ATP-binding cassette sub-family B member 10, mitochondrial isoform X2 [Homo sapiens]
Protein Classification
List of domain hits
| Name | Accession | Description | Interval | E-value | |||||
| ABC_6TM_ABCB10_like | cd18573 | Six-transmembrane helical domain (6-TMD) of the mitochondrial transporter ABCB10 (subfamily B, ... |
174-447 | 1.35e-144 | |||||
Six-transmembrane helical domain (6-TMD) of the mitochondrial transporter ABCB10 (subfamily B, member 10) and similar proteins; This group includes the 6-TM subunit of the ABC10 (also known as ABC mitochondrial erythroid, ABC-me, mABC2, or ABCBA), which is one of the three ATP-binding cassette (ABC) transporters found in the inner membrane of mitochondria, with the nucleotide-binding domains (NBDs) inside the mitochondrial matrix. In mammals, ABCB10 is essential for erythropoiesis and for protection of mitochondria against oxidative stress. ABC transporters typically consist of two transmembrane domains (TMDs) and two nucleotide-binding domains (NBDs). The sequences and structures of the TMDs are quite varied between the different type of transporters, suggesting significant structural diversity of the translocated substrates, while NBDs are conserved among all ABC transporters. The two NBDs together bind and hydrolyze ATP, thereby providing the driving force for transport, while the TMDs participate in substrate recognition and translocation across the lipid membrane. : Pssm-ID: 350017 [Multi-domain] Cd Length: 294 Bit Score: 416.53 E-value: 1.35e-144
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| Name | Accession | Description | Interval | E-value | |||||
| ABC_6TM_ABCB10_like | cd18573 | Six-transmembrane helical domain (6-TMD) of the mitochondrial transporter ABCB10 (subfamily B, ... |
174-447 | 1.35e-144 | |||||
Six-transmembrane helical domain (6-TMD) of the mitochondrial transporter ABCB10 (subfamily B, member 10) and similar proteins; This group includes the 6-TM subunit of the ABC10 (also known as ABC mitochondrial erythroid, ABC-me, mABC2, or ABCBA), which is one of the three ATP-binding cassette (ABC) transporters found in the inner membrane of mitochondria, with the nucleotide-binding domains (NBDs) inside the mitochondrial matrix. In mammals, ABCB10 is essential for erythropoiesis and for protection of mitochondria against oxidative stress. ABC transporters typically consist of two transmembrane domains (TMDs) and two nucleotide-binding domains (NBDs). The sequences and structures of the TMDs are quite varied between the different type of transporters, suggesting significant structural diversity of the translocated substrates, while NBDs are conserved among all ABC transporters. The two NBDs together bind and hydrolyze ATP, thereby providing the driving force for transport, while the TMDs participate in substrate recognition and translocation across the lipid membrane. Pssm-ID: 350017 [Multi-domain] Cd Length: 294 Bit Score: 416.53 E-value: 1.35e-144
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| 3a01208 | TIGR00958 | Conjugate Transporter-2 (CT2) Family protein; [Transport and binding proteins, Other] |
158-442 | 6.86e-66 | |||||
Conjugate Transporter-2 (CT2) Family protein; [Transport and binding proteins, Other] Pssm-ID: 273363 [Multi-domain] Cd Length: 711 Bit Score: 225.76 E-value: 6.86e-66
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| MdlB | COG1132 | ABC-type multidrug transport system, ATPase and permease component [Defense mechanisms]; |
158-439 | 2.26e-62 | |||||
ABC-type multidrug transport system, ATPase and permease component [Defense mechanisms]; Pssm-ID: 440747 [Multi-domain] Cd Length: 579 Bit Score: 213.49 E-value: 2.26e-62
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| ABC_membrane | pfam00664 | ABC transporter transmembrane region; This family represents a unit of six transmembrane ... |
171-438 | 1.90e-60 | |||||
ABC transporter transmembrane region; This family represents a unit of six transmembrane helices. Many members of the ABC transporter family (pfam00005) have two such regions. Pssm-ID: 459896 [Multi-domain] Cd Length: 274 Bit Score: 199.79 E-value: 1.90e-60
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| PRK11176 | PRK11176 | lipid A ABC transporter ATP-binding protein/permease MsbA; |
239-415 | 1.11e-12 | |||||
lipid A ABC transporter ATP-binding protein/permease MsbA; Pssm-ID: 183016 [Multi-domain] Cd Length: 582 Bit Score: 70.43 E-value: 1.11e-12
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| Name | Accession | Description | Interval | E-value | |||||
| ABC_6TM_ABCB10_like | cd18573 | Six-transmembrane helical domain (6-TMD) of the mitochondrial transporter ABCB10 (subfamily B, ... |
174-447 | 1.35e-144 | |||||
Six-transmembrane helical domain (6-TMD) of the mitochondrial transporter ABCB10 (subfamily B, member 10) and similar proteins; This group includes the 6-TM subunit of the ABC10 (also known as ABC mitochondrial erythroid, ABC-me, mABC2, or ABCBA), which is one of the three ATP-binding cassette (ABC) transporters found in the inner membrane of mitochondria, with the nucleotide-binding domains (NBDs) inside the mitochondrial matrix. In mammals, ABCB10 is essential for erythropoiesis and for protection of mitochondria against oxidative stress. ABC transporters typically consist of two transmembrane domains (TMDs) and two nucleotide-binding domains (NBDs). The sequences and structures of the TMDs are quite varied between the different type of transporters, suggesting significant structural diversity of the translocated substrates, while NBDs are conserved among all ABC transporters. The two NBDs together bind and hydrolyze ATP, thereby providing the driving force for transport, while the TMDs participate in substrate recognition and translocation across the lipid membrane. Pssm-ID: 350017 [Multi-domain] Cd Length: 294 Bit Score: 416.53 E-value: 1.35e-144
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| ABC_6TM_TAP_ABCB8_10_like | cd18557 | Six-transmembrane helical domain (6-TMD) of the ABC transporter TAP, ABCB8 and ABCB10; This ... |
174-447 | 1.01e-109 | |||||
Six-transmembrane helical domain (6-TMD) of the ABC transporter TAP, ABCB8 and ABCB10; This group includes ABC transporter associated with antigen processing (TAP), which is essential to cellular immunity against viral infection, as well as ABCB8 and ABCB10, which are found in the inner membrane of mitochondria, with the nucleotide-binding domains (NBDs) inside the mitochondrial matrix. TAP is involved in the transport of antigens from the cytoplasm to the endoplasmic reticulum(ER) for association with MHC class I molecules, which play a central role in the adaptive immune response to viruses and cancers by presenting antigenic peptides to CD8+ cytotoxic T lymphocytes (CTLs). Mammalian ABCB10 is essential for erythropoiesis and for protection of mitochondria against oxidative stress, while ABCB8 is essential for normal cardiac function, maintenance of mitochondrial iron homeostasis and maturation of cytosolic Fe/S proteins. Pssm-ID: 350001 [Multi-domain] Cd Length: 289 Bit Score: 327.60 E-value: 1.01e-109
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| ABC_6TM_AtABCB27_like | cd18780 | Six-transmembrane helical domain (6-TMD) of the Arabidopsis ABC transporter B family member 27 ... |
177-447 | 1.23e-97 | |||||
Six-transmembrane helical domain (6-TMD) of the Arabidopsis ABC transporter B family member 27 and similar proteins; This group includes Arabidopsis ABC transporter B family member 27 (also known as AtABCB27, aluminum tolerance-related ATP-binding cassette transporter, transporter associated with antigen processing-like protein 2, AtTAP2, and ALS1) which may play a role in aluminum resistance. The ABC_6TM_TAP_ABCB8_10_like subgroup of the ABC_6TM exporter family includes ABC transporter associated with antigen processing (TAP), which is essential to cellular immunity against viral infection, as well as ABCB8 and ABCB10, which are found in the inner membrane of mitochondria, with the nucleotide-binding domains (NBDs) inside the mitochondrial matrix. Mammalian ABCB10 is essential for erythropoiesis and for protection of mitochondria against oxidative stress, while ABCB8 is essential for normal cardiac function, maintenance of mitochondrial iron homeostasis and maturation of cytosolic Fe/S proteins. The ABC_6TM exporter family represents the six transmembrane (TM) helices typically found in the ATP-binding cassette (ABC) transporters that function as exporters, which contain 6 TM helices per subunit (domain), or a total of 12 TM helices for the complete transporter. The ABC exporters are found in both prokaryotes and eukaryotes, where they mediate the cellular secretion of toxic compounds and a various type of lipids. In addition to ABC exporters, ABC transporters include two classes of ABC importers, classified depending on details of their architecture and mechanism. Only the ABC exporters are included in the ABC_6TM exporter family. Pssm-ID: 350053 [Multi-domain] Cd Length: 295 Bit Score: 296.85 E-value: 1.23e-97
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| ABC_6TM_TAP | cd18572 | Six-transmembrane helical domain (6-TMD) of the ABC transporter associated with antigen ... |
174-442 | 3.31e-75 | |||||
Six-transmembrane helical domain (6-TMD) of the ABC transporter associated with antigen processing; This group represents the 6-TM subunit of the ABC transporter associated with antigen processing (TAP), which is essential to cellular immunity against viral infection. TAP is involved in the transport of antigens from the cytoplasm to the endoplasmic reticulum(ER) for association with MHC class I molecules, which play a central role in the adaptive immune response to viruses and cancers by presenting antigenic peptides to CD8+ cytotoxic T lymphocytes (CTLs). It also acts as a molecular scaffold for the assembly of the MHC I peptide-loading complex in the ER membrane. Newly synthesized MHC class I molecules associate with TAP via tapasin, which is one component of the peptide-loading complex. TAP is a heterodimer formed by two distinct subunits, TAP1 (ABCB2) and TAP2 (ABCB3), each half-transporter comprises one transmembrane domain (TMD) and one nucleotide domain (NBD). Two 6-helical core TMDs contain the peptide-binding pocket and translocation channel, while the NBDs bind and hydrolyze ATP to power peptide translocation. Pssm-ID: 350016 [Multi-domain] Cd Length: 289 Bit Score: 238.98 E-value: 3.31e-75
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| ABC_6TM_bac_exporter_ABCB8_10_like | cd18576 | Six-transmembrane helical domain of putative bacterial ABC exporters, similar to ABCB8 and ... |
174-447 | 4.16e-71 | |||||
Six-transmembrane helical domain of putative bacterial ABC exporters, similar to ABCB8 and ABCB10; This group includes putative bacterial ABC transporters similar to ABCB8 and ABCB10, which are found in the inner membrane of mitochondria, with the nucleotide-binding domains (NBDs) inside the mitochondrial matrix. Mammalian ABCB10 is essential for erythropoiesis and for protection of mitochondria against oxidative stress, while ABCB8 is essential for normal cardiac function, maintenance of mitochondrial iron homeostasis and maturation of cytosolic Fe/S proteins. Bacterial exporters are typically formed by dimers of TMD-NBD half-transporters. Thus, most bacterial ABC transporters are formed of two identical TMDs and two identical NBDs. Pssm-ID: 350020 [Multi-domain] Cd Length: 289 Bit Score: 228.14 E-value: 4.16e-71
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| 3a01208 | TIGR00958 | Conjugate Transporter-2 (CT2) Family protein; [Transport and binding proteins, Other] |
158-442 | 6.86e-66 | |||||
Conjugate Transporter-2 (CT2) Family protein; [Transport and binding proteins, Other] Pssm-ID: 273363 [Multi-domain] Cd Length: 711 Bit Score: 225.76 E-value: 6.86e-66
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| ABC_6TM_ABCB8_like | cd18574 | Six-transmembrane helical domain (6-TMD) of ATP-binding cassette transporter subfamily B ... |
172-436 | 5.54e-63 | |||||
