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 ...
14-372
0e+00
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 cd17381:
Pssm-ID: 475125 [Multi-domain] Cd Length: 397 Bit Score: 566.72 E-value: 0e+00
Solute carrier family 17 member 5 (also called sialin) of the Major Facilitator Superfamily of ...
14-372
0e+00
Solute carrier family 17 member 5 (also called sialin) of the Major Facilitator Superfamily of transporters; Solute carrier family 17 member 5 (SLC17A5) is also called sialin, H(+)/nitrate cotransporter, H(+)/sialic acid cotransporter (AST), membrane glycoprotein HP59, or vesicular H(+)/aspartate-glutamate cotransporter. It transports glucuronic acid and free sialic acid out of the lysosome after its cleavage from sialoglycoconjugates, which is required for normal CNS myelination. It also mediates the membrane potential-dependent uptake of aspartate and glutamate into synaptic vesicles and synaptic-like microvesicles. In the plasma membrane, it functions as a nitrate transporter. Recessive mutations in the SLC17A5 gene cause the allelic disorders, Infantile sialic acid storage disease (ISSD) and Salla disease (a predominantly neurological disorder). SLC17A5 belongs to the Solute carrier 17 (SLC17) 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: 340939 [Multi-domain] Cd Length: 397 Bit Score: 566.72 E-value: 0e+00
Solute carrier family 17 member 5 (also called sialin) of the Major Facilitator Superfamily of ...
14-372
0e+00
Solute carrier family 17 member 5 (also called sialin) of the Major Facilitator Superfamily of transporters; Solute carrier family 17 member 5 (SLC17A5) is also called sialin, H(+)/nitrate cotransporter, H(+)/sialic acid cotransporter (AST), membrane glycoprotein HP59, or vesicular H(+)/aspartate-glutamate cotransporter. It transports glucuronic acid and free sialic acid out of the lysosome after its cleavage from sialoglycoconjugates, which is required for normal CNS myelination. It also mediates the membrane potential-dependent uptake of aspartate and glutamate into synaptic vesicles and synaptic-like microvesicles. In the plasma membrane, it functions as a nitrate transporter. Recessive mutations in the SLC17A5 gene cause the allelic disorders, Infantile sialic acid storage disease (ISSD) and Salla disease (a predominantly neurological disorder). SLC17A5 belongs to the Solute carrier 17 (SLC17) 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: 340939 [Multi-domain] Cd Length: 397 Bit Score: 566.72 E-value: 0e+00
Solute carrier 17 (SLC17) family of the Major Facilitator Superfamily of transporters; The ...
21-372
2.05e-150
Solute carrier 17 (SLC17) family of the Major Facilitator Superfamily of transporters; The Solute carrier 17 (SLC17) family is primarily involved in the transport of organic anions. There are nime human proteins belonging to this family including: the type I phosphate transporters (SLC17A1-4) that were initially identified as sodium-dependent inorganic phosphate (Pi) transporters but are now known to be involved in tha transport of organic anions; lysosomal acidic sugar transporter (SLC17A5 or sialin), vesicular glutamate transporters (VGluT1#3 or SLC17A7, SLC17A6, and SLC17A8, respectively), and a vesicular nucleotide transporter (VNUT or SLC17A9). SLC17A1 and SLC17A3 have roles in the transport of urate and para-aminohippurate, respectively. The SLC17 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: 340876 [Multi-domain] Cd Length: 389 Bit Score: 430.50 E-value: 2.05e-150
Solute carrier family 17 members 6, 7, and 8 (also called Vesicular glutamate transporters) of ...
