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 ...
28-464
4.04e-65
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 cd17503:
Pssm-ID: 475125 [Multi-domain] Cd Length: 380 Bit Score: 214.75 E-value: 4.04e-65
Bacillus subtilis lincomycin resistance protein (LmrB) and similar multidrug resistance (MDR) ...
28-464
4.04e-65
Bacillus subtilis lincomycin resistance protein (LmrB) and similar multidrug resistance (MDR) transporters of the Major Facilitator Superfamily; This subfamily is composed of multidrug resistance (MDR) transporters including Bacillus subtilis lincomycin resistance protein LmrB, and several proteins from Escherichia coli such as the putative MDR transporters EmrB, MdtD, and YieQ. 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. This subfamily belongs to the Methylenomycin A resistance protein (also called MMR peptide) and similar multidrug resistance (MDR) transporters (MMR-like MDR transporter) 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: 341046 [Multi-domain] Cd Length: 380 Bit Score: 214.75 E-value: 4.04e-65
drug resistance transporter, EmrB/QacA subfamily; This subfamily of drug efflux proteins, a ...
27-427
3.75e-55
drug resistance transporter, EmrB/QacA subfamily; This subfamily of drug efflux proteins, a part of the major faciliator family, is predicted to have 14 potential membrane-spanning regions. Members with known activities include EmrB (multiple drug resistance efflux pump) in E. coli, FarB (antibacterial fatty acid resistance) in Neisseria gonorrhoeae, TcmA (tetracenomycin C resistance) in Streptomyces glaucescens, etc. In most cases, the efflux pump is described as having a second component encoded in the same operon, such as EmrA of E. coli. [Cellular processes, Toxin production and resistance, Transport and binding proteins, Other]
Pssm-ID: 129794 [Multi-domain] Cd Length: 485 Bit Score: 191.44 E-value: 3.75e-55
Bacillus subtilis lincomycin resistance protein (LmrB) and similar multidrug resistance (MDR) ...
28-464
4.04e-65
Bacillus subtilis lincomycin resistance protein (LmrB) and similar multidrug resistance (MDR) transporters of the Major Facilitator Superfamily; This subfamily is composed of multidrug resistance (MDR) transporters including Bacillus subtilis lincomycin resistance protein LmrB, and several proteins from Escherichia coli such as the putative MDR transporters EmrB, MdtD, and YieQ. 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. This subfamily belongs to the Methylenomycin A resistance protein (also called MMR peptide) and similar multidrug resistance (MDR) transporters (MMR-like MDR transporter) 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: 341046 [Multi-domain] Cd Length: 380 Bit Score: 214.75 E-value: 4.04e-65
drug resistance transporter, EmrB/QacA subfamily; This subfamily of drug efflux proteins, a ...
27-427
3.75e-55
drug resistance transporter, EmrB/QacA subfamily; This subfamily of drug efflux proteins, a part of the major faciliator family, is predicted to have 14 potential membrane-spanning regions. Members with known activities include EmrB (multiple drug resistance efflux pump) in E. coli, FarB (antibacterial fatty acid resistance) in Neisseria gonorrhoeae, TcmA (tetracenomycin C resistance) in Streptomyces glaucescens, etc. In most cases, the efflux pump is described as having a second component encoded in the same operon, such as EmrA of E. coli. [Cellular processes, Toxin production and resistance, Transport and binding proteins, Other]
Pssm-ID: 129794 [Multi-domain] Cd Length: 485 Bit Score: 191.44 E-value: 3.75e-55
Methylenomycin A resistance protein (also called MMR peptide) and similar multidrug resistance ...
30-464
2.74e-37
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: 140.39 E-value: 2.74e-37
Saccharomyces cerevisiae Azole resistance protein 1 (Azr1p), and similar multidrug resistance ...
