inactive phospholipase D5 isoform 1 [Mus musculus]
phospholipase D-like domain-containing protein; phosphatidylserine/phosphatidylglycerophosphate/cardiolipin synthase family protein( domain architecture ID 10173695)
phospholipase D-like domain-containing protein may hydrolyze phospholipid phosphodiester bonds to yield phosphatidic acid and a free polar head group, and may also catalyze the transphosphatidylation of phospholipids to acceptor alcohols| phosphatidylserine/phosphatidylglycerophosphate/cardiolipin synthase family protein similar to cardiolipin synthase B, which catalyzes the formation of cardiolipin and whose substrates have not been definitively established
List of domain hits
Name | Accession | Description | Interval | E-value | ||||
PLDc_vPLD5_2 | cd09149 | Putative catalytic domain, repeat 2, of inactive veterbrate phospholipase PLD5; Putative ... |
309-502 | 8.53e-122 | ||||
Putative catalytic domain, repeat 2, of inactive veterbrate phospholipase PLD5; Putative catalytic domain, repeat 2, of inactive veterbrate phospholipases D5 (PLD5, EC 3.1.4.4), homologs of the vaccinia virus protein K4 encoded by the HindIII K4L gene. Vertebrate PLD5 has been assigned to the PLD superfamily, since it shows high sequence similarity to other human homologs of protein K4, which contain two copies of the conserved HKD motif (H-x-K-x(4)-D, where x represents any amino acid residue). However, due to the lack of functionally important histidine and lysine residues in the HKD motif, vetebrate PLD5 has been characterized as an inactive PLD. : Pssm-ID: 197247 Cd Length: 188 Bit Score: 355.32 E-value: 8.53e-122
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PLDc_vPLD5_1 | cd09146 | Putative catalytic domain, repeat 1, of inactive veterbrate phospholipase PLD5; Putative ... |
111-273 | 2.16e-107 | ||||
Putative catalytic domain, repeat 1, of inactive veterbrate phospholipase PLD5; Putative catalytic domain, repeat 1, of inactive veterbrate phospholipases D5 (PLD5, EC 3.1.4.4), homologs of the vaccinia virus protein K4 encoded by the HindIII K4L gene. Vertebrate PLD5 has been assigned to the PLD superfamily, since it shows high sequence similarity to other human homologs of protein K4, which contain two copies of the conserved HKD motif (H-x-K-x(4)-D, where x represents any amino acid residue). However, due to the lack of functionally important histidine and lysine residues in the HKD motif, vetebrate PLD5 has been characterized as an inactive PLD. : Pssm-ID: 197244 [Multi-domain] Cd Length: 163 Bit Score: 317.57 E-value: 2.16e-107
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Name | Accession | Description | Interval | E-value | |||||||
PLDc_vPLD5_2 | cd09149 | Putative catalytic domain, repeat 2, of inactive veterbrate phospholipase PLD5; Putative ... |
309-502 | 8.53e-122 | |||||||
Putative catalytic domain, repeat 2, of inactive veterbrate phospholipase PLD5; Putative catalytic domain, repeat 2, of inactive veterbrate phospholipases D5 (PLD5, EC 3.1.4.4), homologs of the vaccinia virus protein K4 encoded by the HindIII K4L gene. Vertebrate PLD5 has been assigned to the PLD superfamily, since it shows high sequence similarity to other human homologs of protein K4, which contain two copies of the conserved HKD motif (H-x-K-x(4)-D, where x represents any amino acid residue). However, due to the lack of functionally important histidine and lysine residues in the HKD motif, vetebrate PLD5 has been characterized as an inactive PLD. Pssm-ID: 197247 Cd Length: 188 Bit Score: 355.32 E-value: 8.53e-122
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PLDc_3 | pfam13918 | PLD-like domain; |
242-421 | 7.16e-108 | |||||||
PLD-like domain; Pssm-ID: 464040 Cd Length: 180 Bit Score: 319.65 E-value: 7.16e-108
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PLDc_vPLD5_1 | cd09146 | Putative catalytic domain, repeat 1, of inactive veterbrate phospholipase PLD5; Putative ... |
111-273 | 2.16e-107 | |||||||
