major facilitator superfamily (MFS) transporter facilitates the transport across cytoplasmic or internal membranes of one or more from a variety of substrates including ions, sugar phosphates, drugs, neurotransmitters, nucleosides, amino acids, and peptides
Major Facilitator Superfamily; The Major Facilitator Superfamily (MFS) is a large and diverse ...
12-384
7.07e-169
Major Facilitator Superfamily; The Major Facilitator Superfamily (MFS) is a large and diverse group of secondary transporters that includes uniporters, symporters, and antiporters. MFS proteins facilitate the transport across cytoplasmic or internal membranes of a variety of substrates including ions, sugar phosphates, drugs, neurotransmitters, nucleosides, amino acids, and peptides. They do so using the electrochemical potential of the transported substrates. Uniporters transport a single substrate, while symporters and antiporters transport two substrates in the same or in opposite directions, respectively, across membranes. MFS proteins are typically 400 to 600 amino acids in length, and the majority contain 12 transmembrane alpha helices (TMs) connected by hydrophilic loops. The N- and C-terminal halves of these proteins display weak similarity and may be the result of a gene duplication/fusion event. Based on kinetic studies and the structures of a few bacterial superfamily members, GlpT (glycerol-3-phosphate transporter), LacY (lactose permease), and EmrD (multidrug transporter), MFS proteins are thought to function through a single substrate binding site, alternating-access mechanism involving a rocker-switch type of movement. Bacterial members function primarily for nutrient uptake, and as drug-efflux pumps to confer antibiotic resistance. Some MFS proteins have medical significance in humans such as the glucose transporter Glut4, which is impaired in type II diabetes, and glucose-6-phosphate transporter (G6PT), which causes glycogen storage disease when mutated.
The actual alignment was detected with superfamily member cd17409:
Pssm-ID: 475125 [Multi-domain] Cd Length: 374 Bit Score: 476.76 E-value: 7.07e-169
2-nitroimidazole transporter and similar proteins of the Major Facilitator Superfamily of ...
12-384
7.07e-169
2-nitroimidazole transporter and similar proteins of the Major Facilitator Superfamily of transporters; This subfamily is composed of Escherichia coli 2-nitroimidazole transporter (NIMT), also called YeaN, and similar proteins. NIMT confers resistance to 2-nitroimidazole, the antibacterial and antifungal antibiotic, by mediating the active efflux of this compound. The NIMT-like subfamily belongs to the 2-nitroimidazole and cyanate transporters like (NIMT/CynX-like) family of the Major Facilitator Superfamily (MFS) of transporters. MFS proteins are thought to function through a single substrate binding site, alternating-access mechanism involving a rocker-switch type of movement.
Pssm-ID: 340967 [Multi-domain] Cd Length: 374 Bit Score: 476.76 E-value: 7.07e-169
cyanate transporter; This family of proteins is involved in active transport of cyanate. The ...
11-364
1.32e-111
cyanate transporter; This family of proteins is involved in active transport of cyanate. The cyanate transporter in E.Coli is used to transport cyanate into the cell so it can be metabolized into ammonia and bicarbonate. This process is used to overcome the toxicity of environmental cyanate. [Transport and binding proteins, Other]
Pssm-ID: 129974 Cd Length: 355 Bit Score: 330.56 E-value: 1.32e-111
2-nitroimidazole transporter and similar proteins of the Major Facilitator Superfamily of ...
12-384
7.07e-169
2-nitroimidazole transporter and similar proteins of the Major Facilitator Superfamily of transporters; This subfamily is composed of Escherichia coli 2-nitroimidazole transporter (NIMT), also called YeaN, and similar proteins. NIMT confers resistance to 2-nitroimidazole, the antibacterial and antifungal antibiotic, by mediating the active efflux of this compound. The NIMT-like subfamily belongs to the 2-nitroimidazole and cyanate transporters like (NIMT/CynX-like) family of the Major Facilitator Superfamily (MFS) of transporters. MFS proteins are thought to function through a single substrate binding site, alternating-access mechanism involving a rocker-switch type of movement.
Pssm-ID: 340967 [Multi-domain] Cd Length: 374 Bit Score: 476.76 E-value: 7.07e-169
cyanate transporter; This family of proteins is involved in active transport of cyanate. The ...