30-425
1.85e-25
Saccharomyces cerevisiae Azole resistance protein 1 (Azr1p), and similar multidrug resistance (MDR) transporters of the Major Facilitator Superfamily; This subfamily is composed of multidrug resistance (MDR) transporters including various Saccharomyces cerevisiae proteins such as azole resistance protein 1 (Azr1p), vacuolar basic amino acid transporter 1 (Vba1p), vacuolar basic amino acid transporter 5 (Vba5p), and Sge1p (also known as Nor1p, 10-N-nonyl acridine orange resistance protein, and crystal violet resistance protein). 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. This subfamily belongs to the Methylenomycin A resistance protein (also called MMR peptide) and similar multidrug resistance (MDR) transporters (MMR-like MDR transporter) 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: 341045 [Multi-domain] Cd Length: 337 Bit Score: 106.49 E-value: 1.85e-25
MFS family permease, includes anhydromuropeptide permease AmpG [Carbohydrate transport and ...
22-299
1.44e-24
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: 103.35 E-value: 1.44e-24
Multidrug transporter MdfA and similar multidrug resistance (MDR) transporters of the Major ...
30-339
2.54e-18
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: 86.48 E-value: 2.54e-18
bacterial MdtG-like and eukaryotic solute carrier 18 (SLC18) family of the Major Facilitator ...
29-412
2.16e-17
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: 83.78 E-value: 2.16e-17
Methylenomycin A resistance protein (also called MMR peptide)-like multidrug resistance (MDR) ...
30-464
2.70e-17
Methylenomycin A resistance protein (also called MMR peptide)-like multidrug resistance (MDR) transporters of the Major Facilitator Superfamily; This subfamily is composed of putative multidrug resistance (MDR) transporters including Chlamydia trachomatis antiseptic resistance protein QacA_2, and Serratia sp. DD3 Bmr3. 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. This subfamily belongs to the Methylenomycin A resistance protein (also called MMR peptide) and similar multidrug resistance (MDR) transporters (MMR-like MDR transporter) 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: 341047 [Multi-domain] Cd Length: 371 Bit Score: 83.40 E-value: 2.70e-17
Purine ribonucleoside efflux pump NepI and similar transporters of the Major Facilitator ...
46-426
1.60e-12
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: 68.73 E-value: 1.60e-12
Yeast Polyamine transporter 1 (Tpo1) and similar multidrug resistance (MDR) transporters of ...
26-198
2.41e-11
Yeast Polyamine transporter 1 (Tpo1) and similar multidrug resistance (MDR) transporters of the Major Facilitator Superfamily; This family is composed of fungal multidrug resistance (MDR) transporters including several proteins from Saccharomyces cerevisiae such as polyamine transporters 1-4 (Tpo1-4), quinidine resistance proteins 1-3 (Qdr1-3), dityrosine transporter 1 (Dtr1), fluconazole resistance protein 1 (Flr1), and protein HOL1. 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, Flr1 confers resistance to the azole derivative fluconazole while Tpo1 confers resistance and adaptation to quinidine and ketoconazole. The polyamine transporters are involved in the detoxification of excess polyamines in the cytoplasm. Tpo1-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: 340881 [Multi-domain] Cd Length: 376 Bit Score: 65.29 E-value: 2.41e-11
Major Facilitator Superfamily; The Major Facilitator Superfamily (MFS) is a large and diverse ...
28-413
2.66e-11
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: 65.14 E-value: 2.66e-11
drug resistance transporter, Bcr/CflA subfamily; This subfamily of drug efflux proteins, a ...
32-198
2.83e-11
drug resistance transporter, Bcr/CflA subfamily; This subfamily of drug efflux proteins, a part of the major faciliator family, is predicted to have 12 membrane-spanning regions. Members with known activity include Bcr (bicyclomycin resistance protein) in E. coli, Flor (chloramphenicol and florfenicol resistance) in Salmonella typhimurium DT104, and CmlA (chloramphenicol resistance) in Pseudomonas sp. plasmid R1033.
Pssm-ID: 273229 [Multi-domain] Cd Length: 385 Bit Score: 65.10 E-value: 2.83e-11
Hexuronate transporter, Glucarate transporter, and similar transporters of the Major ...