Putative catalytic domain, repeat 1, of inactive veterbrate phospholipase PLD5; Putative catalytic domain, repeat 1, of inactive veterbrate phospholipases D5 (PLD5, EC 3.1.4.4), homologs of the vaccinia virus protein K4 encoded by the HindIII K4L gene. Vertebrate PLD5 has been assigned to the PLD superfamily, since it shows high sequence similarity to other human homologs of protein K4, which contain two copies of the conserved HKD motif (H-x-K-x(4)-D, where x represents any amino acid residue). However, due to the lack of functionally important histidine and lysine residues in the HKD motif, vetebrate PLD5 has been characterized as an inactive PLD. Pssm-ID: 197244 [Multi-domain] Cd Length: 163 Bit Score: 317.57 E-value: 2.16e-107
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PHA02820 | PHA02820 | phospholipase-D-like protein; Provisional |
104-507 | 3.62e-81 | |||||||
phospholipase-D-like protein; Provisional Pssm-ID: 222934 [Multi-domain] Cd Length: 424 Bit Score: 259.93 E-value: 3.62e-81
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Cls | COG1502 | Phosphatidylserine/phosphatidylglycerophosphate/cardiolipin synthase [Lipid transport and ... |
132-494 | 1.61e-11 | |||||||
Phosphatidylserine/phosphatidylglycerophosphate/cardiolipin synthase [Lipid transport and metabolism]; Phosphatidylserine/phosphatidylglycerophosphate/cardiolipin synthase is part of the Pathway/BioSystem: Phospholipid biosynthesis Pssm-ID: 441111 [Multi-domain] Cd Length: 367 Bit Score: 65.73 E-value: 1.61e-11
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PLDc_2 | pfam13091 | PLD-like domain; |
138-267 | 1.85e-06 | |||||||
PLD-like domain; Pssm-ID: 463784 [Multi-domain] Cd Length: 132 Bit Score: 47.29 E-value: 1.85e-06
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Cls | COG1502 | Phosphatidylserine/phosphatidylglycerophosphate/cardiolipin synthase [Lipid transport and ... |
131-268 | 2.37e-05 | |||||||
Phosphatidylserine/phosphatidylglycerophosphate/cardiolipin synthase [Lipid transport and metabolism]; Phosphatidylserine/phosphatidylglycerophosphate/cardiolipin synthase is part of the Pathway/BioSystem: Phospholipid biosynthesis Pssm-ID: 441111 [Multi-domain] Cd Length: 367 Bit Score: 46.47 E-value: 2.37e-05
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PLDc | smart00155 | Phospholipase D. Active site motifs; Phosphatidylcholine-hydrolyzing phospholipase D (PLD) ... |
215-242 | 1.12e-04 | |||||||
Phospholipase D. Active site motifs; Phosphatidylcholine-hydrolyzing phospholipase D (PLD) isoforms are activated by ADP-ribosylation factors (ARFs). PLD produces phosphatidic acid from phosphatidylcholine, which may be essential for the formation of certain types of transport vesicles or may be constitutive vesicular transport to signal transduction pathways. PC-hydrolysing PLD is a homologue of cardiolipin synthase, phosphatidylserine synthase, bacterial PLDs, and viral proteins. Each of these appears to possess a domain duplication which is apparent by the presence of two motifs containing well-conserved histidine, lysine, aspartic acid, and/or asparagine residues which may contribute to the active site. An E. coli endonuclease (nuc) and similar proteins appear to be PLD homologues but possess only one of these motifs. The profile contained here represents only the putative active site regions, since an accurate multiple alignment of the repeat units has not been achieved. Pssm-ID: 197546 [Multi-domain] Cd Length: 28 Bit Score: 39.30 E-value: 1.12e-04
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Name | Accession | Description | Interval | E-value | |||||||
PLDc_vPLD5_2 | cd09149 | Putative catalytic domain, repeat 2, of inactive veterbrate phospholipase PLD5; Putative ... |
309-502 | 8.53e-122 | |||||||
Putative catalytic domain, repeat 2, of inactive veterbrate phospholipase PLD5; Putative catalytic domain, repeat 2, of inactive veterbrate phospholipases D5 (PLD5, EC 3.1.4.4), homologs of the vaccinia virus protein K4 encoded by the HindIII K4L gene. Vertebrate PLD5 has been assigned to the PLD superfamily, since it shows high sequence similarity to other human homologs of protein K4, which contain two copies of the conserved HKD motif (H-x-K-x(4)-D, where x represents any amino acid residue). However, due to the lack of functionally important histidine and lysine residues in the HKD motif, vetebrate PLD5 has been characterized as an inactive PLD. Pssm-ID: 197247 Cd Length: 188 Bit Score: 355.32 E-value: 8.53e-122