Six-transmembrane helical domain (6-TMD) of ATP-binding cassette transporter subfamily B member 8, mitochondrial, and similar proteins; This group includes ABCB8, which is one of the three ATP-binding cassette (ABC) transporters found in the inner membrane of mitochondria, with the nucleotide-binding domains (NBDs) inside the mitochondrial matrix. ABCB8 is essential for maintenance of normal cardiac function, involves mitochondrial iron export, and plays a role in the maturation of cytosolic Fe/S cluster-containing enzymes. ABCB8 is a half-molecule ABC protein that contains one TMD fused to a NBD, which dimerize to form a functional transporter. Pssm-ID: 350018 [Multi-domain] Cd Length: 295 Bit Score: 207.40 E-value: 5.54e-63
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| MdlB | COG1132 | ABC-type multidrug transport system, ATPase and permease component [Defense mechanisms]; |
158-439 | 2.26e-62 | |||||
ABC-type multidrug transport system, ATPase and permease component [Defense mechanisms]; Pssm-ID: 440747 [Multi-domain] Cd Length: 579 Bit Score: 213.49 E-value: 2.26e-62
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| ABC_membrane | pfam00664 | ABC transporter transmembrane region; This family represents a unit of six transmembrane ... |
171-438 | 1.90e-60 | |||||
ABC transporter transmembrane region; This family represents a unit of six transmembrane helices. Many members of the ABC transporter family (pfam00005) have two such regions. Pssm-ID: 459896 [Multi-domain] Cd Length: 274 Bit Score: 199.79 E-value: 1.90e-60
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| ABC_6TM_bac_exporter_ABCB8_10_like | cd18575 | Six-transmembrane helical domain of putative bacterial ABC exporters, similar to ABCB8 and ... |
174-447 | 1.57e-56 | |||||
Six-transmembrane helical domain of putative bacterial ABC exporters, similar to ABCB8 and ABCB10; This group includes putative bacterial ABC transporters similar to ABCB8 and ABCB10, which are found in the inner membrane of mitochondria, with the nucleotide-binding domains (NBDs) inside the mitochondrial matrix. Mammalian ABCB10 is essential for erythropoiesis and for protection of mitochondria against oxidative stress, while ABCB8 is essential for normal cardiac function, maintenance of mitochondrial iron homeostasis and maturation of cytosolic Fe/S proteins. Bacterial exporters are typically formed by dimers of TMD-NBD half-transporters. Thus, most bacterial ABC transporters are formed of two identical TMDs and two identical NBDs. Pssm-ID: 350019 [Multi-domain] Cd Length: 289 Bit Score: 190.00 E-value: 1.57e-56
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| ABC_6TM_ABCB9_like | cd18784 | Six-transmembrane helical domain (6-TMD) of ATP-binding cassette sub-family B member 9 and ... |
177-447 | 2.57e-54 | |||||
Six-transmembrane helical domain (6-TMD) of ATP-binding cassette sub-family B member 9 and similar proteins; ATP-binding cassette sub-family B member 9 is also known as transporter associated with antigen processing, TAP-like protein, TAPL, and ABCB9. It is a half transporter comprises a homodimeric lysosomal peptide transport complex. It belongs to the ABC_6TM_TAP_ABCB8_10_like subgroup of the ABC_6TM exporter family. The ABC_6TM exporter family represents the six transmembrane (TM) helices typically found in the ATP-binding cassette (ABC) transporters that function as exporters, which contain 6 TM helices per subunit (domain), or a total of 12 TM helices for the complete transporter. The ABC exporters are found in both prokaryotes and eukaryotes, where they mediate the cellular secretion of toxic compounds and a various type of lipids. In addition to ABC exporters, ABC transporters include two classes of ABC importers, classified depending on details of their architecture and mechanism. Only the ABC exporters are included in the ABC_6TM exporter family. ABC transporters typically consist of two transmembrane domains (TMDs) and two nucleotide-binding domains (NBDs. The sequences and structures of the TMDs are quite varied between the different type of transporters, suggesting chemical diversity of the translocated substrates, whereas NBDs are conserved among all ABC transporters. The two NBDs together bind and hydrolyze ATP, thereby providing the driving force for transport, while the TMDs participate in substrate recognition and translocation across the lipid membrane. However, some ABC genes are organized as half-transporters, which must form either homodimers or heterodimers to form a functional unit. Pssm-ID: 350057 [Multi-domain] Cd Length: 289 Bit Score: 184.44 E-value: 2.57e-54
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| ABC_6TM_exporters | cd07346 | Six-transmembrane helical domain of the ATP-binding cassette transporters; This family ... |
171-437 | 6.79e-54 | |||||
Six-transmembrane helical domain of the ATP-binding cassette transporters; This family represents a subunit of six transmembrane (TM) helices typically found in the ATP-binding cassette (ABC) transporters that function as exporters, which contain 6 TM helices per subunit (domain), or a total of 12 TM helices for the complete transporter. The ABC exporters are found in both prokaryotes and eukaryotes, where they mediate the cellular secretion of toxic compounds and a various type of lipids. In addition to ABC exporters, ABC transporters include two classes of ABC importers, classified depending on details of their architecture and mechanism. Only the ABC exporters are included in this family. ABC transporters typically consist of two transmembrane domains (TMDs) and two nucleotide-binding domains (NBDs). The sequences and structures of the TMDs are quite varied between the different type of transporters, suggesting chemical diversity of the translocated substrates, whereas NBDs are conserved among all ABC transporters. The two NBDs together bind and hydrolyze ATP, thereby providing the driving force for transport, while the TMDs participate in substrate recognition and translocation across the lipid membrane. However, some ABC genes are organized as half-transporters, which must form either homodimers or heterodimers to form a functional unit. The ABC exporters play a role in multidrug resistance to antibiotics and anticancer agents, and mutations in these proteins have been shown to cause severe human diseases such as cystic fibrosis. Pssm-ID: 349983 [Multi-domain] Cd Length: 292 Bit Score: 183.14 E-value: 6.79e-54
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| ABC_6TM_YknU_like | cd18542 | Six-transmembrane helical domain (6-TMD) of the uncharacterized ABC transporter YknU and ... |
171-441 | 4.96e-50 | |||||
Six-transmembrane helical domain (6-TMD) of the uncharacterized ABC transporter YknU and similar proteins; This group represents the six-transmembrane helical domain (6-TMD) of the uncharacterized ABC transporter YknU and similar proteins. This TMD possesses the ATP-binding cassette (ABC) exporter fold, which is characterized by 6 TM helices per subunit (domain), or a total of 12 TM helices for the complete transporter. The ABC exporters are found in both prokaryotes and eukaryotes, where they mediate the cellular secretion of toxic compounds and a various type of lipids. ABC transporters typically consist of two transmembrane domains (TMDs) and two nucleotide-binding domains (NBDs). The sequences and structures of the TMDs are quite varied between the different type of transporters, suggesting significant structural diversity of the translocated substrates, while NBDs are conserved among all ABC transporters. The two NBDs together bind and hydrolyze ATP, thereby providing the driving force for transport, while the TMDs participate in substrate recognition and translocation across the lipid membrane. However, some ABC genes are organized as half-transporters, which must form either homodimers or heterodimers to form a functional transporter. The ABC exporters play a role in multidrug resistance to antibiotics and anticancer agents, and mutations in these proteins have been shown to cause severe human diseases such as cystic fibrosis. Pssm-ID: 349986 [Multi-domain] Cd Length: 292 Bit Score: 173.00 E-value: 4.96e-50
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| ABC_6TM_MsbA_like | cd18552 | Six-transmembrane helical domain of the bacterial ABC lipid flippase MsbA and similar proteins; ... |
171-439 | 7.12e-50 | |||||
Six-transmembrane helical domain of the bacterial ABC lipid flippase MsbA and similar proteins; The bacterial lipid flippase MsbA is found in Gram-negative bacteria and transports lipid A and lipopolysaccharide (LPS) from the cytoplasmic leaflet to the periplasmic leaflet of the inner membrane. MsbA is also a polyspecific transporter capable of transporting a broad spectrum of drug molecules. Additionally, MsbA exhibits significant sequence similarity to mammalian multidrug resistance (MDR) proteins such as human MDR protein 1 (MDR1) and LmrA from Lactococcus lactis. This subgroup also contains a putative transporter Brevibacillus brevis TycD; the location of the tycD gene within the Tyc (tyrocidine) biosynthesis operon suggests that TycD may play a role in the secretion of the cyclic decapeptide antibiotic tyrocidine. This transmembrane (TM) subunit possesses the ATP-binding cassette (ABC) exporter fold, which is characterized by 6 TM helices per subunit (domain), or a total of 12 TM helices for the complete transporter. The ABC exporters are found in both prokaryotes and eukaryotes, where they mediate the cellular secretion of toxic compounds, a various type of lipids and polypeptides. ABC transporters typically consist of two transmembrane domains (TMDs) and two nucleotide-binding domains (NBDs). The sequences and structures of the TMDs are quite varied between the different type of transporters, suggesting significant structural diversity of the translocated substrates, while NBDs are conserved among all ABC transporters. The two NBDs together bind and hydrolyze ATP, thereby providing the driving force for transport, while the TMDs participate in substrate recognition and translocation across the lipid membrane by alternating between inward- and outward-facing conformations. Moreover, some ABC genes are organized as half-transporters, which must form either homodimers or heterodimers to form a functional transporter. The ABC exporters play a role in multidrug resistance to antibiotics and anticancer agents, and mutations in these proteins have been shown to cause severe human diseases such as cystic fibrosis. Pssm-ID: 349996 [Multi-domain] Cd Length: 292 Bit Score: 172.61 E-value: 7.12e-50
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| ABC_6TM_LmrA_like | cd18551 | Six-transmembrane helical domain of the multidrug resistance ABC transporter LmrA and similar ... |
171-439 | 2.53e-49 | |||||
Six-transmembrane helical domain of the multidrug resistance ABC transporter LmrA and similar proteins; This group represents the six-transmembrane helical domain of the multidrug resistance ABC transporter LmrA from Lactococcus lactis and similar proteins. This transmembrane (TM) subunit possesses the ATP-binding cassette (ABC) exporter fold, which is characterized by 6 TM helices per subunit (domain), or a total of 12 TM helices for the complete transporter. The ABC exporters are found in both prokaryotes and eukaryotes, where they mediate the cellular secretion of toxic compounds, a various type of lipids and polypeptides. ABC transporters typically consist of two transmembrane domains (TMDs) and two nucleotide-binding domains (NBDs). The sequences and structures of the TMDs are quite varied between the different type of transporters, suggesting significant structural diversity of the translocated substrates, while NBDs are conserved among all ABC transporters. The two NBDs together bind and hydrolyze ATP, thereby providing the driving force for transport, while the TMDs participate in substrate recognition and translocation across the lipid membrane by alternating between inward- and outward-facing conformations. Moreover, some ABC genes are organized as half-transporters, which must form either homodimers or heterodimers to form a functional transporter. The ABC exporters play a role in multidrug resistance to antibiotics and anticancer agents, and mutations in these proteins have been shown to cause severe human diseases such as cystic fibrosis. Pssm-ID: 349995 [Multi-domain] Cd Length: 289 Bit Score: 171.08 E-value: 2.53e-49