12-372
2.87e-99
Solute carrier family 17 members 6, 7, and 8 (also called Vesicular glutamate transporters) of the Major Facilitator Superfamily of transporters; This subfamily is composed of solute carrier family 17 member 6 (SLC17A6), SLC17A7, SLC17A8, and similar proteins. SLC17A6 is also called vesicular glutamate transporter 2 (VGluT2), differentiation-associated BNPI, or differentiation-associated Na(+)-dependent inorganic phosphate cotransporter. SLC17A7 is also called VGluT1 or brain-specific Na(+)-dependent inorganic phosphate cotransporter. SLC17A8 is also called VGluT3. They mediate the uptake of glutamate into synaptic vesicles at presynaptic nerve terminals of excitatory neural cells, and may also mediate the transport of inorganic phosphate. VGluTs are also expressed and localized in various secretory vesicles in non-neuronal peripheral organelles such as hormone-containing secretory granules in endocrine cells, and thus, also act as metabolic regulators. The VGluT subfamily belongs to the Solute carrier 17 (SLC17) 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: 340940 [Multi-domain] Cd Length: 380 Bit Score: 300.03 E-value: 2.87e-99
Solute carrier family 17 member 9 and similar proteins of the Major Facilitator Superfamily of ...
22-372
3.88e-95
Solute carrier family 17 member 9 and similar proteins of the Major Facilitator Superfamily of transporters; This subfamily includes solute carrier family 17 member 9 (SLC17A9) and similar proteins including plant inorganic phosphate transporters (PHT4) that are also probably anion transporters. SLC17A9, also called vesicular nucleotide transporter (VNUT), is involved in vesicular storage and exocytosis of ATP. It facilitates the accumulation of ATP and other nucleotides in secretory vesicles such as adrenal chromaffin granules and synaptic vesicles. It also functions as a lysosomal ATP transporter and regulates cell viability. Plant PHT4 family transporters mediate the transport of inorganic phosphate and may also transport organic anions. The Arabidopsis protein AtPHT4;4 is a chloroplast-localized ascorbate transporter. PHT4 proteins show differential expression that suggests specialized functions. The SLC17A9-like subfamily belongs to the Solute carrier 17 (SLC17) 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: 340938 [Multi-domain] Cd Length: 361 Bit Score: 288.68 E-value: 3.88e-95
Hexuronate transporter, Glucarate transporter, and similar transporters of the Major ...
25-366
1.35e-34
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: 130.77 E-value: 1.35e-34
Major Facilitator Superfamily; The Major Facilitator Superfamily (MFS) is a large and diverse ...
24-368
1.32e-32
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: 126.00 E-value: 1.32e-32
bacterial MdtG-like and eukaryotic solute carrier 18 (SLC18) family of the Major Facilitator ...
32-372
7.12e-21
bacterial MdtG-like and eukaryotic solute carrier 18 (SLC18) family of the Major Facilitator Superfamily of transporters; This family is composed of eukaryotic solute carrier 18 (SLC18) family transporters and related bacterial multidrug resistance (MDR) transporters including several proteins from Escherichia coli such as multidrug resistance protein MdtG, from Bacillus subtilis such as multidrug resistance proteins 1 (Bmr1) and 2 (Bmr2), and from Staphylococcus aureus such as quinolone resistance protein NorA. The family also includes Escherichia coli arabinose efflux transporters YfcJ and YhhS. 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. The SLC18 transporter family includes vesicular monoamine transporters (VAT1 and VAT2), vesicular acetylcholine transporter (VAChT), and SLC18B1, which is proposed to be a vesicular polyamine transporter (VPAT). The MdtG/SLC18 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: 340883 [Multi-domain] Cd Length: 375 Bit Score: 93.02 E-value: 7.12e-21
Pantothenate transporter FEN2 and similar transporters of the Major Facilitator Superfamily; ...
33-340
9.94e-13
Pantothenate transporter FEN2 and similar transporters of the Major Facilitator Superfamily; This family is composed of Saccharomyces cerevisiae pantothenate transporter FEN2 (or fenpropimorph resistance protein 2) and similar proteins from fungi and bacteria including fungal vitamin H transporter, allantoate permease, and high-affinity nicotinic acid transporter, as well as Pseudomonas putida phthalate transporter and nicotinate degradation protein T (nicT). These proteins are involved in the uptake into the cell of specific substrates such as pathothenate, biotin, allantoate, and nicotinic acid, among others. The FEN2-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: 340885 [Multi-domain] Cd Length: 406 Bit Score: 68.81 E-value: 9.94e-13
Metazoan Synaptic vesicle glycoprotein 2 (SV2) and related small molecule transporters of the ...