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PLDc_3 | pfam13918 | PLD-like domain; |
242-421 | 7.16e-108 | |||||||
PLD-like domain; Pssm-ID: 464040 Cd Length: 180 Bit Score: 319.65 E-value: 7.16e-108
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PLDc_vPLD5_1 | cd09146 | Putative catalytic domain, repeat 1, of inactive veterbrate phospholipase PLD5; Putative ... |
111-273 | 2.16e-107 | |||||||
Putative catalytic domain, repeat 1, of inactive veterbrate phospholipase PLD5; Putative catalytic domain, repeat 1, of inactive veterbrate phospholipases D5 (PLD5, EC 3.1.4.4), homologs of the vaccinia virus protein K4 encoded by the HindIII K4L gene. Vertebrate PLD5 has been assigned to the PLD superfamily, since it shows high sequence similarity to other human homologs of protein K4, which contain two copies of the conserved HKD motif (H-x-K-x(4)-D, where x represents any amino acid residue). However, due to the lack of functionally important histidine and lysine residues in the HKD motif, vetebrate PLD5 has been characterized as an inactive PLD. Pssm-ID: 197244 [Multi-domain] Cd Length: 163 Bit Score: 317.57 E-value: 2.16e-107
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PHA02820 | PHA02820 | phospholipase-D-like protein; Provisional |
104-507 | 3.62e-81 | |||||||
phospholipase-D-like protein; Provisional Pssm-ID: 222934 [Multi-domain] Cd Length: 424 Bit Score: 259.93 E-value: 3.62e-81
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PLDc_vPLD3_4_5_like_2 | cd09107 | Putative catalytic domain, repeat 2, of vertebrate phospholipases, PLD3, PLD4 and PLD5, viral ... |
309-495 | 4.28e-74 | |||||||
Putative catalytic domain, repeat 2, of vertebrate phospholipases, PLD3, PLD4 and PLD5, viral envelope proteins K4 and p37, and similar proteins; Putative catalytic domain, repeat 2, of vertebrate phospholipases D, PLD3, PLD4, and PLD5 (EC 3.1.4.4), viral envelope proteins (vaccinia virus proteins K4 and p37), and similar proteins. Most family members contain two copies of the HKD motifs (H-x-K-x(4)-D, where x represents any amino acid residue), and have been classified into the phospholipase D (PLD) superfamily. Proteins in this subfamily are associated with Golgi membranes, altering their lipid content by the conversion of phospholipids into phosphatidic acid, which is thought to be involved in the regulation of lipid movement. ADP ribosylation factor (ARF), a small guanosine triphosphate binding protein, might be required activity. The vaccinia virus p37 protein, encoded by the F13L gene, is also associated with Golgi membranes and is required for the envelopment and spread of the extracellular enveloped virus (EEV). The vaccinia virus protein K4, encoded by the HindIII K4L gene, remains to be characterized. Sequence analysis indicates that the vaccinia virus proteins K4 and p37 might have evolved from one or more captured eukaryotic genes involved in cellular lipid metabolism. Up to date, no catalytic activity of PLD3 has been shown. Furthermore, due to the lack of functional important histidine and lysine residues in the HKD motif, mammalian PLD5 has been characterized as an inactive PLD. The poxvirus p37 proteins may also lack PLD enzymatic activity, since they contain only one partially conserved HKD motif (N-x-K-x(4)-D). Pssm-ID: 197206 [Multi-domain] Cd Length: 175 Bit Score: 232.53 E-value: 4.28e-74
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PLDc_vPLD3_2 | cd09147 | Putative catalytic domain, repeat 2, of vertebrate phospholipase PLD3; Putative catalytic ... |
309-499 | 3.03e-57 | |||||||