22-198
2.73e-10
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: 61.82 E-value: 2.73e-10
Fungal trichothecene efflux pump (TRI12) of the Major Facilitator Superfamily of transporters; ...
102-443
4.64e-10
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: 61.49 E-value: 4.64e-10
Bacillus subtilis multidrug efflux protein YfmO and similar transporters of the Major ...
32-339
1.31e-09
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: 59.89 E-value: 1.31e-09
Escherichia coli YfcJ, YhhS, and similar transporters of the Major Facilitator Superfamily; ...
41-193
5.59e-09
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: 57.60 E-value: 5.59e-09
Saccharomyces cerevisiae low affinity ammonium transporter Amf1p/YOR378W, aminotriazole resistance protein Atr1p, and similar transporters of the Major Facilitator Superfamily; Saccharomyces cerevisiae Amf1p/Ammonium Facilitator 1/YOR378W functions as a low affinity NH4+ transporter. S. cerevisiae aminotriazole resistance protein (Atr1p) is required for controlling sensitivity to aminotriazole; it is a putative component of the machinery responsible for pumping aminotriazole (and possibly other toxic compounds) out of the cell. This subfamily also includes S. cerevisiae YMR279C, a putative boron transporter involved in boron efflux and resistance, and Kluyveromyces lactis Knq1p which is involved in oxidative stress response and iron homeostasis. Amf1p, Atr1p, and YMR279C have been classified as group 1 members of the DHA2 (Drug:H+ Antiporter family 2) family, K. lactis Knq1 as group 2. This subfamily also includes two Aspergillus terreus terrein biosynthesis cluster proteins, efflux pump TerG and TerJ which may be required for efficient secretion of terrein or other secondary metabolites produced by the terrein gene cluster. The Amf1p-like subfamily belongs to the Methylenomycin A resistance protein (also called MMR peptide) and similar multidrug resistance (MDR) transporters (MMR-like MDR transporter) 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: 341029 [Multi-domain] Cd Length: 362 Bit Score: 56.50 E-value: 1.55e-08
D-xylose-proton symporter and similar transporters of the Major Facilitator Superfamily; This ...
24-198
7.77e-08
D-xylose-proton symporter and similar transporters of the Major Facilitator Superfamily; This subfamily includes bacterial transporters such as D-xylose-proton symporter (XylE or XylT), arabinose-proton symporter (AraE), galactose-proton symporter (GalP), major myo-inositol transporter IolT, glucose transport protein, putative metabolite transport proteins YfiG, YncC, and YwtG, and similar proteins. The symporters XylE, AraE, and GalP facilitate the uptake of D-xylose, arabinose, and galactose, respectively, across the boundary membrane with the concomitant transport of protons into the cell. IolT is involved in polyol metabolism and myo-inositol degradation into acetyl-CoA. The XylE-like subfamily belongs to the Glucose transporter -like (GLUT-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: 340917 [Multi-domain] Cd Length: 383 Bit Score: 54.11 E-value: 7.77e-08
Glucose transporters (GLUTs) and other similar sugar transporters of the Major Facilitator ...
27-196
9.72e-07
Glucose transporters (GLUTs) and other similar sugar transporters of the Major Facilitator Superfamily; This family is composed of glucose transporters (GLUTs) and other sugar transporters including fungal hexose transporters (HXT), bacterial xylose transporter (XylE), plant sugar transport proteins (STP) and polyol transporters (PLT), H(+)-myo-inositol cotransporter (HMIT), and similar proteins. GLUTs, also called Solute carrier family 2, facilitated glucose transporters (SLC2A), are a family of proteins that facilitate the transport of hexoses such as glucose and fructose. There are fourteen GLUTs found in humans; they display different substrate specificities and tissue expression. They have been categorized into three classes based on sequence similarity: Class 1 (GLUTs 1-4, 14); Class 2 (GLUTs 5, 7, 9, and 11); and Class 3 (GLUTs 6, 8, 10, 12, and HMIT). GLUT proteins are comprised of about 500 amino acid residues, possess a single N-linked oligosaccharide, and have 12 transmembrane segments. The GLUT-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: 340873 [Multi-domain] Cd Length: 365 Bit Score: 50.65 E-value: 9.72e-07
Metazoan Synaptic vesicle glycoprotein 2 (SV2) and related small molecule transporters of the ...