11-364
1.32e-111
cyanate transporter; This family of proteins is involved in active transport of cyanate. The cyanate transporter in E.Coli is used to transport cyanate into the cell so it can be metabolized into ammonia and bicarbonate. This process is used to overcome the toxicity of environmental cyanate. [Transport and binding proteins, Other]
Pssm-ID: 129974 Cd Length: 355 Bit Score: 330.56 E-value: 1.32e-111
2-nitroimidazole and cyanate transporters and similar proteins of the Major Facilitator ...
12-384
4.23e-111
2-nitroimidazole and cyanate transporters and similar proteins of the Major Facilitator Superfamily of transporters; This family is composed of Escherichia coli 2-nitroimidazole transporter (NIMT) and cyanate transport protein CynX, and similar proteins. NIMT, also called YeaN, confers resistance to 2-nitroimidazole, the antibacterial and antifungal antibiotic, by mediating the active efflux of this compound. CynX is part of an active transport system that transports exogenous cyanate into E. coli cells. The NIMT/CynX-like family belongs to the Major Facilitator Superfamily (MFS) of membrane transport proteins, which are thought to function through a single substrate binding site, alternating-access mechanism involving a rocker-switch type of movement.
Pssm-ID: 340897 [Multi-domain] Cd Length: 374 Bit Score: 329.92 E-value: 4.23e-111
Cyanate transport protein CynX and similar proteins of the Major Facilitator Superfamily of ...
15-381
8.96e-34
Cyanate transport protein CynX and similar proteins of the Major Facilitator Superfamily of transporters; This subfamily is composed of Escherichia coli cyanate transport protein CynX and similar proteins. CynX is part of an active transport system that transports exogenous cyanate into E. coli cells. The gene encoding CynX is part of the cyn operon that also includes cynS, encoding cynase, which catalyzes the reaction of cyanate with bicarbonate to give ammonia and carbon dioxide, and cynT, which encodes a carbonic anhydrase. The CynX-like subfamily belongs to the 2-nitroimidazole and cyanate transporters like (NIMT/CynX-like) family of the Major Facilitator Superfamily (MFS) of transporters. MFS proteins are thought to function through a single substrate binding site, alternating-access mechanism involving a rocker-switch type of movement.
Pssm-ID: 340968 [Multi-domain] Cd Length: 372 Bit Score: 129.07 E-value: 8.96e-34
Major Facilitator Superfamily; The Major Facilitator Superfamily (MFS) is a large and diverse ...
15-377
3.94e-15
Major Facilitator Superfamily; The Major Facilitator Superfamily (MFS) is a large and diverse group of secondary transporters that includes uniporters, symporters, and antiporters. MFS proteins facilitate the transport across cytoplasmic or internal membranes of a variety of substrates including ions, sugar phosphates, drugs, neurotransmitters, nucleosides, amino acids, and peptides. They do so using the electrochemical potential of the transported substrates. Uniporters transport a single substrate, while symporters and antiporters transport two substrates in the same or in opposite directions, respectively, across membranes. MFS proteins are typically 400 to 600 amino acids in length, and the majority contain 12 transmembrane alpha helices (TMs) connected by hydrophilic loops. The N- and C-terminal halves of these proteins display weak similarity and may be the result of a gene duplication/fusion event. Based on kinetic studies and the structures of a few bacterial superfamily members, GlpT (glycerol-3-phosphate transporter), LacY (lactose permease), and EmrD (multidrug transporter), MFS proteins are thought to function through a single substrate binding site, alternating-access mechanism involving a rocker-switch type of movement. Bacterial members function primarily for nutrient uptake, and as drug-efflux pumps to confer antibiotic resistance. Some MFS proteins have medical significance in humans such as the glucose transporter Glut4, which is impaired in type II diabetes, and glucose-6-phosphate transporter (G6PT), which causes glycogen storage disease when mutated.
Pssm-ID: 349949 [Multi-domain] Cd Length: 378 Bit Score: 75.93 E-value: 3.94e-15
Fosmidomycin resistance protein of the Major Facilitator Superfamily of transporters; ...
30-382
3.46e-10
Fosmidomycin resistance protein of the Major Facilitator Superfamily of transporters; Fosmidomycin resistance protein (FsR) confers resistance against fosmidomycin. It shows sequence similarity with the bacterial drug-export proteins that mediate resistance to tetracycline and chloramphenicol. This FsR family belongs to the Major Facilitator Superfamily (MFS) of membrane transport proteins, which are thought to function through a single substrate binding site, alternating-access mechanism involving a rocker-switch type of movement.