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| ABC_6TM_TAP2 | cd18590 | Six-transmembrane helical domain 2 (6-TMD2) of the ABC transporter associated with antigen ... |
177-445 | 5.40e-47 | |||||
Six-transmembrane helical domain 2 (6-TMD2) of the ABC transporter associated with antigen processing 2 (TAP2); This group represents the 6-TM subunit of the ABC transporter associated with antigen processing (TAP), which is essential to cellular immunity against viral infection. TAP is involved in the transport of antigens from the cytoplasm to the endoplasmic reticulum(ER) for association with MHC class I molecules, which play a central role in the adaptive immune response to viruses and cancers by presenting antigenic peptides to CD8+ cytotoxic T lymphocytes (CTLs). It also acts as a molecular scaffold for the assembly of the MHC I peptide-loading complex in the ER membrane. Newly synthesized MHC class I molecules associate with TAP via tapasin, which is one component of the peptide-loading complex. TAP is a heterodimer formed by two distinct subunits, TAP1 (ABCB2) and TAP2 (ABCB3), each half-transporter comprises one transmembrane domain (TMD) and one nucleotide domain (NBD). Two 6-helical core TMDs contain the peptide-binding pocket and translocation channel, while the NBDs bind and hydrolyze ATP to power peptide translocation. Pssm-ID: 350034 [Multi-domain] Cd Length: 289 Bit Score: 164.82 E-value: 5.40e-47
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| ABC_6TM_Pgp_ABCB1_D1_like | cd18577 | Six-transmembrane helical domain 1 (TMD1) of P-glycoprotein 1 (Pgp) and related proteins; ... |
190-442 | 2.70e-46 | |||||
Six-transmembrane helical domain 1 (TMD1) of P-glycoprotein 1 (Pgp) and related proteins; P-glycoprotein 1 (permeability glycoprotein, Pgp) also known as multidrug resistance protein 1 (MDR1) or ATP-binding cassette sub-family B member 1 (ABCB1) is a member of the superfamily of ATP-binding cassette (ABC) transporters. Pgp acts as an ATP-dependent efflux pump, binds drugs with diverse chemical structures and pump them out of the drug resistant cancer cells. It is responsible for decreased drug accumulation in multidrug-resistant cells and mediates the development of resistance to anticancer drugs. Pgp consists of two alpha-helical transmembrane domains (TMDs) and two cytoplasmic nucleotide-binding domains (NBDs). This protein also functions as a transporter in the blood-brain barrier. In addition to Pgp, breast cancer resistance protein (BCRP/MXR/ABC-P/ABCG2) and multidrug resistance-associated proteins (MRP1/ABCC1 and MRP2/ABCC2) function as drug efflux pumps of anticancer drugs, and overexpression of these transporters induces multidrug resistance to a broad spectrum of anticancer drugs including doxorubicin, taxol, and vinca alkaloids by actively pumping the drugs out of cells. Pssm-ID: 350021 [Multi-domain] Cd Length: 300 Bit Score: 163.41 E-value: 2.70e-46
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| ABC_6TM_Tm288_like | cd18547 | Six-transmembrane helical domain Tm288 of a heterodimeric ABC transporter Tm287/288 from ... |
171-438 | 3.19e-43 | |||||
Six-transmembrane helical domain Tm288 of a heterodimeric ABC transporter Tm287/288 from Thermotoga maritima and similar proteins; This group represents the six-transmembrane helical domain (Tm288) of a heterodimeric ABC transporter Tm287/288 from Thermotoga maritima and similar proteins. This TMD possesses the ATP-binding cassette (ABC) exporter fold, which is characterized by 6 TM helices per subunit (domain), or a total of 12 TM helices for the complete transporter. The ABC exporters are found in both prokaryotes and eukaryotes, where they mediate the cellular secretion of toxic compounds, a various type of lipids and polypeptides. ABC transporters typically consist of two transmembrane domains (TMDs) and two nucleotide-binding domains (NBDs). The sequences and structures of the TMDs are quite varied between the different type of transporters, suggesting significant structural diversity of the translocated substrates, while NBDs are conserved among all ABC transporters. The two NBDs together bind and hydrolyze ATP, thereby providing the driving force for transport, while the TMDs participate in substrate recognition and translocation across the lipid membrane by alternating between inward- and outward-facing conformations. Moreover, some ABC genes are organized as half-transporters, which must form either homodimers or heterodimers to form a functional transporter. The ABC exporters play a role in multidrug resistance to antibiotics and anticancer agents, and mutations in these proteins have been shown to cause severe human diseases such as cystic fibrosis. Pssm-ID: 349991 [Multi-domain] Cd Length: 298 Bit Score: 154.87 E-value: 3.19e-43
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| ABC_6TM_TmrA_like | cd18544 | Six-transmembrane helical domain (TmrA) of the heterodimeric Thermus thermophilus multidrug ... |
171-437 | 7.22e-43 | |||||
Six-transmembrane helical domain (TmrA) of the heterodimeric Thermus thermophilus multidrug resistance proteins TmrAB, and similar proteins; This group represents the six-transmembrane helical domain (TrmA) of the heterodimeric Thermus thermophilus multidrug resistance proteins A and B (TmrAB), a homolog of the Antigen Translocation Complex Tap, and similar proteins. TmrAB has been shown to able to restore antigen processing in human TAP-deficient cells. The 6-transmembrane (TM) helices typically found in the ATP-binding cassette (ABC) transporters that function as exporters, which contain 6 TM helices per subunit (domain), or a total of 12 TM helices for the complete transporter. The ABC exporters are found in both prokaryotes and eukaryotes, where they mediate the cellular secretion of toxic compounds and a various type of lipids. ABC transporters typically consist of two transmembrane domains (TMDs) and two nucleotide-binding domains (NBDs). The sequences and structures of the TMDs are quite varied between the different type of transporters, suggesting significant structural diversity of the translocated substrates, while NBDs are conserved among all ABC transporters. The two NBDs together bind and hydrolyze ATP, thereby providing the driving force for transport, while the TMDs participate in substrate recognition and translocation across the lipid membrane. However, some ABC genes are organized as half-transporters, which must form either homodimers or heterodimers to form a functional transporter. The ABC exporters play a role in multidrug resistance to antibiotics and anticancer agents, and mutations in these proteins have been shown to cause severe human diseases such as cystic fibrosis. Pssm-ID: 349988 [Multi-domain] Cd Length: 294 Bit Score: 154.08 E-value: 7.22e-43
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| ABC_6TM_TmrB_like | cd18541 | Six-transmembrane helical domain (TmrB) of the heterodimeric Thermus thermophilus multidrug ... |
171-437 | 1.73e-40 | |||||
Six-transmembrane helical domain (TmrB) of the heterodimeric Thermus thermophilus multidrug resistance proteins TmrAB, and similar proteins; This group represents the six-transmembrane helical domain (6-TMD) of the heterodimeric Thermus thermophilus multidrug resistance proteins A and B (TmrAB), a homolog of the Antigen Translocation Complex Tap, and similar proteins. TmrAB has been shown to able to restore antigen processing in human TAP-deficient cells. The 6-transmembrane (TM) helices typically found in the ATP-binding cassette (ABC) transporters that function as exporters, which contain 6 TM helices per subunit (domain), or a total of 12 TM helices for the complete transporter. The ABC exporters are found in both prokaryotes and eukaryotes, where they mediate the cellular secretion of toxic compounds and a various type of lipids. ABC transporters typically consist of two transmembrane domains (TMDs) and two nucleotide-binding domains (NBDs). The sequences and structures of the TMDs are quite varied between the different type of transporters, suggesting significant structural diversity of the translocated substrates, while NBDs are conserved among all ABC transporters. The two NBDs together bind and hydrolyze ATP, thereby providing the driving force for transport, while the TMDs participate in substrate recognition and translocation across the lipid membrane. However, some ABC genes are organized as half-transporters, which must form either homodimers or heterodimers to form a functional transporter. The ABC exporters play a role in multidrug resistance to antibiotics and anticancer agents, and mutations in these proteins have been shown to cause severe human diseases such as cystic fibrosis. Pssm-ID: 349985 [Multi-domain] Cd Length: 293 Bit Score: 147.56 E-value: 1.73e-40
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| ABC_6TM_Pgp_ABCB1_D2_like | cd18578 | Six-transmembrane helical domain 2 (TMD2) of P-glycoprotein 1 (Pgp) and related proteins; ... |
161-431 | 1.46e-39 | |||||
Six-transmembrane helical domain 2 (TMD2) of P-glycoprotein 1 (Pgp) and related proteins; P-glycoprotein 1 (permeability glycoprotein, Pgp) also known as multidrug resistance protein 1 (MDR1) or ATP-binding cassette sub-family B member 1 (ABCB1) is a member of the superfamily of ATP-binding cassette (ABC) transporters. Pgp acts as an ATP-dependent efflux pump, binds drugs with diverse chemical structures and pump them out of the drug resistant cancer cells. It is responsible for decreased drug accumulation in multidrug-resistant cells and mediates the development of resistance to anticancer drugs. Pgp consists of two alpha-helical transmembrane domains (TMDs) and two cytoplasmic nucleotide-binding domains (NBDs). This protein also functions as a transporter in the blood-brain barrier. In addition to Pgp, breast cancer resistance protein (BCRP/MXR/ABC-P/ABCG2) and multidrug resistance-associated proteins (MRP1/ABCC1 and MRP2/ABCC2) function as drug efflux pumps of anticancer drugs, and overexpression of these transporters induces multidrug resistance to a broad spectrum of anticancer drugs including doxorubicin, taxol, and vinca alkaloids by actively pumping the drugs out of cells. Pssm-ID: 350022 [Multi-domain] Cd Length: 317 Bit Score: 145.67 E-value: 1.46e-39
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| ABC_6TM_exporter_like | cd18550 | Six-transmembrane helical domain (TMD) of an uncharacterized ABC exporter, and similar ... |
171-434 | 7.79e-39 | |||||
Six-transmembrane helical domain (TMD) of an uncharacterized ABC exporter, and similar proteins; This group includes a subunit of six transmembrane (TM) helices typically found in the ATP-binding cassette (ABC) transporters that function as exporters, which contain 6 TM helices per subunit (domain), or a total of 12 TM helices for the complete transporter. The ABC exporters are found in both prokaryotes and eukaryotes, where they mediate the cellular secretion of toxic compounds and a various type of lipids. ABC transporters typically consist of two transmembrane domains (TMDs) and two nucleotide-binding domains (NBDs). The sequences and structures of the TMDs are quite varied between the different type of transporters, suggesting the chemical diversity of the translocated substrates, while NBDs are conserved among all ABC transporters. The two NBDs together bind and hydrolyze ATP, thereby providing the driving force for transport, while the TMDs participate in substrate recognition and translocation across the lipid membrane. However, some ABC genes are organized as half-transporters, which must form either homodimers or heterodimers to form a functional transporter. The ABC exporters play a role in multidrug resistance to antibiotics and anticancer agents, and mutations in these proteins have been shown to cause severe human diseases such as cystic fibrosis. Pssm-ID: 349994 [Multi-domain] Cd Length: 294 Bit Score: 143.01 E-value: 7.79e-39
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| ABC_6TM_TAP1 | cd18589 | Six-transmembrane helical domain 1 (6-TMD1) of the ABC transporter associated with antigen ... |
176-437 | 2.86e-38 | |||||