27-366
6.23e-09
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: 56.84 E-value: 6.23e-09
Cis,cis-muconate transport protein and similar proteins of the Major Facilitator Superfamily; ...
29-368
1.47e-07
Cis,cis-muconate transport protein and similar proteins of the Major Facilitator Superfamily; This subfamily is composed of Acinetobacter sp. Cis,cis-muconate transport protein (MucK), Escherichia coli putative sialic acid transporter 1, and similar proteins. MucK functions in the uptake of muconate and allows Acinetobacter calcoaceticus ADP1 (BD413) to grow on exogenous cis,cis-muconate as the sole carbon source. The MucK subfamily belongs to the Metazoan Synaptic Vesicle Glycoprotein 2 (SV2) and related small molecule transporter family (SV2-like) 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: 340929 [Multi-domain] Cd Length: 389 Bit Score: 53.07 E-value: 1.47e-07
Bacillus subtilis multidrug efflux protein YfmO and similar transporters of the Major ...
32-371
1.94e-07
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: 52.57 E-value: 1.94e-07
MFS family permease, includes anhydromuropeptide permease AmpG [Carbohydrate transport and ...
27-136
1.72e-06
MFS family permease, includes anhydromuropeptide permease AmpG [Carbohydrate transport and metabolism, Amino acid transport and metabolism, Inorganic ion transport and metabolism, General function prediction only];
Pssm-ID: 440245 [Multi-domain] Cd Length: 295 Bit Score: 49.04 E-value: 1.72e-06
bacterial MdtG-like and eukaryotic solute carrier 18 (SLC18) family of the Major Facilitator ...
22-124
6.91e-06
bacterial MdtG-like and eukaryotic solute carrier 18 (SLC18) family of the Major Facilitator Superfamily of transporters; This family is composed of eukaryotic solute carrier 18 (SLC18) family transporters and related bacterial multidrug resistance (MDR) transporters including several proteins from Escherichia coli such as multidrug resistance protein MdtG, from Bacillus subtilis such as multidrug resistance proteins 1 (Bmr1) and 2 (Bmr2), and from Staphylococcus aureus such as quinolone resistance protein NorA. The family also includes Escherichia coli arabinose efflux transporters YfcJ and YhhS. 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. The SLC18 transporter family includes vesicular monoamine transporters (VAT1 and VAT2), vesicular acetylcholine transporter (VAChT), and SLC18B1, which is proposed to be a vesicular polyamine transporter (VPAT). The MdtG/SLC18 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: 340883 [Multi-domain] Cd Length: 375 Bit Score: 47.57 E-value: 6.91e-06
Fungal trichothecene efflux pump (TRI12) of the Major Facilitator Superfamily of transporters; ...
187-371
2.66e-05
Fungal trichothecene efflux pump (TRI12) of the Major Facilitator Superfamily of transporters; This family includes Fusarium sporotrichioides trichothecene efflux pump (TRI12), which may play a role in F. sporotrichioides self-protection against trichothecenes. TRI12 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: 340868 [Multi-domain] Cd Length: 518 Bit Score: 46.08 E-value: 2.66e-05
Purine ribonucleoside efflux pump NepI and similar transporters of the Major Facilitator ...