Pssm-ID: 341031 [Multi-domain] Cd Length: 365 Bit Score: 61.03 E-value: 3.46e-10
Bacillus subtilis multidrug efflux protein YfmO and similar transporters of the Major ...
30-377
2.63e-08
Bacillus subtilis multidrug efflux protein YfmO and similar transporters of the Major Facilitator Superfamily; This family is composed of Bacillus subtilis multidrug efflux protein YfmO, bacillibactin exporter YmfD/YmfE, uncharacterized MFS-type transporter YvmA, and similar proteins. YfmO acts to efflux copper or a copper complex, and could contribute to copper resistance. YmfD/YmfE is involved in secretion of bacillibactin. The YfmO-like family belongs to the Major Facilitator Superfamily (MFS) of membrane transport proteins, which are thought to function through a single substrate binding site, alternating-access mechanism involving a rocker-switch type of movement.
Pssm-ID: 341027 [Multi-domain] Cd Length: 374 Bit Score: 55.27 E-value: 2.63e-08
MFS-type transporter YcxA and similar proteins of the Major Facilitator Superfamily of ...
8-377
9.42e-08
MFS-type transporter YcxA and similar proteins of the Major Facilitator Superfamily of transporters; This group is composed of uncharacterized bacterial MFS-type transporters including Bacillus subtilis YcxA and YbfB. YcxA has been shown to facilitate the export of surfactin in B. subtilis. The YcxA-like group belongs to the Monocarboxylate transporter -like (MCT-like) family of the Major Facilitator Superfamily (MFS) of membrane transport proteins. MFS proteins are thought to function through a single substrate binding site, alternating-access mechanism involving a rocker-switch type of movement.
Pssm-ID: 340913 [Multi-domain] Cd Length: 386 Bit Score: 53.43 E-value: 9.42e-08
Putative arabinose efflux permease family transporters of the Major Facilitator Superfamily; ...
52-383
3.68e-07
Putative arabinose efflux permease family transporters of the Major Facilitator Superfamily; This family includes a group of putative arabinose efflux permease family transporters, such as alpha proteobacterium quinolone resistance protein NorA (characterized Staphylococcus aureus Quinolone resistance protein NorA belongs to a different group), Desulfovibrio dechloracetivorans bacillibactin exporter, Vibrio aerogenes antiseptic resistance protein. The biological function of those transporters remain unclear. They belong to the Major Facilitator Superfamily (MFS) of membrane transport proteins, which are thought to function through a single substrate binding site, alternating-access mechanism involving a rocker-switch type of movement.
Pssm-ID: 341026 [Multi-domain] Cd Length: 374 Bit Score: 51.81 E-value: 3.68e-07
YcaD and similar transporters of the Major Facilitator Superfamily; This family is composed of ...
11-376
5.88e-05
YcaD and similar transporters of the Major Facilitator Superfamily; This family is composed of Escherichia coli MFS-type transporter YcaD, Bacillus subtilis MFS-type transporter YfkF, and similar proteins. They are uncharacterized transporters belonging to the Major Facilitator Superfamily (MFS) of membrane transport proteins, which are thought to function through a single substrate binding site, alternating-access mechanism involving a rocker-switch type of movement.
Pssm-ID: 341030 [Multi-domain] Cd Length: 360 Bit Score: 44.86 E-value: 5.88e-05
Uncharacterized protein YjiJ and similar proteins of the Major Facilitator Superfamily of ...
30-376
6.74e-05
Uncharacterized protein YjiJ and similar proteins of the Major Facilitator Superfamily of transporters; This family is composed of Escherichia coli YjiJ and other uncharacterized proteins. They belong to the Major Facilitator Superfamily (MFS) of membrane transport proteins, which are thought to function through a single substrate binding site, alternating-access mechanism involving a rocker-switch type of movement.
Pssm-ID: 340869 [Multi-domain] Cd Length: 371 Bit Score: 44.60 E-value: 6.74e-05
Hexuronate transporter, Glucarate transporter, and similar transporters of the Major ...