Six-transmembrane helical domain 1 (6-TMD1) of the ABC transporter associated with antigen processing 1 (TAP1); This group represents the 6-TM subunit of the ABC transporter associated with antigen processing (TAP), which is essential to cellular immunity against viral infection. TAP is involved in the transport of antigens from the cytoplasm to the endoplasmic reticulum(ER) for association with MHC class I molecules, which play a central role in the adaptive immune response to viruses and cancers by presenting antigenic peptides to CD8+ cytotoxic T lymphocytes (CTLs). It also acts as a molecular scaffold for the assembly of the MHC I peptide-loading complex in the ER membrane. Newly synthesized MHC class I molecules associate with TAP via tapasin, which is one component of the peptide-loading complex. TAP is a heterodimer formed by two distinct subunits, TAP1 (ABCB2) and TAP2 (ABCB3), each half-transporter comprises one transmembrane domain (TMD) and one nucleotide domain (NBD). Two 6-helical core TMDs contain the peptide-binding pocket and translocation channel, while the NBDs bind and hydrolyze ATP to power peptide translocation. Pssm-ID: 350033 [Multi-domain] Cd Length: 289 Bit Score: 141.45 E-value: 2.86e-38
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| ABC_6TM_exporter_like | cd18563 | Six-transmembrane helical domain (TMD) of an uncharacterized ABC exporter, and similar ... |
173-438 | 5.24e-38 | |||||
Six-transmembrane helical domain (TMD) of an uncharacterized ABC exporter, and similar proteins; This group includes a subunit of six transmembrane (TM) helices typically found in the ATP-binding cassette (ABC) transporters that function as exporters, which contain 6 TM helices per subunit (domain), or a total of 12 TM helices for the complete transporter. The ABC exporters are found in both prokaryotes and eukaryotes, where they mediate the cellular secretion of toxic compounds and a various type of lipids. ABC transporters typically consist of two transmembrane domains (TMDs) and two nucleotide-binding domains (NBDs). The sequences and structures of the TMDs are quite varied between the different type of transporters, suggesting the chemical diversity of the translocated substrates, while NBDs are conserved among all ABC transporters. The two NBDs together bind and hydrolyze ATP, thereby providing the driving force for transport, while the TMDs participate in substrate recognition and translocation across the lipid membrane. However, some ABC genes are organized as half-transporters, which must form either homodimers or heterodimers to form a functional transporter. The ABC exporters play a role in multidrug resistance to antibiotics and anticancer agents, and mutations in these proteins have been shown to cause severe human diseases such as cystic fibrosis. Pssm-ID: 350007 [Multi-domain] Cd Length: 296 Bit Score: 141.11 E-value: 5.24e-38
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| ABC_6TM_YknV_like | cd18545 | Six-transmembrane helical domain (6-TMD) of the uncharacterized ABC transporter YknV and ... |
170-440 | 6.86e-33 | |||||
Six-transmembrane helical domain (6-TMD) of the uncharacterized ABC transporter YknV and similar proteins; This group represents the six-transmembrane helical domain (6-TMD) of the uncharacterized ABC transporter YknV and similar proteins. This TMD possesses the ATP-binding cassette (ABC) exporter fold, which is characterized by 6 TM helices per subunit (domain), or a total of 12 TM helices for the complete transporter. The ABC exporters are found in both prokaryotes and eukaryotes, where they mediate the cellular secretion of toxic compounds and a various type of lipids. ABC transporters typically consist of two transmembrane domains (TMDs) and two nucleotide-binding domains (NBDs). The sequences and structures of the TMDs are quite varied between the different type of transporters, suggesting significant structural diversity of the translocated substrates, while NBDs are conserved among all ABC transporters. The two NBDs together bind and hydrolyze ATP, thereby providing the driving force for transport, while the TMDs participate in substrate recognition and translocation across the lipid membrane. However, some ABC genes are organized as half-transporters, which must form either homodimers or heterodimers to form a functional transporter. The ABC exporters play a role in multidrug resistance to antibiotics and anticancer agents, and mutations in these proteins have been shown to cause severe human diseases such as cystic fibrosis. Pssm-ID: 349989 [Multi-domain] Cd Length: 293 Bit Score: 126.81 E-value: 6.86e-33
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| SunT | COG2274 | ABC-type bacteriocin/lantibiotic exporters, contain an N-terminal double-glycine peptidase ... |
158-438 | 3.53e-31 | |||||
ABC-type bacteriocin/lantibiotic exporters, contain an N-terminal double-glycine peptidase domain [Defense mechanisms]; Pssm-ID: 441875 [Multi-domain] Cd Length: 711 Bit Score: 127.64 E-value: 3.53e-31
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| ABC_6TM_exporter_like | cd18564 | Six-transmembrane helical domain (TMD) of an uncharacterized ABC exporter, and similar ... |
171-437 | 5.63e-31 | |||||
Six-transmembrane helical domain (TMD) of an uncharacterized ABC exporter, and similar proteins; This group includes a subunit of six transmembrane (TM) helices typically found in the ATP-binding cassette (ABC) transporters that function as exporters, which contain 6 TM helices per subunit (domain), or a total of 12 TM helices for the complete transporter. The ABC exporters are found in both prokaryotes and eukaryotes, where they mediate the cellular secretion of toxic compounds and a various type of lipids. ABC transporters typically consist of two transmembrane domains (TMDs) and two nucleotide-binding domains (NBDs). The sequences and structures of the TMDs are quite varied between the different type of transporters, suggesting the chemical diversity of the translocated substrates, while NBDs are conserved among all ABC transporters. The two NBDs together bind and hydrolyze ATP, thereby providing the driving force for transport, while the TMDs participate in substrate recognition and translocation across the lipid membrane. However, some ABC genes are organized as half-transporters, which must form either homodimers or heterodimers to form a functional transporter. The ABC exporters play a role in multidrug resistance to antibiotics and anticancer agents, and mutations in these proteins have been shown to cause severe human diseases such as cystic fibrosis. Pssm-ID: 350008 [Multi-domain] Cd Length: 307 Bit Score: 121.85 E-value: 5.63e-31
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| ABC_6TM_Tm287_like | cd18548 | Six-transmembrane helical domain Tm287 of a heterodimeric ABC transporter Tm287/288 from ... |
171-445 | 3.95e-30 | |||||
Six-transmembrane helical domain Tm287 of a heterodimeric ABC transporter Tm287/288 from Thermotoga maritima and similar proteins; This group represents the six-transmembrane helical domain (Tm287) of a heterodimeric ABC transporter Tm287/288 from Thermotoga maritima and similar proteins. This TMD possesses the ATP-binding cassette (ABC) exporter fold, which is characterized by 6 TM helices per subunit (domain), or a total of 12 TM helices for the complete transporter. The ABC exporters are found in both prokaryotes and eukaryotes, where they mediate the cellular secretion of toxic compounds, a various type of lipids and polypeptides. ABC transporters typically consist of two transmembrane domains (TMDs) and two nucleotide-binding domains (NBDs). The sequences and structures of the TMDs are quite varied between the different type of transporters, suggesting significant structural diversity of the translocated substrates, while NBDs are conserved among all ABC transporters. The two NBDs together bind and hydrolyze ATP, thereby providing the driving force for transport, while the TMDs participate in substrate recognition and translocation across the lipid membrane by alternating between inward- and outward-facing conformations. Moreover, some ABC genes are organized as half-transporters, which must form either homodimers or heterodimers to form a functional transporter. The ABC exporters play a role in multidrug resistance to antibiotics and anticancer agents, and mutations in these proteins have been shown to cause severe human diseases such as cystic fibrosis. Pssm-ID: 349992 [Multi-domain] Cd Length: 292 Bit Score: 119.04 E-value: 3.95e-30
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| ABC_6TM_YwjA_like | cd18549 | Six-transmembrane helical domain of an uncharacterized ABC transporter YwjA and similar ... |
171-437 | 5.58e-30 | |||||
Six-transmembrane helical domain of an uncharacterized ABC transporter YwjA and similar proteins; This group represents the six-transmembrane helical domain of an uncharacterized ABC transporter YwjA from Bacillus subtilis and similar proteins. This transmembrane (TM) subunit possesses the ATP-binding cassette (ABC) exporter fold, which is characterized by 6 TM helices per subunit (domain), or a total of 12 TM helices for the complete transporter. The ABC exporters are found in both prokaryotes and eukaryotes, where they mediate the cellular secretion of toxic compounds, a various type of lipids and polypeptides. ABC transporters typically consist of two transmembrane domains (TMDs) and two nucleotide-binding domains (NBDs). The sequences and structures of the TMDs are quite varied between the different type of transporters, suggesting significant structural diversity of the translocated substrates, while NBDs are conserved among all ABC transporters. The two NBDs together bind and hydrolyze ATP, thereby providing the driving force for transport, while the TMDs participate in substrate recognition and translocation across the lipid membrane by alternating between inward- and outward-facing conformations. Moreover, some ABC genes are organized as half-transporters, which must form either homodimers or heterodimers to form a functional transporter. The ABC exporters play a role in multidrug resistance to antibiotics and anticancer agents, and mutations in these proteins have been shown to cause severe human diseases such as cystic fibrosis. Pssm-ID: 349993 [Multi-domain] Cd Length: 295 Bit Score: 118.71 E-value: 5.58e-30
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| ABC_6TM_exporter_like | cd18778 | Six-transmembrane helical domain (TMD) of an uncharacterized ABC exporter, and similar ... |
171-437 | 1.33e-29 | |||||
Six-transmembrane helical domain (TMD) of an uncharacterized ABC exporter, and similar proteins; This group includes a subunit of six transmembrane (TM) helices typically found in the ATP-binding cassette (ABC) transporters that function as exporters, which contain 6 TM helices per subunit (domain), or a total of 12 TM helices for the complete transporter. The ABC exporters are found in both prokaryotes and eukaryotes, where they mediate the cellular secretion of toxic compounds and a various type of lipids. ABC transporters typically consist of two transmembrane domains (TMDs) and two nucleotide-binding domains (NBDs). The sequences and structures of the TMDs are quite varied between the different type of transporters, suggesting the chemical diversity of the translocated substrates, while NBDs are conserved among all ABC transporters. The two NBDs together bind and hydrolyze ATP, thereby providing the driving force for transport, while the TMDs participate in substrate recognition and translocation across the lipid membrane. However, some ABC genes are organized as half-transporters, which must form either homodimers or heterodimers to form a functional transporter. The ABC exporters play a role in multidrug resistance to antibiotics and anticancer agents, and mutations in these proteins have been shown to cause severe human diseases such as cystic fibrosis. Pssm-ID: 350051 [Multi-domain] Cd Length: 293 Bit Score: 117.64 E-value: 1.33e-29
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| ABC_6TM_Rv0194_D2_like | cd18546 | Six-transmembrane helical domain 2 (TMD2) of the multidrug efflux ABC transporter Rv0194 and ... |
171-437 | 1.50e-28 | |||||