Putative catalytic domain, repeat 2, of vertebrate phospholipase PLD3; Putative catalytic domain, repeat 2, of phospholipase D3 (PLD3, EC 3.1.4.4). The human protein is also known as Hu-K4 or HUK4 and it was identified as a human homolog of the vaccinia virus protein K4, which is encoded by the HindIII K4L gene. PLD3 is found in many human organs with highest expression levels found in the central nervous system. Due to the presence of two copies of the conserved HKD motif (H-x-K-x(4)-D, where x represents any amino acid residue), PLD3 has been assigned to the PLD superfamily although no catalytic activity has been detected experimentally. PLD3 is a membrane-bound protein that colocalizes with protein disulfide isomerase, an endoplasmic reticulum (ER) protein. Like other homologs of protein K4, PLD3 might alter the lipid content of associated membranes by selectively hydrolyzing phosphatidylcholine (PC) into the corresponding phosphatidic acid, which is thought to be involved in the regulation of lipid movement. Pssm-ID: 197245 Cd Length: 186 Bit Score: 189.02 E-value: 3.03e-57
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PLDc_vPLD3_4_5_like_1 | cd09106 | Putative catalytic domain, repeat 1, of vertebrate phospholipases, PLD3, PLD4 and PLD5, viral ... |
112-256 | 6.35e-56 | |||||||
Putative catalytic domain, repeat 1, of vertebrate phospholipases, PLD3, PLD4 and PLD5, viral envelope proteins K4 and p37, and similar proteins; Putative catalytic domain, repeat 1, of vertebrate phospholipases D, PLD3, PLD4, and PLD5 (EC 3.1.4.4), viral envelope proteins (vaccinia virus proteins K4 and p37), and similar proteins. Most family members contain two copies of the HKD motifs (H-x-K-x(4)-D, where x represents any amino acid residue), and have been classified into the phospholipase D (PLD) superfamily. Proteins in this subfamily are associated with Golgi membranes, altering their lipid content by the conversion of phospholipids into phosphatidic acid, which is thought to be involved in the regulation of lipid movement. ADP ribosylation factor (ARF), a small guanosine triphosphate binding protein, might be required activity. The vaccinia virus p37 protein, encoded by the F13L gene, is also associated with Golgi membranes and is required for the envelopment and spread of the extracellular enveloped virus (EEV). The vaccinia virus protein K4, encoded by the HindIII K4L gene, remains to be characterized. Sequence analysis indicates that the vaccinia virus proteins K4 and p37 might have evolved from one or more captured eukaryotic genes involved in cellular lipid metabolism. Up to date, no catalytic activity of PLD3 has been shown. Furthermore, due to the lack of functional important histidine and lysine residues in the HKD motif, mammalian PLD5 has been characterized as an inactive PLD. The poxvirus p37 proteins may also lack PLD enzymatic activity, since they contain only one partially conserved HKD motif (N-x-K-x(4)-D). Pssm-ID: 197205 [Multi-domain] Cd Length: 153 Bit Score: 184.37 E-value: 6.35e-56
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PLDc_vPLD4_2 | cd09148 | Putative catalytic domain, repeat 2, of vertebrate phospholipase PLD4; Putative catalytic ... |
309-499 | 6.23e-52 | |||||||
Putative catalytic domain, repeat 2, of vertebrate phospholipase PLD4; Putative catalytic domain, repeat 2, of vertebrate phospholipases D4 (PLD4, EC 3.1.4.4), homologs of the vaccinia virus protein K4 which is encoded by the HindIII K4L gene. Due to the presence of two copies of the conserved HKD motif (H-x-K-x(4)-D, where x represents any amino acid residue), PLD4 has been assigned to PLD superfamily although no catalytic activity has been detected to date. Unlike PLD1 and PLD2, PLD4 does not contain Phox (PX) and Pleckstrin homology (PH) domains but has a putative transmembrane domain. Like other vertebrate homologs of protein K4, PLD4 might be associated with Golgi membranes and alter their lipid content by selectively hydrolyze phosphatidylcholine (PC) into corresponding phosphatidic acid, which is thought to be involved in the regulation of lipid movement. Pssm-ID: 197246 Cd Length: 187 Bit Score: 175.42 E-value: 6.23e-52
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PHA03003 | PHA03003 | palmytilated EEV membrane glycoprotein; Provisional |
107-502 | 1.69e-50 | |||||||
palmytilated EEV membrane glycoprotein; Provisional Pssm-ID: 177506 [Multi-domain] Cd Length: 369 Bit Score: 177.16 E-value: 1.69e-50
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PLDc_vPLD3_1 | cd09144 | Putative catalytic domain, repeat 1, of vertebrate phospholipase PLD3; Putative catalytic ... |