10-378
3.53e-04
Hexuronate transporter, Glucarate transporter, and similar transporters of the Major Facilitator Superfamily; This family is composed of predominantly bacterial transporters for hexuronate (ExuT), glucarate (GudP), galactarate (GarP), and galactonate (DgoT). They mediate the uptake of these compounds into the cell. They belong to the Major Facilitator Superfamily (MFS) of membrane transport proteins, which are thought to function through a single substrate binding site, alternating-access mechanism involving a rocker-switch type of movement.
Pssm-ID: 340877 [Multi-domain] Cd Length: 358 Bit Score: 42.17 E-value: 3.53e-04
Mycobacterium tuberculosis uncharacterized MFS-type transporter MT3072 and similar ...
24-377
8.84e-04
Mycobacterium tuberculosis uncharacterized MFS-type transporter MT3072 and similar transporters of the Major Facilitator Superfamily; This family includes the Mycobacterium tuberculosis uncharacterized MFS-type transporter MT3072. It belongs to the Major Facilitator Superfamily (MFS) of membrane transport proteins, which are thought to function through a single substrate binding site, alternating-access mechanism involving a rocker-switch type of movement.
Pssm-ID: 341028 [Multi-domain] Cd Length: 378 Bit Score: 41.07 E-value: 8.84e-04
Multidrug transporter MdfA and similar multidrug resistance (MDR) transporters of the Major ...
31-381
1.41e-03
Multidrug transporter MdfA and similar multidrug resistance (MDR) transporters of the Major Facilitator Superfamily; This family is composed of bacterial multidrug resistance (MDR) transporters including several proteins from Escherichia coli such as MdfA (also called chloramphenicol resistance pump Cmr), EmrD, MdtM, MdtL, bicyclomycin resistance protein (also called sulfonamide resistance protein), and the uncharacterized inner membrane transport protein YdhC. EmrD is a proton-dependent secondary transporter, first identified as an efflux pump for uncouplers of oxidative phosphorylation. It expels a range of drug molecules and amphipathic compounds across the inner membrane of E. coli. Similarly, MdfA is a secondary multidrug transporter that exports a broad spectrum of structurally and electrically dissimilar toxic compounds. These MDR transporters are drug/H+ antiporters (DHA) belonging to the Major Facilitator Superfamily (MFS) of membrane transport proteins, which are thought to function through a single substrate binding site, alternating-access mechanism involving a rocker-switch type of movement.
Pssm-ID: 340878 [Multi-domain] Cd Length: 379 Bit Score: 40.25 E-value: 1.41e-03
Monocarboxylate transporter (MCT) family of the Major Facilitator Superfamily of transporters; ...
60-378
4.99e-03
Monocarboxylate transporter (MCT) family of the Major Facilitator Superfamily of transporters; The animal Monocarboxylate transporter (MCT) family is also called Solute carrier family 16 (SLC16 or SLC16A). It is composed of 14 members, MCT1-14. MCTs play an integral role in cellular metabolism via lactate transport and have been implicated in metabolic synergy in tumors. MCT1-4 are proton-coupled transporters that facilitate the transport across the plasma membrane of monocarboxylates such as lactate, pyruvate, branched-chain oxo acids derived from leucine, valine and isoleucine, and ketone bodies such as acetoacetate, beta-hydroxybutyrate and acetate. MCT8 and MCT10 are transporters which stimulate the cellular uptake of thyroid hormones such as thyroxine (T4), triiodothyronine (T3), reverse triiodothyronine (rT3) and diidothyronine (T2). MCT10 also functions as a sodium-independent transporter that mediates the uptake or efflux of aromatic acids. Many members are orphan transporters whose substrates are yet to be determined. The MCT family belongs to the Major Facilitator Superfamily (MFS) of membrane transport proteins, which are thought to function through a single substrate binding site, alternating-access mechanism involving a rocker-switch type of movement.
Pssm-ID: 340910 [Multi-domain] Cd Length: 361 Bit Score: 38.69 E-value: 4.99e-03
Organophosphate:Pi antiporter/Solute Carrier family 37 of the Major Facilitator Superfamily of ...