Six-transmembrane helical domain 2 (TMD2) of the multidrug efflux ABC transporter Rv0194 and similar proteins; This group includes the six-transmembrane helical domain 2 (TMD2) of the multidrug efflux ATP-binding/permease protein Rv0194 from Mycobacterium tuberculosis and similar proteins. This TMD possesses the ATP-binding cassette (ABC) exporter fold, which is characterized by 6 TM helices per subunit (domain), or a total of 12 TM helices for the complete transporter. The ABC exporters are found in both prokaryotes and eukaryotes, where they mediate the cellular secretion of toxic compounds and a various type of lipids. ABC transporters typically consist of two transmembrane domains (TMDs) and two nucleotide-binding domains (NBDs). The sequences and structures of the TMDs are quite varied between the different type of transporters, suggesting significant structural diversity of the translocated substrates, while NBDs are conserved among all ABC transporters. The two NBDs together bind and hydrolyze ATP, thereby providing the driving force for transport, while the TMDs participate in substrate recognition and translocation across the lipid membrane. However, some ABC genes are organized as half-transporters, which must form either homodimers or heterodimers to form a functional transporter. The ABC exporters play a role in multidrug resistance to antibiotics and anticancer agents, and mutations in these proteins have been shown to cause severe human diseases such as cystic fibrosis. Pssm-ID: 349990 [Multi-domain] Cd Length: 292 Bit Score: 114.51 E-value: 1.50e-28
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| ABC_6TM_Rv0194_D1_like | cd18543 | Six-transmembrane helical domain 1 (TMD1) of the multidrug efflux ABC transporter Rv0194 and ... |
171-438 | 1.49e-26 | |||||
Six-transmembrane helical domain 1 (TMD1) of the multidrug efflux ABC transporter Rv0194 and similar proteins; This group includes the six-transmembrane helical domain 1 (TMD1) of the multidrug efflux ATP-binding/permease protein Rv0194 from Mycobacterium tuberculosis and similar proteins. This TMD possesses the ATP-binding cassette (ABC) exporter fold, which is characterized by 6 TM helices per subunit (domain), or a total of 12 TM helices for the complete transporter. The ABC exporters are found in both prokaryotes and eukaryotes, where they mediate the cellular secretion of toxic compounds and a various type of lipids. ABC transporters typically consist of two transmembrane domains (TMDs) and two nucleotide-binding domains (NBDs). The sequences and structures of the TMDs are quite varied between the different type of transporters, suggesting significant structural diversity of the translocated substrates, while NBDs are conserved among all ABC transporters. The two NBDs together bind and hydrolyze ATP, thereby providing the driving force for transport, while the TMDs participate in substrate recognition and translocation across the lipid membrane. However, some ABC genes are organized as half-transporters, which must form either homodimers or heterodimers to form a functional transporter. The ABC exporters play a role in multidrug resistance to antibiotics and anticancer agents, and mutations in these proteins have been shown to cause severe human diseases such as cystic fibrosis. Pssm-ID: 349987 [Multi-domain] Cd Length: 291 Bit Score: 109.11 E-value: 1.49e-26
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| ABC_6TM_PCAT1_LagD_like | cd18570 | Six-transmembrane helical domain (6-TMD) of the peptidase-containing ATP-binding cassette ... |
158-436 | 3.30e-24 | |||||
Six-transmembrane helical domain (6-TMD) of the peptidase-containing ATP-binding cassette transporters; This group includes the 6-TMD of the peptidase-containing ATP-binding cassette transporters (PCATs) such as Clostridium thermocellum PCAT1, a polypeptide processing and secretion transporter, and LagD, a bacteriocin ABC transporter from Lactococcus lactis. Bacterial exporters are typically formed by dimers of TMD-NBD half-transporters. Thus, most bacterial ABC transporters are formed of two identical TMDs and two identical NBDs. The transporters involved in protein secretion often contain additional peptidase domains essential for substrate processing. These peptidase domains belong to the cysteine protease superfamily, classified as family C39, bacteriocin-processing peptidase. LagD is highly similar to the peptidase-containing ATP-binding cassette transporters (PCATs). In Gram-positive bacteria, the PCATs are responsible for exporting quorum-sensing or antimicrobial peptides called bacteriocins. Pssm-ID: 350014 [Multi-domain] Cd Length: 294 Bit Score: 102.52 E-value: 3.30e-24
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| ABC_6TM_Pgp_ABCB1 | cd18558 | Six-transmembrane helical domain of P-glycoprotein 1 (Pgp) and related proteins; ... |
220-447 | 1.89e-21 | |||||
Six-transmembrane helical domain of P-glycoprotein 1 (Pgp) and related proteins; P-glycoprotein 1 (permeability glycoprotein, Pgp) also known as multidrug resistance protein 1 (MDR1) or ATP-binding cassette sub-family B member 1(ABCB1) is a member of the superfamily of ATP-binding cassette (ABC) transporters. Pgp acts as an ATP-dependent efflux pump, binds drugs with diverse chemical structures and pump them out of the drug resistant cancer cells. It is responsible for decreased drug accumulation in multidrug-resistant cells and mediates the development of resistance to anticancer drugs. Pgp consists of two alpha-helical transmembrane domains (TMDs) and two cytoplasmic nucleotide-binding domains (NBDs). This protein also functions as a transporter in the blood-brain barrier. In addition to Pgp, breast cancer resistance protein (BCRP/MXR/ABC-P/ABCG2) and multidrug resistance-associated proteins (MRP1/ABCC1 and MRP2/ABCC2) function as drug efflux pumps of anticancer drugs, and overexpression of these transporters induces multidrug resistance to a broad spectrum of anticancer drugs including doxorubicin, taxol, and vinca alkaloids by actively pumping the drugs out of cells. Pssm-ID: 350002 [Multi-domain] Cd Length: 312 Bit Score: 95.04 E-value: 1.89e-21
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| ABC_6TM_exporter_like | cd18565 | Six-transmembrane helical domain (TMD) of an uncharacterized ABC exporter, and similar ... |
171-438 | 2.00e-21 | |||||
Six-transmembrane helical domain (TMD) of an uncharacterized ABC exporter, and similar proteins; This group includes a subunit of six transmembrane (TM) helices typically found in the ATP-binding cassette (ABC) transporters that function as exporters, which contain 6 TM helices per subunit (domain), or a total of 12 TM helices for the complete transporter. The ABC exporters are found in both prokaryotes and eukaryotes, where they mediate the cellular secretion of toxic compounds and a various type of lipids. ABC transporters typically consist of two transmembrane domains (TMDs) and two nucleotide-binding domains (NBDs). The sequences and structures of the TMDs are quite varied between the different type of transporters, suggesting the chemical diversity of the translocated substrates, while NBDs are conserved among all ABC transporters. The two NBDs together bind and hydrolyze ATP, thereby providing the driving force for transport, while the TMDs participate in substrate recognition and translocation across the lipid membrane. However, some ABC genes are organized as half-transporters, which must form either homodimers or heterodimers to form a functional transporter. The ABC exporters play a role in multidrug resistance to antibiotics and anticancer agents, and mutations in these proteins have been shown to cause severe human diseases such as cystic fibrosis. Pssm-ID: 350009 [Multi-domain] Cd Length: 313 Bit Score: 94.94 E-value: 2.00e-21
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| ABC_6TM_CvaB_RaxB_like | cd18567 | Six-transmembrane helical domain (6-TMD) of the ABC transporter subunit of the type 1 ... |
183-438 | 1.00e-19 | |||||
Six-transmembrane helical domain (6-TMD) of the ABC transporter subunit of the type 1 secretion systems, CvaB and RaxB, and similar proteins; This group represents the six-transmembrane helical domain (6-TMD) of the peptidase-containing ABC transporter subunit of T1SS (Type 1 secretion systems), such as Escherichia coli colicin V secretion/processing ATP-binding protein CvaB and putative ABC transporter RaxB. These ABC-transporter proteins carry a proteolytic peptidase domain in their N-termini, termed as C39, which cleaves a double glycine (GG) motif-containing signal peptide from substrates before secretion. RaxB is part of the T1SS RaxABC, which is responsible for the type 1-dependent secretion of the bacterial quorum-sensing molecule AvrXa21. Both CvaB and RaxB belong to a subgroup of T1SS ABC transporters that contain a C39 peptidase domain. T1SS are found in pathogenic Gram-negative bacteria to export proteins (often proteases) across both inner and outer membranes to the extracellular medium. Pssm-ID: 350011 [Multi-domain] Cd Length: 294 Bit Score: 89.44 E-value: 1.00e-19
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| ABC_6TM_exporter_like | cd18540 | Six-transmembrane helical domain (TMD) of an uncharacterized ABC exporter, and similar ... |
168-438 | 6.54e-19 | |||||
Six-transmembrane helical domain (TMD) of an uncharacterized ABC exporter, and similar proteins; This group includes a subunit of six transmembrane (TM) helices typically found in the ATP-binding cassette (ABC) transporters that function as exporters, which contain 6 TM helices per subunit (domain), or a total of 12 TM helices for the complete transporter. The ABC exporters are found in both prokaryotes and eukaryotes, where they mediate the cellular secretion of toxic compounds and a various type of lipids. ABC transporters typically consist of two transmembrane domains (TMDs) and two nucleotide-binding domains (NBDs). The sequences and structures of the TMDs are quite varied between the different type of transporters, suggesting the chemical diversity of the translocated substrates, while NBDs are conserved among all ABC transporters. The two NBDs together bind and hydrolyze ATP, thereby providing the driving force for transport, while the TMDs participate in substrate recognition and translocation across the lipid membrane. However, some ABC genes are organized as half-transporters, which must form either homodimers or heterodimers to form a functional transporter. The ABC exporters play a role in multidrug resistance to antibiotics and anticancer agents, and mutations in these proteins have been shown to cause severe human diseases such as cystic fibrosis. Pssm-ID: 349984 [Multi-domain] Cd Length: 295 Bit Score: 87.15 E-value: 6.54e-19
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| ABC_6TM_Sav1866_like | cd18554 | Six-transmembrane helical domain of the bacterial ABC multidrug exporter Sav1866 and similar ... |
184-438 | 2.43e-18 | |||||
Six-transmembrane helical domain of the bacterial ABC multidrug exporter Sav1866 and similar proteins; This group represents the homodimeric bacterial ABC multidrug exporter Sav1866, which is homologous to the lipid flippase MsbA, and both of which are functionally related to the human P-glycoprotein multidrug transporter (ABCB1 or MDR1). This transmembrane (TM) subunit possesses the ATP-binding cassette (ABC) exporter fold, which is characterized by 6 TM helices per subunit (domain), or a total of 12 TM helices for the complete transporter. The ABC exporters are found in both prokaryotes and eukaryotes, where they mediate the cellular secretion of toxic compounds, a various type of lipids and polypeptides. ABC transporters typically consist of two transmembrane domains (TMDs) and two nucleotide-binding domains (NBDs). The sequences and structures of the TMDs are quite varied between the different type of transporters, suggesting significant structural diversity of the translocated substrates, while NBDs are conserved among all ABC transporters. The two NBDs together bind and hydrolyze ATP, thereby providing the driving force for transport, while the TMDs participate in substrate recognition and translocation across the lipid membrane by alternating between inward- and outward-facing conformations. Bacterial exporters are typically formed by dimers of TMD-NBD half-transporters. Thus, most bacterial ABC transporters are formed of two identical TMDs and two identical NBDs. Pssm-ID: 349998 [Multi-domain] Cd Length: 299 Bit Score: 85.55 E-value: 2.43e-18