32-369
3.17e-05
Purine ribonucleoside efflux pump NepI and similar transporters of the Major Facilitator Superfamily; This family is composed of purine efflux pumps such as Escherichia coli NepI and Bacillus subtilis PbuE, sugar efflux transporters such as Corynebacterium glutamicum arabinose efflux permease, multidrug resistance (MDR) transporters such as Streptomyces lividans chloramphenicol resistance protein (CmlR), and similar proteins. NepI and PbuE are involved in the efflux of purine ribonucleosides such as guanosine, adenosine and inosine, as well as purine bases like guanine, adenine, and hypoxanthine, and purine base analogs. They play a role in the maintenance of cellular purine base pools, as well as in protecting the cells and conferring resistance against toxic purine base analogs such as 6-mercaptopurine. 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. The NepI-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: 340882 [Multi-domain] Cd Length: 370 Bit Score: 45.62 E-value: 3.17e-05
Putative arabinose efflux permease family transporters of the Major Facilitator Superfamily; ...
50-372
4.44e-05
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: 45.26 E-value: 4.44e-05
Organophosphate:Pi antiporter/Solute Carrier family 37 of the Major Facilitator Superfamily of ...
32-371
6.79e-05
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: 44.57 E-value: 6.79e-05
Escherichia coli YfcJ, YhhS, and similar transporters of the Major Facilitator Superfamily; ...
32-371
7.40e-05
Escherichia coli YfcJ, YhhS, and similar transporters of the Major Facilitator Superfamily; This subfamily is composed of Escherichia coli membrane proteins, YfcJ and YhhS, Bacillus subtilis uncharacterized MFS-type transporter YwoG, and similar proteins. YfcJ and YhhS are putative arabinose efflux transporters. YhhS has been implicated glyphosate resistance. YfcJ-like arabinose efflux transporters belong to the bacterial MdtG-like and eukaryotic solute carrier 18 (SLC18) 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: 341042 [Multi-domain] Cd Length: 367 Bit Score: 44.51 E-value: 7.40e-05
Mycobacterium tuberculosis uncharacterized MFS-type transporter MT3072 and similar ...
32-368
9.66e-05
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: 44.15 E-value: 9.66e-05
Major Facilitator Superfamily; The Major Facilitator Superfamily (MFS) is a large and diverse ...
188-371
2.56e-04
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: 42.80 E-value: 2.56e-04
Glycerol-3-Phosphate Transporter of the Major Facilitator Superfamily of transporters; ...
22-371
3.88e-04
Glycerol-3-Phosphate Transporter of the Major Facilitator Superfamily of transporters; Glycerol-3-Phosphate Transporter (also called GlpT or G-3-P permease) is responsible for glycerol-3-phosphate uptake. It is part of the Organophosphate:Pi antiporter (OPA) family of 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 GlpT group 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: 340903 [Multi-domain] Cd Length: 411 Bit Score: 42.23 E-value: 3.88e-04
Multidrug resistance protein MdtH and similar multidrug resistance (MDR) transporters of the ...
32-227
4.47e-04
Multidrug resistance protein MdtH and similar multidrug resistance (MDR) transporters of the Major Facilitator Superfamily; This family is composed of Escherichia coli MdtH and similar multidrug resistance (MDR) transporters from bacteria and archaea, many of which remain uncharacterized. 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. MdtH confers resistance to norfloxacin and enoxacin. MdtH-like MDR transporters 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: 340887 [Multi-domain] Cd Length: 376 Bit Score: 41.83 E-value: 4.47e-04
4-hydroxybenzoate transporter PcaK and similar transporters of the Major Facilitator ...
27-128
4.87e-04
4-hydroxybenzoate transporter PcaK and similar transporters of the Major Facilitator Superfamily; This aromatic acid:H(+) symporter subfamily includes Acinetobacter sp. 4-hydroxybenzoate transporter PcaK, Pseudomonas putida gallate transporter (GalT), Corynebacterium glutamicum gentisate transporter (GenK), Nocardioides sp. 1-hydroxy-2-naphthoate transporter (PhdT), Escherichia coli 3-(3-hydroxy-phenyl)propionate (3HPP) transporter (MhpT), and similar proteins. These transporters are involved in the uptake across the cytoplasmic membrane of specific aromatic compounds such as 4-hydroxybenzoate, gallate, gentisate (2,5-dihydroxybenzoate), 1-hydroxy-2-naphthoate, and 3HPP, respectively. The PcaK-like aromatic acid:H(+) symporter subfamily belongs to the Metazoan Synaptic Vesicle Glycoprotein 2 (SV2) and related small molecule transporter family (SV2-like) 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: 340923 [Multi-domain] Cd Length: 351 Bit Score: 41.80 E-value: 4.87e-04
Macrolide efflux protein A and similar proteins of the Major Facilitator Superfamily of ...