221-382
6.51e-03
Organophosphate:Pi antiporter/Solute Carrier family 37 of the Major Facilitator Superfamily of transporters; Organophosphate:Pi antiporters (OPA) are integral membrane proteins responsible for the transport of specific organophosphates or sugar phosphates across biological membranes with the simultaneous translocation of inorganic phosphate into the opposite direction. The OPA family is also called solute carrier family 37 (SLC37) in vertebrates. Members include glucose-6-phosphate (Glc6P) transporter (also called translocase or exchanger), glycerol-3-phosphate permease, 2-phosphonopropionate transporter, phosphoglycerate transporter, as well as membrane sensor protein UhpC from Escherichia coli. UhpC is both a sensor and a transport protein; it recognizes external Glc6P and induces transport by UhpT, and it can also transport Glc6P. Vertebrates contain four SLC37 or sugar-phosphate exchange (SPX) proteins: SLC37A1 (SPX1), SLC37A2 (SPX2), SLC37A3 (SPX3), and SLC37AA4 (SPX4). The OPA/SLC37 family belongs to the Major Facilitator Superfamily (MFS) of membrane transport proteins, which are thought to function through a single substrate binding site, alternating-access mechanism involving a rocker-switch type of movement.
Pssm-ID: 340870 [Multi-domain] Cd Length: 364 Bit Score: 38.41 E-value: 6.51e-03
Metazoan Synaptic vesicle glycoprotein 2 (SV2) and related small molecule transporters of the ...
210-380
7.14e-03
Metazoan Synaptic vesicle glycoprotein 2 (SV2) and related small molecule transporters of the Major Facilitator Superfamily; This family is composed of metazoan synaptic vesicle glycoprotein 2 (SV2) and related small molecule transporters including those that transport inorganic phosphate (Pht), aromatic compounds (PcaK and related proteins), proline/betaine (ProP), alpha-ketoglutarate (KgtP), citrate (CitA), shikimate (ShiA), and cis,cis-muconate (MucK), among others. SV2 is a transporter-like protein that serves as the receptor for botulinum neurotoxin A (BoNT/A), one of seven neurotoxins produced by the bacterium Clostridium botulinum. BoNT/A blocks neurotransmitter release by cleaving synaptosome-associated protein of 25 kD (SNAP-25) within presynaptic nerve terminals. Also included in this family is synaptic vesicle 2 (SV2)-related protein (SVOP) and similar proteins. SVOP is a transporter-like nucleotide binding protein that localizes to neurotransmitter-containing vesicles. The SV2-like family belongs to the Major Facilitator Superfamily (MFS) of membrane transport proteins, which are thought to function through a single substrate binding site, alternating-access mechanism involving a rocker-switch type of movement.
Pssm-ID: 340874 [Multi-domain] Cd Length: 353 Bit Score: 38.35 E-value: 7.14e-03
Eukaryotic Solute carrier 46 (SLC46) family, Bacterial Tetracycline resistance proteins, and similar proteins of the Major Facilitator Superfamily of transporters; This family is composed of the eukaryotic proteins MFSD9, MFSD10, MFSD14, and SLC46 family proteins, as well as bacterial multidrug resistance (MDR) transporters such as tetracycline resistance protein TetA and multidrug resistance protein MdtG. MDR transporters are drug/H+ antiporters (DHA) that mediate the efflux of a variety of drugs and toxic compounds, and confer resistance to these compounds. TetA proteins confer resistance to tetracycline while MdtG confers resistance to fosfomycin and deoxycholate. The Solute carrier 46 (SLC46) family is composed of three vertebrate members (SLC46A1, SLC46A2, and SLC46A3), the best-studied of which is SLC46A1, which functions both as an intestinal proton-coupled high-affinity folate transporter involved in the absorption of folates and as an intestinal heme transporter which mediates heme uptake. MFSD10 facilitates the uptake of organic anions such as some non-steroidal anti-inflammatory drugs (NSAIDs) and confers resistance to such NSAIDs. The SLC46/TetA-like family belongs to the Major Facilitator Superfamily (MFS) of membrane transport proteins, which are thought to function through a single substrate binding site, alternating-access mechanism involving a rocker-switch type of movement.
Pssm-ID: 340888 [Multi-domain] Cd Length: 349 Bit Score: 37.94 E-value: 7.87e-03
Database: CDSEARCH/cdd Low complexity filter: no Composition Based Adjustment: yes E-value threshold: 0.01
References:
Wang J et al. (2023), "The conserved domain database in 2023", Nucleic Acids Res.51(D)384-8.
Lu S et al. (2020), "The conserved domain database in 2020", Nucleic Acids Res.48(D)265-8.
Marchler-Bauer A et al. (2017), "CDD/SPARCLE: functional classification of proteins via subfamily domain architectures.", Nucleic Acids Res.45(D)200-3.
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