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| ABC_6TM_PrtD_LapB_HlyB_like | cd18782 | uncharacterized subgroup of the six-transmembrane helical domain (6-TMD) of the ABC subunit in ... |
168-434 | 5.99e-18 | |||||
uncharacterized subgroup of the six-transmembrane helical domain (6-TMD) of the ABC subunit in the type 1 secretion systems (PrtD, LapB, HylB), and similar proteins; Uncharacterized subgroup of the six-transmembrane helical domain (6-TMD) of the ABC subunit in the type 1 secretion systems (T1SS), including PrtD, LapB, and HylB. T1SS are found in pathogenic Gram-negative bacteria (such as Escherichia coli, Vibrio cholerae or Bordetella pertussis) to export proteins (often proteases) across both inner and outer membranes to the extracellular medium. This is one of three proteins of the type 1 secretion apparatus. In the case of the Escherichia coli HlyA T1SS, these three proteins are HlyB (a dimeric ABC transporter), HlyD (MFP, oligomeric membrane fusion protein) and TolC (OMP, a trimeric oligomeric outer membrane protein). These three components assemble into a complex spanning both membranes and provide a channel for the translocation of unfolded polypeptides. In addition, PrtD is the integral membrane ATP-binding cassette component of the Erwinia chrysanthemi metalloprotease secretion system (PrtDEF). LabB is an inner-membrane transporter component of the LapBCE system that is required for the secretion of the LapA adhesion. Pssm-ID: 350055 [Multi-domain] Cd Length: 294 Bit Score: 84.18 E-value: 5.99e-18
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| ABC_6TM_CyaB_HlyB_like | cd18588 | Six-transmembrane helical domain of the ABC subunits of T1SS, CyaB/HylB, and similar proteins; ... |
188-438 | 8.23e-15 | |||||
Six-transmembrane helical domain of the ABC subunits of T1SS, CyaB/HylB, and similar proteins; This group represents the six-transmembrane helical domain (6-TMD) of the ABC subunits of T1SS, such as CyaG and HlyB. T1SS are found in pathogenic Gram-negative bacteria (such as Escherichia coli, Vibrio cholerae or Bordetella pertussis) to export proteins (often proteases) across both inner and outer membranes to the extracellular medium. This is one of three proteins of the type I secretion apparatus. In the case of the Escherichia coli HlyA T1SS, these three proteins are HlyB (a dimeric ABC transporter), HlyD (MFP, oligomeric membrane fusion protein) and TolC (OMP, a trimeric oligomeric outer membrane protein). These three components assemble into a complex spanning both membranes and provide a channel for the translocation of unfolded polypeptides. Additionally, CyaB is part of the three T1SS complex proteins for adenylate cyclase toxin CyaA, which is a primary virulence factor in Bordetella pertussis: CyaB (an ABC transporter) CyaD (a membrane fusion protein), and CyaE (an outer membrane protein). Pssm-ID: 350032 [Multi-domain] Cd Length: 294 Bit Score: 74.84 E-value: 8.23e-15
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| ABC_6TM_ABCC_D2 | cd18580 | Six-transmembrane helical domain 2 (TMD2) of the ABC transporters, subfamily C; This group ... |
171-383 | 1.21e-14 | |||||
Six-transmembrane helical domain 2 (TMD2) of the ABC transporters, subfamily C; This group represents the six-transmembrane domain 2 (TMD2) of the ABC transporters that belong to the ABCC subfamily, such as the sulphonylurea receptors SUR1/2 (ABCC8), the cystic fibrosis transmembrane conductance regulator (CFTR, ABCC7), Multidrug-Resistance associated Proteins (MRP1-9), VMR1 (vacuolar multidrug resistance protein 1), and YOR1 (yeast oligomycin resistance transporter protein). This TM subunit exhibits the type 3 ATP-binding cassette (ABC) exporter fold, which is characterized by 6 TM helices per subunit (domain), or a total of 12 TM helices for the complete transporter. The type 3 ABC exporters are found in both prokaryotes and eukaryotes, where they mediate the cellular secretion of toxic compounds, a various type of lipids and polypeptides. All ABC transporters share a common architecture of two transmembrane domains (TMDs) and two nucleotide-binding domains (NBDs). The two NBDs together bind and hydrolyze ATP, thereby providing the driving force for transport, while the TMDs participate in substrate recognition and translocation across the lipid membrane by alternating between inward- and outward-facing conformations. By contrast, bacterial ABC exporters are typically assembled from dimers of TMD-NBD half-transporters. Thus, most bacterial ABC transporters are comprised of two identical TMDs and two identical NBDs. Pssm-ID: 350024 [Multi-domain] Cd Length: 294 Bit Score: 74.46 E-value: 1.21e-14
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| ABC_6TM_HetC_like | cd18568 | Six-transmembrane helical domain (6-TMD) of the ABC subunit of T1SS-like HetC and similar ... |
183-436 | 4.35e-14 | |||||
Six-transmembrane helical domain (6-TMD) of the ABC subunit of T1SS-like HetC and similar proteins; This group represents the six-transmembrane helical domain (6-TMD) of the ABC subunit of T1SS (type 1 secretion systems), such as heterocyst differentiation protein HetC. HetC is similar to ABC protein exporters of T1SS (type 1 secretion systems) and is involved in early regulation of heterocyst differentiation in the filamentous cynobacterium Anabaena sp. T1SS are found in pathogenic Gram-negative bacteria (such as Escherichia coli, Vibrio cholerae or Bordetella pertussis) to export proteins (often proteases) across both inner and outer membranes to the extracellular medium. ABC-transporter proteins in this group carry a proteolytic peptidase domain in their N-termini, termed as C39, which cleaves a double glycine (GG) motif-containing signal peptide from substrates before secretion. Pssm-ID: 350012 [Multi-domain] Cd Length: 294 Bit Score: 72.59 E-value: 4.35e-14
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| PRK11176 | PRK11176 | lipid A ABC transporter ATP-binding protein/permease MsbA; |
239-415 | 1.11e-12 | |||||
lipid A ABC transporter ATP-binding protein/permease MsbA; Pssm-ID: 183016 [Multi-domain] Cd Length: 582 Bit Score: 70.43 E-value: 1.11e-12
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| ABC_6TM_T1SS_like | cd18555 | Six-transmembrane helical domain (6-TMD) of the ATP-binding cassette subunit in the type 1 ... |
169-438 | 9.26e-12 | |||||
Six-transmembrane helical domain (6-TMD) of the ATP-binding cassette subunit in the type 1 secretion systems, and similar proteins; This group represents the six-transmembrane helical domain (6-TMD) of the ABC subunit in the type 1 secretion systems (T1SS) and similar proteins. These transporter subunits include HylB, PrtD, CyaB, CvaB, RsaD, HasD, LipB, and LapB, among many others. T1SS are found in pathogenic Gram-negative bacteria (such as Escherichia coli, Vibrio cholerae or Bordetella pertussis) to export proteins (often proteases) across both inner and outer membranes to the extracellular medium. This is one of three proteins of the type I secretion apparatus. In the case of the Escherichia coli HlyA T1SS, these three proteins are HlyB (a dimeric ABC transporter), HlyD (MFP, oligomeric membrane fusion protein) and TolC (OMP, a trimeric oligomeric outer membrane protein). Most targeted proteins are not cleaved at the N terminus, but rather carry signals located toward the extreme C terminus to direct type I secretion. However, the 10 kDa Escherichia coli colicin V (CvaB) targets the ABC transporter using a cleaved, N-terminal signal sequence. Almost all transport substrates of the type I system have critical functions in attacking host cells either directly or by being essential for host colonization. The ABC-dependent T1SS transports various molecules, from ions, drugs, to proteins of various sizes up to 900 kDa. The molecules secreted vary in size from the small Escherichia coli peptide colicin V, (10 kDa) to the Pseudomonas fluorescens cell adhesion protein LapA of 520 kDa. The best characterized are the RTX toxins such as the adenylate cyclase (CyaA) toxin from Bordetella pertussis, the causative agent of whooping cough, and the lipases such as LipA. Type I secretion is also involved in export of non-protein substrates such as cyclic beta-glucans and polysaccharides. Pssm-ID: 349999 [Multi-domain] Cd Length: 294 Bit Score: 65.61 E-value: 9.26e-12
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| ABC_6TM_VMR1_D2_like | cd18604 | Six-transmembrane helical domain 2 (TMD2) of the yeast Vmr1p, Ybt1p and Nft1; ABCC subfamily; ... |
172-389 | 1.38e-11 | |||||
Six-transmembrane helical domain 2 (TMD2) of the yeast Vmr1p, Ybt1p and Nft1; ABCC subfamily; This group includes the six-transmembrane domain 2 (TMD2) of the yeast Vmr1p, Ybt1p and Nft1, all of which are ABC transporters of the MRP (multidrug resistance-associated protein) subfamily (ABCC). Yeast ABCC (also termed MRP/CFTR) subfamily includes six members (Ycf1p, Bpt1p, Ybt1p/Bat1p, Nft1p, Vmr1p, and Yor1p), of which three members (Ycf1p, Bpt1P and Yor1p) are not included here. While Yor1p, an oligomycin resistance ABC transporter, has been shown to localize to the plasma membrane, the other 4 members (Ycf1p, Bpt1p, Ybt1p/Bat1p, Nft1p and Vmr1p) have been shown to localize to the vacuolar membrane. Ybt1p is originally identified as a bile acid transporter and regulates membrane fusion through Ca2+ transport modulation. Ybt1p also plays a part in ade2 pigment transport. Moreover, Ybt1p has been recently shown to translocate phosphatidylcholine from the outer leaflet of the vacuole to the inner leaflet for degradation and choline recycling. Vmr1p, a vacuolar membrane protein, participates in the export of numerous growth inhibitors from the cell, such as cycloheximide, 2,4-dinitrophenole, cadmium and other toxic metals. Nft1p is not well-characterized, but it is proposed to be regulate Ycf1p, which is involved in heavy metal detoxification. Pssm-ID: 350048 [Multi-domain] Cd Length: 297 Bit Score: 65.18 E-value: 1.38e-11
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| bacteriocin_ABC | TIGR01193 | ABC-type bacteriocin transporter; This model describes ABC-type bacteriocin transporter. The ... |
177-434 | 6.24e-11 | |||||
ABC-type bacteriocin transporter; This model describes ABC-type bacteriocin transporter. The amino terminal domain (pfam03412) processes the N-terminal leader peptide from the bacteriocin while C-terminal domains resemble ABC transporter membrane protein and ATP-binding cassette domain. In general, bacteriocins are agents which are responsible for killing or inhibiting the closely related species or even different strains of the same species. Bacteriocins are usually encoded by bacterial plasmids. Bacteriocins are named after the species and hence in literature one encounters various names e.g., leucocin from Leuconostic geldium; pedicocin from Pedicoccus acidilactici; sakacin from Lactobacillus sake etc. [Protein fate, Protein and peptide secretion and trafficking, Protein fate, Protein modification and repair, Transport and binding proteins, Other] Pssm-ID: 130261 [Multi-domain] Cd Length: 708 Bit Score: 64.76 E-value: 6.24e-11
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| PRK10790 | PRK10790 | SmdB family multidrug efflux ABC transporter permease/ATP-binding protein; |
155-437 | 1.19e-10 | |||||
SmdB family multidrug efflux ABC transporter permease/ATP-binding protein; Pssm-ID: 182733 [Multi-domain] Cd Length: 592 Bit Score: 63.97 E-value: 1.19e-10
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| ABC_6TM_PrtD_LapB_HlyB_like | cd18566 | Six-transmembrane helical domain (6-TMD) of the ABC subunit in the type 1 secretion systems ... |
183-436 | 2.16e-10 | |||||