112-270 | 1.14e-48 | |||||||
Putative catalytic domain, repeat 1, of vertebrate phospholipase PLD3; Putative catalytic domain, repeat 1, of phospholipase D3 (PLD3, EC 3.1.4.4). The human protein is also known as Hu-K4 or HUK4 and it was identified as a human homolog of the vaccinia virus protein K4, which is encoded by the HindIII K4L gene. PLD3 is found in many human organs with highest expression levels found in the central nervous system. Due to the presence of two copies of the conserved HKD motif (H-x-K-x(4)-D, where x represents any amino acid residue), PLD3 has been assigned to the PLD superfamily although no catalytic activity has been detected experimentally. PLD3 is a membrane-bound protein that colocalizes with protein disulfide isomerase, an endoplasmic reticulum (ER) protein. Like other homologs of protein K4, PLD3 might alter the lipid content of associated membranes by selectively hydrolyzing phosphatidylcholine (PC) into the corresponding phosphatidic acid, which is thought to be involved in the regulation of lipid movement. Pssm-ID: 197242 [Multi-domain] Cd Length: 172 Bit Score: 165.89 E-value: 1.14e-48
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PLDc_vPLD4_1 | cd09145 | Putative catalytic domain, repeat 1, of vertebrate phospholipase PLD4; Putative catalytic ... |
112-270 | 1.77e-45 | |||||||
Putative catalytic domain, repeat 1, of vertebrate phospholipase PLD4; Putative catalytic domain, repeat 1, of vertebrate phospholipases D4 (PLD4, EC 3.1.4.4), homologs of the vaccinia virus protein K4 which is encoded by the HindIII K4L gene. Due to the presence of two copies of the conserved HKD motif (H-x-K-x(4)-D, where x represents any amino acid residue), PLD4 has been assigned to PLD superfamily although no catalytic activity has been detected to date. Unlike PLD1 and PLD2, PLD4 does not contain Phox (PX) and Pleckstrin homology (PH) domains but has a putative transmembrane domain. Like other vertebrate homologs of protein K4, PLD4 might be associated with Golgi membranes and alter their lipid content by selectively hydrolyze phosphatidylcholine (PC) into corresponding phosphatidic acid, which is thought to be involved in the regulation of lipid movement. Pssm-ID: 197243 [Multi-domain] Cd Length: 170 Bit Score: 157.38 E-value: 1.77e-45
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Cls | COG1502 | Phosphatidylserine/phosphatidylglycerophosphate/cardiolipin synthase [Lipid transport and ... |
132-494 | 1.61e-11 | |||||||
Phosphatidylserine/phosphatidylglycerophosphate/cardiolipin synthase [Lipid transport and metabolism]; Phosphatidylserine/phosphatidylglycerophosphate/cardiolipin synthase is part of the Pathway/BioSystem: Phospholipid biosynthesis Pssm-ID: 441111 [Multi-domain] Cd Length: 367 Bit Score: 65.73 E-value: 1.61e-11
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PLDc_SF | cd00138 | Catalytic domain of phospholipase D superfamily proteins; Catalytic domain of phospholipase D ... |
136-253 | 8.79e-10 | |||||||
Catalytic domain of phospholipase D superfamily proteins; Catalytic domain of phospholipase D (PLD) superfamily proteins. The PLD superfamily is composed of a large and diverse group of proteins including plant, mammalian and bacterial PLDs, bacterial cardiolipin (CL) synthases, bacterial phosphatidylserine synthases (PSS), eukaryotic phosphatidylglycerophosphate (PGP) synthase, eukaryotic tyrosyl-DNA phosphodiesterase 1 (Tdp1), and some bacterial endonucleases (Nuc and BfiI), among others. PLD enzymes hydrolyze phospholipid phosphodiester bonds to yield phosphatidic acid and a free polar head group. They can also catalyze the transphosphatidylation of phospholipids to acceptor alcohols. The majority of members in this superfamily contain a short conserved sequence motif (H-x-K-x(4)-D, where x represents any amino acid residue), called the HKD signature motif. There are varying expanded forms of this motif in different family members. Some members contain variant HKD motifs. Most PLD enzymes are monomeric proteins with two HKD motif-containing domains. Two HKD motifs from two domains form a single active site. Some PLD