32-371
6.71e-04
Macrolide efflux protein A and similar proteins of the Major Facilitator Superfamily of transporters; This family is composed of Streptococcus pyogenes macrolide efflux protein A (MefA) and similar transporters, many of which remain uncharacterized. Some members may be multidrug resistance (MDR) transporters, which are drug/H+ antiporters (DHAs) that mediate the efflux of a variety of drugs and toxic compounds, conferring resistance to these compounds. MefA confers resistance to 14-membered macrolides including erythromycin and to 15-membered macrolides. It functions as an efflux pump to regulate intracellular macrolide levels. The MefA-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: 340863 [Multi-domain] Cd Length: 383 Bit Score: 41.45 E-value: 6.71e-04
Protein spinster and spinster homologs of the Major Facilitator Superfamily of transporters; ...
30-129
8.67e-04
Protein spinster and spinster homologs of the Major Facilitator Superfamily of transporters; The protein spinster family includes Drosophila protein spinster, its vertebrate homologs, and similar proteins. Humans contain three homologs called protein spinster homologs 1 (SPNS1), 2 (SPNS2), and 3 (SPNS3). Protein spinster and its homologs may be sphingolipid transporters that play central roles in endosomes and/or lysosomes storage. SPNS2 is also called sphingosine 1-phosphate (S1P) transporter and is required for migration of myocardial precursors. S1P is a secreted lipid mediator that plays critical roles in cardiovascular, immunological, and neural development and function. The spinster-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: 340886 [Multi-domain] Cd Length: 405 Bit Score: 41.07 E-value: 8.67e-04
bacterial MdtG-like and eukaryotic solute carrier 18 (SLC18) family of the Major Facilitator ...
188-373
1.49e-03
bacterial MdtG-like and eukaryotic solute carrier 18 (SLC18) family of the Major Facilitator Superfamily of transporters; This family is composed of eukaryotic solute carrier 18 (SLC18) family transporters and related bacterial multidrug resistance (MDR) transporters including several proteins from Escherichia coli such as multidrug resistance protein MdtG, from Bacillus subtilis such as multidrug resistance proteins 1 (Bmr1) and 2 (Bmr2), and from Staphylococcus aureus such as quinolone resistance protein NorA. The family also includes Escherichia coli arabinose efflux transporters YfcJ and YhhS. 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. The SLC18 transporter family includes vesicular monoamine transporters (VAT1 and VAT2), vesicular acetylcholine transporter (VAChT), and SLC18B1, which is proposed to be a vesicular polyamine transporter (VPAT). The MdtG/SLC18 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: 340883 [Multi-domain] Cd Length: 375 Bit Score: 40.25 E-value: 1.49e-03
Methylenomycin A resistance protein (also called MMR peptide) and similar multidrug resistance ...
27-367
1.88e-03
Methylenomycin A resistance protein (also called MMR peptide) and similar multidrug resistance (MDR) transporters of the Major Facilitator Superfamily; This family is composed of bacterial, fungal, and archaeal multidrug resistance (MDR) transporters including several proteins from Bacilli such as methylenomycin A resistance protein (also called MMR peptide), tetracycline resistance protein (TetB), and lincomycin resistance protein LmrB, as well as fungal proteins such as vacuolar basic amino acid transporters, which are involved in the transport into vacuoles of the basic amino acids histidine, lysine, and arginine in Saccharomyces cerevisiae, and aminotriazole/azole resistance proteins. 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. For example, MMR confers resistance to the epoxide antibiotic methylenomycin while TetB resistance to tetracycline by an active tetracycline efflux. MMR-like MDR transporters 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: 340879 [Multi-domain] Cd Length: 370 Bit Score: 39.85 E-value: 1.88e-03
Escherichia coli inner membrane transport protein YajR and similar multidrug-efflux ...