Six-transmembrane helical domain (6-TMD) of the ABC subunit in the type 1 secretion systems (PrtD, LapB, HylB), and similar proteins; This group represents the six-transmembrane helical domain (6-TMD) of the ABC subunit in the type 1 secretion systems (T1SS), including PrtD, LapB, and HylB. T1SS are found in pathogenic Gram-negative bacteria (such as Escherichia coli, Vibrio cholerae or Bordetella pertussis) to export proteins (often proteases) across both inner and outer membranes to the extracellular medium. This is one of three proteins of the type 1 secretion apparatus. In the case of the Escherichia coli HlyA T1SS, these three proteins are HlyB (a dimeric ABC transporter), HlyD (MFP, oligomeric membrane fusion protein) and TolC (OMP, a trimeric oligomeric outer membrane protein). These three components assemble into a complex spanning both membranes and provide a channel for the translocation of unfolded polypeptides. In addition, PrtD is the integral membrane ATP-binding cassette component of the Erwinia chrysanthemi metalloprotease secretion system (PrtDEF). LabB is an inner-membrane transporter component of the LapBCE system that is required for the secretion of the LapA adhesion. Pssm-ID: 350010 [Multi-domain] Cd Length: 294 Bit Score: 61.83 E-value: 2.16e-10
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| ABC_6TM_ATM1_ABCB7 | cd18582 | Six-transmembrane helical domain of the Atm1/ABC7 transporters; This group represents the Atm1 ... |
174-431 | 7.87e-10 | |||||
Six-transmembrane helical domain of the Atm1/ABC7 transporters; This group represents the Atm1/ABCB7 subfamily of ATP Binding Cassette (ABC) transporters that are involved in transition metal homeostasis and detoxification processes. Yeast ATM1 and human ABCB7 (ABC transporter subfamily B, member 7), which are involved in the assembly of cytosolic iron-sulfur (Fe/S) cluster-containing proteins by mediating export of Fe/S cluster precursors from mitochondria. In eukaryotes, the Atm1/ABCB7 is present in the inner membrane of mitochondria and is required for the formation of cytosolic iron sulfur cluster containing proteins; mutations of ABCB7 gene result in mitochondrial iron accumulation and are responsible for X-linked sideroblastic anemia. Pssm-ID: 350026 [Multi-domain] Cd Length: 292 Bit Score: 59.82 E-value: 7.87e-10
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| PRK10789 | PRK10789 | SmdA family multidrug ABC transporter permease/ATP-binding protein; |
232-437 | 2.69e-09 | |||||
SmdA family multidrug ABC transporter permease/ATP-binding protein; Pssm-ID: 182732 [Multi-domain] Cd Length: 569 Bit Score: 59.34 E-value: 2.69e-09
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| ABC_6TM_MRP1_2_3_6_D2_like | cd18603 | Six-transmembrane helical domain 2 (TMD2) of multidrug resistance-associated proteins (MRPs) 1, ... |
175-413 | 5.67e-09 | |||||
Six-transmembrane helical domain 2 (TMD2) of multidrug resistance-associated proteins (MRPs) 1, 2, 3 and 6; This group represents the six-transmembrane domain 2 (TMD2) of multidrug resistance-associated proteins (MRPs) 1, 2, 3 and 6, all of which are belonging to the subfamily C of the ATP-binding cassette (ABC) transporter superfamily. The MRP subfamily (ABCC subfamily) is composed of 13 members, of which MRP1 to MRP9 are the major transporters that cause multidrug resistance in tumor cells by pumping anticancer drugs out of the cell. These nine MRP members function as ATP-dependent exporters for endogenous substances and xenobiotics. MRP family can be divided into two groups, depending on their structural architecture. MRP4, MRP5, MRP8, and MRP9 (ABCC4, 5, 11 and 12, respectively) have a typical ABC transporter structure and each composed of two transmembrane domains (TMD1 and TMD2) and two nucleotide domains (NBD1 and NBD2). On the other hand, MRP1, 2, 3, 6 and 7 (ABCC1, 2, 3, 6 and 7, respectively) have an additional N-terminal five transmembrane segments in a single domain (TMD0) connected to the core (TMD-NBD) by a cytoplasmic linker (L0). Pssm-ID: 350047 [Multi-domain] Cd Length: 296 Bit Score: 57.49 E-value: 5.67e-09
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| ABC_6TM_ABCC_D1 | cd18579 | Six-transmembrane helical domain 1 (TMD1) of the ABC transporters, subfamily C; This group ... |
174-414 | 6.78e-09 | |||||
Six-transmembrane helical domain 1 (TMD1) of the ABC transporters, subfamily C; This group represents the six-transmembrane domain 1 (TMD1)of the ABC transporters that belong to the ABCC subfamily, such as the sulphonylurea receptors SUR1/2 (ABCC8), the cystic fibrosis transmembrane conductance regulator (CFTR, ABCC7), Multidrug-Resistance associated Proteins (MRP1-9), VMR1 (vacuolar multidrug resistance protein 1), and YOR1 (yeast oligomycin resistance transporter protein). This TM subunit exhibits the type 3 ATP-binding cassette (ABC) exporter fold, which is characterized by 6 TM helices per subunit (domain), or a total of 12 TM helices for the complete transporter. The type 3 ABC exporters are found in both prokaryotes and eukaryotes, where they mediate the cellular secretion of toxic compounds, a various type of lipids and polypeptides. ABC transporters typically consist of two transmembrane domains (TMDs) and two nucleotide-binding domains (NBDs). The two NBDs together bind and hydrolyze ATP, thereby providing the driving force for transport, while the TMDs participate in substrate recognition and translocation across the lipid membrane by alternating between inward- and outward-facing conformations. By contrast, bacterial ABC exporters are typically assembled from dimers of TMD-NBD half-transporters. Thus, most bacterial ABC transporters are comprised of two identical TMDs and two identical NBDs. Pssm-ID: 350023 [Multi-domain] Cd Length: 289 Bit Score: 57.11 E-value: 6.78e-09
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| ABC_6TM_PrtD_LapB_HlyB_like | cd18783 | uncharacterized subgroup of the six-transmembrane helical domain (6-TMD) of the ABC subunit in ... |
169-438 | 4.98e-08 | |||||
uncharacterized subgroup of the six-transmembrane helical domain (6-TMD) of the ABC subunit in the type 1 secretion systems (PrtD, LapB, HylB), and similar proteins; Uncharacterized subgroup of the six-transmembrane helical domain (6-TMD) of the ABC subunit in the type 1 secretion systems (T1SS), including PrtD, LapB, and HylB. T1SS are found in pathogenic Gram-negative bacteria (such as Escherichia coli, Vibrio cholerae or Bordetella pertussis) to export proteins (often proteases) across both inner and outer membranes to the extracellular medium. This is one of three proteins of the type 1 secretion apparatus. In the case of the Escherichia coli HlyA T1SS, these three proteins are HlyB (a dimeric ABC transporter), HlyD (MFP, oligomeric membrane fusion protein) and TolC (OMP, a trimeric oligomeric outer membrane protein). These three components assemble into a complex spanning both membranes and provide a channel for the translocation of unfolded polypeptides. In addition, PrtD is the integral membrane ATP-binding cassette component of the Erwinia chrysanthemi metalloprotease secretion system (PrtDEF). LabB is an inner-membrane transporter component of the LapBCE system that is required for the secretion of the LapA adhesion. Pssm-ID: 350056 [Multi-domain] Cd Length: 294 Bit Score: 54.44 E-value: 4.98e-08
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| ABC_6TM_MRP7_D2_like | cd18605 | Six-transmembrane helical domain 2 (TMD2) of multidrug resistance-associated protein 7, and ... |
221-383 | 3.50e-07 | |||||
Six-transmembrane helical domain 2 (TMD2) of multidrug resistance-associated protein 7, and similar proteins; This group represents the six-transmembrane domain 2 (TMD2) of multidrug resistance-associated protein 7 (MRP7), which belongs to the subfamily C of the ATP-binding cassette (ABC) transporter superfamily. The MRP subfamily (ABCC subfamily) is composed of 13 members, of which MRP1 to MRP9 are the major transporters that cause multidrug resistance in tumor cells by pumping anticancer drugs out of the cell. These nine MRP members function as ATP-dependent exporters for endogenous substances and xenobiotics. MRP family can be divided into two groups, depending on their structural architecture. MRP4, MRP5, MRP8, and MRP9 (ABCC4, 5, 11 and 12, respectively) have a typical ABC transporter structure and each composed of two transmembrane domains (TMD1 and TMD2) and two nucleotide domains (NBD1 and NBD2). On the other hand, MRP1, 2, 3, 6 and 7 (ABCC1, 2, 3, 6 and 7, respectively) have an additional N-terminal five transmembrane segments in a single domain (TMD0) connected to the core (TMD-NBD) by a cytoplasmic linker (L0). Pssm-ID: 350049 [Multi-domain] Cd Length: 300 Bit Score: 51.76 E-value: 3.50e-07
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| ABC_6TM_SUR1_D2_like | cd18602 | Six-transmembrane helical domain 2 (TMD2) of the sulphonylurea receptors SUR1/2; This group ... |
216-382 | 1.85e-06 | |||||
Six-transmembrane helical domain 2 (TMD2) of the sulphonylurea receptors SUR1/2; This group represents the six-transmembrane domain 2 (TMD2) of the sulphonylurea receptors SUR1/2 (ABCC8), which function as a modulator of ATP-sensitive potassium channels and insulin release, and belong to the ABCC subfamily. The ATP-sensitive (K-ATP) channel is an octameric complex of four pore-forming Kir6.2 subunits and four regulatory SUR subunits. Thus, in contrast to other ABC transporters, the SUR serves as the regulatory subunit of an ion channel. Mutations and deficiencies in the SUR proteins have been observed in patients with hyperinsulinemic hypoglycemia of infancy, an autosomal recessive disorder of unregulated and high insulin secretion. Mutations have also been associated with non-insulin-dependent diabetes mellitus type 2, an autosomal dominant disease of defective insulin secretion. Pssm-ID: 350046 [Multi-domain] Cd Length: 307 Bit Score: 49.91 E-value: 1.85e-06
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| ABC_6TM_ATM1_ABCB7_HMT1_ABCB6 | cd18560 | Six-transmembrane helical domain (6-TMD) of the Atm1/ABCB7/HMT1/ABCB6 subfamily; This group ... |
174-390 | 3.32e-06 | |||||
Six-transmembrane helical domain (6-TMD) of the Atm1/ABCB7/HMT1/ABCB6 subfamily; This group represents the Atm1/ABCB7/HMT1/ABCB6 subfamily of ATP Binding Cassette (ABC) transporters that are involved in transition metal homeostasis and detoxification processes. Yeast ATM1 and human ABCB7 (ABC transporter subfamily B, member 7), which are involved in the assembly of cytosolic iron-sulfur (Fe/S) cluster-containing proteins by mediating export of Fe/S cluster precursors from mitochondria. In eukaryotes, the Atm1/ABCB7 is present in the inner membrane of mitochondria and is required for the formation of cytosolic iron sulfur cluster containing proteins; mutations of ABCB7 gene result in mitochondrial iron accumulation and are responsible for X-linked sideroblastic anemia. ABCB6 is originally identified as a porphyrin transporter present in the outer membrane of mitochondria. It is highly expressed in cells resistance to arsenic and protects against arsenic cytotoxicity. Moreover, Heavy Metal Tolerance Factor-1 (HMT1) proteins are required for cadmium resistance in Caenorhabditis elegans and Drosophila melanogaster. Pssm-ID: 350004 [Multi-domain] Cd Length: 292 Bit Score: 48.76 E-value: 3.32e-06
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| ABC_6TM_McjD_like | cd18556 | Six-transmembrane helical domain of the antibacterial peptide ATP-binding cassette transporter ... |
169-290 | 8.97e-06 | |||||
Six-transmembrane helical domain of the antibacterial peptide ATP-binding cassette transporter McjD and similar proteins; This group represents the 6-TM subunit of the ABC transporter McjD that exports the antibacterial peptide microcin J25, which is an antimicrobial peptide produced by Enterobacteriaceae against other microorganisms for survival under nutrient starvation. Thus, the ABC exporter McjD provides self-immunity of the producing bacteria through export of the toxic peptide out of the cell. Bacterial ABC exporters are typically expressed as half-transporters that contain one transmembrane domain (TMD) fused to a nucleotide-binding domain (NBD), which dimerize to form the full transporter. Pssm-ID: 350000 Cd Length: 298 Bit Score: 47.63 E-value: 8.97e-06
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| ABC_6TM_MRP4_D2_like | cd18601 | Six-transmembrane helical domain 2 (TMD2) of multidrug resistance-associated protein 4 (MRP4) ... |
217-335 | 5.20e-05 | |||||