enzymes have only one copy of the HKD motif per subunit but form a functionally active dimer, which has a single active site at the dimer interface containing the two HKD motifs from both subunits. Different PLD enzymes may have evolved through domain fusion of a common catalytic core with separate substrate recognition domains. Despite their various catalytic functions and a very broad range of substrate specificities, the diverse group of PLD enzymes can bind to a phosphodiester moiety. Most of them are active as bi-lobed monomers or dimers, and may possess similar core structures for catalytic activity. They are generally thought to utilize a common two-step ping-pong catalytic mechanism, involving an enzyme-substrate intermediate, to cleave phosphodiester bonds. The two histidine residues from the two HKD motifs play key roles in the catalysis. Upon substrate binding, a histidine from one HKD motif could function as the nucleophile, attacking the phosphodiester bond to create a covalent phosphohistidine intermediate, while the other histidine residue from the second HKD motif could serve as a general acid, stabilizing the leaving group. Pssm-ID: 197200 [Multi-domain] Cd Length: 119 Bit Score: 56.37 E-value: 8.79e-10
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PLDc_2 | pfam13091 | PLD-like domain; |
138-267 | 1.85e-06 | |||||||
PLD-like domain; Pssm-ID: 463784 [Multi-domain] Cd Length: 132 Bit Score: 47.29 E-value: 1.85e-06
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PLDc_2 | pfam13091 | PLD-like domain; |
333-494 | 1.33e-05 | |||||||
PLD-like domain; Pssm-ID: 463784 [Multi-domain] Cd Length: 132 Bit Score: 44.98 E-value: 1.33e-05
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Cls | COG1502 | Phosphatidylserine/phosphatidylglycerophosphate/cardiolipin synthase [Lipid transport and ... |
131-268 | 2.37e-05 | |||||||
Phosphatidylserine/phosphatidylglycerophosphate/cardiolipin synthase [Lipid transport and metabolism]; Phosphatidylserine/phosphatidylglycerophosphate/cardiolipin synthase is part of the Pathway/BioSystem: Phospholipid biosynthesis Pssm-ID: 441111 [Multi-domain] Cd Length: 367 Bit Score: 46.47 E-value: 2.37e-05
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PLDc_SF | cd00138 | Catalytic domain of phospholipase D superfamily proteins; Catalytic domain of phospholipase D ... |
327-471 | 4.62e-05 | |||||||
Catalytic domain of phospholipase D superfamily proteins; Catalytic domain of phospholipase D (PLD) superfamily proteins. The PLD superfamily is composed of a large and diverse group of proteins including plant, mammalian and bacterial PLDs, bacterial cardiolipin (CL) synthases, bacterial phosphatidylserine synthases (PSS), eukaryotic phosphatidylglycerophosphate (PGP) synthase, eukaryotic tyrosyl-DNA phosphodiesterase 1 (Tdp1), and some bacterial endonucleases (Nuc and BfiI), among others. PLD enzymes hydrolyze phospholipid phosphodiester bonds to yield phosphatidic acid and a free polar head group. They can also catalyze the transphosphatidylation of phospholipids to acceptor alcohols. The majority of members in this superfamily contain a short conserved sequence motif (H-x-K-x(4)-D, where x represents any amino acid residue), called the HKD signature motif. There are varying expanded forms of this motif in different family members. Some members contain variant HKD motifs. Most PLD enzymes are monomeric proteins with two HKD motif-containing domains. Two HKD motifs from two domains form a single active site. Some PLD enzymes have only one copy of the HKD motif per subunit but form a functionally active dimer, which has a single active site at the dimer interface containing the two HKD motifs from both subunits. Different PLD enzymes may have evolved through domain fusion of a common catalytic core with separate substrate recognition domains. Despite their various catalytic functions and a very broad range of substrate specificities, the diverse group of PLD enzymes can bind to a phosphodiester moiety. Most of them are active as bi-lobed monomers or dimers, and may possess similar core structures for catalytic activity. They are generally thought to utilize a common two-step ping-pong catalytic mechanism, involving an enzyme-substrate intermediate, to cleave phosphodiester bonds. The two histidine residues from the two HKD motifs play key roles in the catalysis. Upon substrate binding, a histidine from one HKD motif could function as the nucleophile, attacking the phosphodiester bond to create a covalent phosphohistidine intermediate, while the other histidine residue from the second HKD motif could serve as a general acid, stabilizing the leaving group. Pssm-ID: 197200 [Multi-domain] Cd Length: 119 Bit Score: 42.89 E-value: 4.62e-05