32-338
2.03e-03
Escherichia coli inner membrane transport protein YajR and similar multidrug-efflux transporters of the Major Facilitator Superfamily; This family is composed of Escherichia coli inner membrane transport protein YajR and some uncharacterized multidrug-efflux transporters. YajR is a putative proton-driven major facilitator superfamily (MFS) transporter found in many gram-negative bacteria. Unlike most MFS transporters, YajR contains a C-terminal, cytosolic YAM domain, which may play an essential role for the proper functioning of the transporter. YajR-like transporters 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: 341025 [Multi-domain] Cd Length: 371 Bit Score: 39.89 E-value: 2.03e-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: 39.48 E-value: 2.42e-03
Fosmidomycin resistance protein of the Major Facilitator Superfamily of transporters; ...
50-368
2.76e-03
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: 39.46 E-value: 2.76e-03
Bacterial fucose permease, eukaryotic Major facilitator superfamily domain-containing protein ...
162-370
4.73e-03
Bacterial fucose permease, eukaryotic Major facilitator superfamily domain-containing protein 4, and similar proteins; This family is composed of bacterial L-fucose permease (FucP), eukaryotic Major facilitator superfamily domain-containing protein 4 (MFSD4) proteins, and similar proteins. L-fucose permease facilitates the uptake of L-fucose across the boundary membrane with the concomitant transport of protons into the cell; it can also transport L-galactose and D-arabinose. The MFSD4 subfamily consists of two vertebrate members: MFSD4A and MFSD4B. The function of MFSD4A is unknown. MFSD4B is more commonly know as Sodium-dependent glucose transporter 1 (NaGLT1), a primary fructose transporter in rat renal brush-border membranes that also facilitates sodium-independent urea uptake. The FucP/MFSD4 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: 340891 [Multi-domain] Cd Length: 372 Bit Score: 38.84 E-value: 4.73e-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.
of the residues that compose this conserved feature have been mapped to the query sequence.
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Functional characterization of the conserved domain architecture found on the query.
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This image shows a graphical summary of conserved domains identified on the query sequence.
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if a domain or superfamily has been annotated with functional sites (conserved features),
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click on the bars or triangles to view your query sequence embedded in a multiple sequence alignment of the proteins used to develop the corresponding domain model.
The table lists conserved domains identified on the query sequence. Click on the plus sign (+) on the left to display full descriptions, alignments, and scores.
Click on the domain model's accession number to view the multiple sequence alignment of the proteins used to develop the corresponding domain model.
To view your query sequence embedded in that multiple sequence alignment, click on the colored bars in the Graphical Summary portion of the search results page,
or click on the triangles, if present, that represent functional sites (conserved features)
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Concise Display shows only the best scoring domain model, in each hit category listed below except non-specific hits, for each region on the query sequence.
(labeled illustration) Standard Display shows only the best scoring domain model from each source, in each hit category listed below for each region on the query sequence.
(labeled illustration) Full Display shows all domain models, in each hit category below, that meet or exceed the RPS-BLAST threshold for statistical significance.
(labeled illustration) Four types of hits can be shown, as available,
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specific hits meet or exceed a domain-specific e-value threshold
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and represent a very high confidence that the query sequence belongs to the same protein family as the sequences use to create the domain model
non-specific hits
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the domain superfamily to which the specific and non-specific hits belong
multi-domain models that were computationally detected and are likely to contain multiple single domains
Retrieve proteins that contain one or more of the domains present in the query sequence, using the Conserved Domain Architecture Retrieval Tool
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