Six-transmembrane helical domain 2 (TMD2) of multidrug resistance-associated protein 4 (MRP4) and similar proteins; This group represents the six-transmembrane domain 2 (TMD2) of multidrug resistance-associated protein 4 (MRP4), which belongs to the subfamily C of the ATP-binding cassette (ABC) transporter superfamily. The MRP subfamily (ABCC subfamily) is composed of 13 members, of which MRP1 to MRP9 are the major transporters that cause multidrug resistance in tumor cells by pumping anticancer drugs out of the cell. These nine MRP members function as ATP-dependent exporters for endogenous substances and xenobiotics. MRP family can be divided into two groups, depending on their structural architecture. MRP4, MRP5, MRP8, and MRP9 (ABCC4, 5, 11 and 12, respectively) have a typical ABC transporter structure and each composed of two transmembrane domains (TMD1 and TMD2) and two nucleotide domains (NBD1 and NBD2). On the other hand, MRP1, 2, 3, 6 and 7 (ABCC1, 2, 3, 6 and 7, respectively) have an additional N-terminal five transmembrane segments in a single domain (TMD0) connected to the core (TMD-NBD) by a cytoplasmic linker (L0). Pssm-ID: 350045 [Multi-domain] Cd Length: 314 Bit Score: 45.39 E-value: 5.20e-05
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| MRP_assoc_pro | TIGR00957 | multi drug resistance-associated protein (MRP); This model describes multi drug ... |
172-382 | 6.61e-05 | |||||
multi drug resistance-associated protein (MRP); This model describes multi drug resistance-associated protein (MRP) in eukaryotes. The multidrug resistance-associated protein is an integral membrane protein that causes multidrug resistance when overexpressed in mammalian cells. It belongs to ABC transporter superfamily. The protein topology and function was experimentally demonstrated by epitope tagging and immunofluorescence. Insertion of tags in the critical regions associated with drug efflux, abrogated its function. The C-terminal domain seem to highly conserved. [Transport and binding proteins, Other] Pssm-ID: 188098 [Multi-domain] Cd Length: 1522 Bit Score: 45.71 E-value: 6.61e-05
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| ABC_6TM_AarD_CydDC_like | cd18561 | Six-transmembrane helical domain (6-TMD) of the ABC cysteine/GSH transporter CydDC, and ... |
172-439 | 8.35e-05 | |||||
Six-transmembrane helical domain (6-TMD) of the ABC cysteine/GSH transporter CydDC, and similar proteins; The CydD protein, together with the CydC protein, constitutes a bacterial heterodimeric ATP-binding cassette (ABC) transporter complex required for formation of the functional cytochrome bd oxidase in both gram-positive and gram-negative aerobic bacteria. In Escherichia coli, the biogenesis of both cytochrome bd-type quinol oxidases and periplasmic cytochromes requires the ABC-type cysteine/GSH transporter CydDC, which exports cysteine and glutathione from the cytoplasm to the periplasm to maintain redox homeostasis. Mutations in AarD, a homolog from Providencia stuartii, also show phenotypic characteristic consistent with a defect in the cytochrome d oxidase. The CydDC forms a heterodimeric ABC transporter with two transmembrane domains (TMDs), each predicted to comprise six TM alpha-helices and two nucleotide binding domains (NBDs). Pssm-ID: 350005 [Multi-domain] Cd Length: 289 Bit Score: 44.58 E-value: 8.35e-05
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| ABC_6TM_MRP5_8_9_D2 | cd18599 | Six-transmembrane helical domain 2 (TMD2) of multidrug resistance-associated proteins (MRPs) 5, ... |
217-383 | 1.07e-04 | |||||
Six-transmembrane helical domain 2 (TMD2) of multidrug resistance-associated proteins (MRPs) 5, 8, and 9; This group represents the six-transmembrane domain 2 (TMD2) of multidrug resistance-associated proteins (MRPs) 5, 8, and 9, all of which are belonging to the subfamily C of the ATP-binding cassette (ABC) transporter superfamily. The MRP subfamily (ABCC subfamily) is composed of 13 members, of which MRP1 to MRP9 are the major transporters that cause multidrug resistance in tumor cells by pumping anticancer drugs out of the cell. These nine MRP members function as ATP-dependent exporters for endogenous substances and xenobiotics. MRP family can be divided into two groups, depending on their structural architecture. MRP4, MRP5, MRP8, and MRP9 (ABCC4, 5, 11 and 12, respectively) have a typical ABC transporter structure and each composed of two transmembrane domains (TMD1 and TMD2) and two nucleotide domains (NBD1 and NBD2). On the other hand, MRP1, 2, 3, 6 and 7 (ABCC1, 2, 3, 6 and 7, respectively) have an additional N-terminal five transmembrane segments in a single domain (TMD0) connected to the core (TMD-NBD) by a cytoplasmic linker (L0). Pssm-ID: 350043 [Multi-domain] Cd Length: 313 Bit Score: 44.09 E-value: 1.07e-04
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| ABC_6TM_PrtD_like | cd18586 | Six-transmembrane helical domain (6TM) domain of the ABC subunit (PrtD) in the T1SS ... |
168-431 | 2.35e-04 | |||||
Six-transmembrane helical domain (6TM) domain of the ABC subunit (PrtD) in the T1SS metalloprotease secretion system, and similar proteins; This group represents the six-transmembrane helical domain (6-TMD) of the ABC subunit in the type 1 secretion systems (T1SS) such as PrtD, which is the integral membrane ATP-binding cassette component of the Erwinia chrysanthemi metalloprotease secretion system (PrtDEF). T1SS are found in pathogenic Gram-negative bacteria (such as Escherichia coli, Vibrio cholerae or Bordetella pertussis) to export proteins (often proteases) across both inner and outer membranes to the extracellular medium. This is one of three proteins of the type I secretion apparatus. The Aquifex aeolicus PrtDEF of T1SS is composed of an inner-membrane ABC transporter (PrtD), a periplasmic membrane-fusion protein (PrtE), and an outer-membrane porin (PrtF). These three components assemble into complex spanning both membranes and provide a channel for the translocation of unfolded polypeptides Pssm-ID: 350030 [Multi-domain] Cd Length: 291 Bit Score: 42.98 E-value: 2.35e-04
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| PLN03232 | PLN03232 | ABC transporter C family member; Provisional |
234-367 | 2.67e-04 | |||||
ABC transporter C family member; Provisional Pssm-ID: 215640 [Multi-domain] Cd Length: 1495 Bit Score: 43.81 E-value: 2.67e-04
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| ABC_6TM_YOR1_D2_like | cd18606 | Six-transmembrane helical domain 2 (TMD2) of the yeast Yor1p and similar proteins; ABCC ... |
218-337 | 2.77e-04 | |||||
Six-transmembrane helical domain 2 (TMD2) of the yeast Yor1p and similar proteins; ABCC subfamily; This group includes the six-transmembrane domain 1 (TMD1) of the yeast Yor1p, an oligomycin resistance ABC transporter, and similar proteins. Members of this group belong to the MRP (multidrug resistance-associated protein) subfamily (ABCC). In addition to Yor1p, yeast ABCC (also termed MRP/CFTR) subfamily also comprises five other members (Ycf1p, Bpt1p, Ybt1p/Bat1p, Nft1p, and Vmr1p), which are not included in this group. Yor1p is a plasma membrane ATP-binding transporter that mediates export of many different organic anions including oligomycin. While Yor1p has been shown to localize to the plasma membrane, the other 4 members (Ycf1p, Bpt1p, Ybt1p/Bat1p, Nft1p and Vmr1p) have been shown to localize to the vacuolar membrane. Pssm-ID: 350050 [Multi-domain] Cd Length: 290 Bit Score: 42.85 E-value: 2.77e-04
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| PTZ00243 | PTZ00243 | ABC transporter; Provisional |
209-384 | 5.19e-04 | |||||
ABC transporter; Provisional Pssm-ID: 240327 [Multi-domain] Cd Length: 1560 Bit Score: 42.84 E-value: 5.19e-04
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| ABC_6TM_CFTR_D1 | cd18594 | Six-transmembrane helical domain 1 of Cystic Fibrosis Transmembrane Conductance Regulator; ... |
177-419 | 5.36e-04 | |||||
Six-transmembrane helical domain 1 of Cystic Fibrosis Transmembrane Conductance Regulator; This group represents the six-transmembrane domain 1 (TMD1) of the cystic fibrosis transmembrane conductance regulator (CFTR, ABCC7), which belongs to the ABCC subfamily. CFTR functions as a chloride channel, in contrast to other ABC transporters, and controls ion and water secretion and absorption in epithelial tissues. ABC proteins are formed from two homologous halves each containing a transmembrane domain (TMD) and a cytosolic nucleotide binding domain (NBD). In CFTR, these two TMD-NBD halves are linked by the unique regulatory (R) domain, which is not present in other ABC transporters. The ion channel only opens when its R-domain is phosphorylated by cyclic AMP-dependent protein kinase (PKA) and ATP is bound at the NBDs. Mutations in CFTR cause cystic fibrosis, the most common lethal genetic disorder in populations of Northern European descent. Pssm-ID: 350038 [Multi-domain] Cd Length: 291 Bit Score: 41.85 E-value: 5.36e-04
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| ABC_6TM_T1SS_like | cd18779 | uncharacterized subgroup of the six-transmembrane helical domain (6-TMD) of the ATP-binding ... |
211-438 | 5.80e-04 | |||||
uncharacterized subgroup of the six-transmembrane helical domain (6-TMD) of the ATP-binding cassette subunit in the type 1 secretion systems, and similar proteins; uncharacterized subgroup of the six-transmembrane helical domain (6-TMD) of the ABC subunit in the type 1 secretion systems (T1SS) and similar proteins. These transporter subunits include HylB, PrtD, CyaB, CvaB, RsaD, HasD, LipB, and LapB, among many others. T1SS are found in pathogenic Gram-negative bacteria (such as Escherichia coli, Vibrio cholerae or Bordetella pertussis) to export proteins (often proteases) across both inner and outer membranes to the extracellular medium. This is one of three proteins of the type I secretion apparatus. In the case of the Escherichia coli HlyA T1SS, these three proteins are HlyB (a dimeric ABC transporter), HlyD (MFP, oligomeric membrane fusion protein) and TolC (OMP, a trimeric oligomeric outer membrane protein). Most targeted proteins are not cleaved at the N terminus, but rather carry signals located toward the extreme C terminus to direct type I secretion. However, the 10 kDa Escherichia coli colicin V (CvaB) targets the ABC transporter using a cleaved, N-terminal signal sequence. Almost all transport substrates of the type I system have critical functions in attacking host cells either directly or by being essential for host colonization. The ABC-dependent T1SS transports various molecules, from ions, drugs, to proteins of various sizes up to 900 kDa. The molecules secreted vary in size from the small Escherichia coli peptide colicin V, (10 kDa) to the Pseudomonas fluorescens cell adhesion protein LapA of 520 kDa. The best characterized are the RTX toxins such as the adenylate cyclase (CyaA) toxin from Bordetella pertussis, the causative agent of whooping cough, and the lipases such as LipA. Type I secretion is also involved in export of non-protein substrates such as cyclic beta-glucans and polysaccharides. Pssm-ID: 350052 [Multi-domain] Cd Length: 294 Bit Score: 41.76 E-value: 5.80e-04
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| ABC_6TM_MRP7_D1_like | cd18598 | Six-transmembrane helical domain 1 (TMD1) of multidrug resistance-associated protein 7, and ... |
176-279 | 3.01e-03 | |||||
Six-transmembrane helical domain 1 (TMD1) of multidrug resistance-associated protein 7, and similar proteins; This group represents the six-transmembrane domain 1 (TMD1) of multidrug resistance-associated protein 7 (MRP7), which belongs to the subfamily C of the ATP-binding cassette (ABC) transporter superfamily. The MRP subfamily (ABCC subfamily) is composed of 13 members, of which MRP1 to MRP9 are the major transporters that cause multidrug resistance in tumor cells by pumping anticancer drugs out of the cell. These nine MRP members function as ATP-dependent exporters for endogenous substances and xenobiotics. MRP family can be divided into two groups, depending on their structural architecture. MRP4, MRP5, MRP8, and MRP9 (ABCC4, 5, 11 and 12, respectively) have a typical ABC transporter structure and each composed of two transmembrane domains (TMD1 and TMD2) and two nucleotide domains (NBD1 and NBD2). On the other hand, MRP1, 2, 3, 6 and 7 (ABCC1, 2, 3, 6 and 7, respectively) have an additional N-terminal five transmembrane segments in a single domain (TMD0) connected to the core (TMD-NBD) by a cytoplasmic linker (L0). Pssm-ID: 350042 [Multi-domain] Cd Length: 288 Bit Score: 39.46 E-value: 3.01e-03
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