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PLDc | smart00155 | Phospholipase D. Active site motifs; Phosphatidylcholine-hydrolyzing phospholipase D (PLD) ... |
215-242 | 1.12e-04 | |||||||
Phospholipase D. Active site motifs; Phosphatidylcholine-hydrolyzing phospholipase D (PLD) isoforms are activated by ADP-ribosylation factors (ARFs). PLD produces phosphatidic acid from phosphatidylcholine, which may be essential for the formation of certain types of transport vesicles or may be constitutive vesicular transport to signal transduction pathways. PC-hydrolysing PLD is a homologue of cardiolipin synthase, phosphatidylserine synthase, bacterial PLDs, and viral proteins. Each of these appears to possess a domain duplication which is apparent by the presence of two motifs containing well-conserved histidine, lysine, aspartic acid, and/or asparagine residues which may contribute to the active site. An E. coli endonuclease (nuc) and similar proteins appear to be PLD homologues but possess only one of these motifs. The profile contained here represents only the putative active site regions, since an accurate multiple alignment of the repeat units has not been achieved. Pssm-ID: 197546 [Multi-domain] Cd Length: 28 Bit Score: 39.30 E-value: 1.12e-04
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PLDc_unchar1_2 | cd09128 | Putative catalytic domain, repeat 2, of uncharacterized phospholipase D-like proteins; ... |
326-494 | 1.40e-04 | |||||||
Putative catalytic domain, repeat 2, of uncharacterized phospholipase D-like proteins; Putative catalytic domain, repeat 2, of uncharacterized phospholipase D (PLD, EC 3.1.4.4)-like proteins. PLD enzymes hydrolyze phospholipid phosphodiester bonds to yield phosphatidic acid and a free polar head group. They can also catalyze transphosphatidylation of phospholipids to acceptor alcohols. Members of this subfamily contain two HKD motifs (H-x-K-x(4)-D, where x represents any amino acid residue) that characterizes the PLD superfamily. The two motifs may be part of the active site and may be involved in phosphatidyl group transfer. Pssm-ID: 197226 [Multi-domain] Cd Length: 142 Bit Score: 42.26 E-value: 1.40e-04
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PLDc | pfam00614 | Phospholipase D Active site motif; Phosphatidylcholine-hydrolysing phospholipase D (PLD) ... |
215-242 | 1.62e-03 | |||||||
Phospholipase D Active site motif; Phosphatidylcholine-hydrolysing phospholipase D (PLD) isoforms are activated by ADP-ribosylation factors (ARFs). PLD produces phosphatidic acid from phosphatidylcholine, which may be essential for the formation of certain types of transport vesicles or may be constitutive vesicular transport to signal transduction pathways. PC-hydrolysing PLD is a homolog of cardiolipin synthase, phosphatidylserine synthase, bacterial PLDs, and viral proteins. Each of these appears to possess a domain duplication which is apparent by the presence of two motifs containing well-conserved histidine, lysine, and/or asparagine residues which may contribute to the active site. aspartic acid. An E. coli endonuclease (nuc) and similar proteins appear to be PLD homologs but possess only one of these motifs. The profile contained here represents only the putative active site regions, since an accurate multiple alignment of the repeat units has not been achieved. Pssm-ID: 395489 [Multi-domain] Cd Length: 28 Bit Score: 35.86 E-value: 1.62e-03
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Blast search parameters | ||||
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