27-197
9.78e-07
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: 50.68 E-value: 9.78e-07
Putative arabinose efflux permease family transporters of the Major Facilitator Superfamily; ...
59-228
3.17e-06
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: 49.11 E-value: 3.17e-06
Pantothenate transporter FEN2 and similar transporters of the Major Facilitator Superfamily; ...
33-197
8.30e-06
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: 48.01 E-value: 8.30e-06
Escherichia coli inner membrane transport protein YajR and similar multidrug-efflux ...
79-224
3.43e-05
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: 46.05 E-value: 3.43e-05
4-hydroxybenzoate transporter PcaK and similar transporters of the Major Facilitator ...
26-194
7.05e-05
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: 44.88 E-value: 7.05e-05
Multidrug resistance protein MdtH and similar multidrug resistance (MDR) transporters of the ...
49-225
1.73e-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: 43.76 E-value: 1.73e-04
bacterial MdtG-like and eukaryotic solute carrier 18 (SLC18) family of the Major Facilitator ...
79-197
3.22e-04
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: 42.95 E-value: 3.22e-04
Fungal trichothecene efflux pump (TRI12); This family consists of several fungal specific ...
152-227
5.21e-04
Fungal trichothecene efflux pump (TRI12); This family consists of several fungal specific trichothecene efflux pump proteins. Many of the genes involved in trichothecene toxin biosynthesis in Fusarium sporotrichioides are present within a gene cluster.It has been suggested that TRI12 may play a role in F. sporotrichioides self-protection against trichothecenes.
Pssm-ID: 115279 [Multi-domain] Cd Length: 598 Bit Score: 42.73 E-value: 5.21e-04
Glucose transporter type 8, a Class 3 GLUT, of the Major Facilitator Superfamily of ...
79-178
1.25e-03
Glucose transporter type 8, a Class 3 GLUT, of the Major Facilitator Superfamily of transporters; Glucose transporter type 8 (GLUT8) is also called Solute carrier family 2, facilitated glucose transporter member 8 (SLC2A8) or glucose transporter type X1 (GLUTX1). It is classified as a Class 3 GLUT protein and is an insulin-regulated facilitative glucose transporter predominantly expressed in testis and brain. It can also transport fructose and galactose. SLC2A8 knockout mice were viable, developed normally, and display only a very mild phenotype, including mild alterations in the brain (increased proliferation of hippocampal neurons), heart (impaired transmission of electrical wave through the atrium), and sperm cells (reduced number of motile sperm cells). GLUT proteins are comprised of about 500 amino acid residues, possess a single N-linked oligosaccharide, and have 12 transmembrane segments. They belong to the Glucose transporter -like (GLUT-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: 340991 [Multi-domain] Cd Length: 416 Bit Score: 41.02 E-value: 1.25e-03
Glucose transporter (GLUT) types 6 and 8, Class 3 GLUTs, and similar transporters of the Major ...
47-211
1.69e-03
Glucose transporter (GLUT) types 6 and 8, Class 3 GLUTs, and similar transporters of the Major Facilitator Superfamily; This subfamily is composed of glucose transporter type 6 (GLUT6), GLUT8, plant early dehydration-induced gene ERD6-like proteins, and similar insect proteins including facilitated trehalose transporter Tret1-1. GLUTs, also called Solute carrier family 2, facilitated glucose transporters (SLC2A), are a family of proteins that facilitate the transport of hexoses such as glucose and fructose. There are fourteen GLUTs found in humans; they display different substrate specificities and tissue expression. They have been categorized into three classes based on sequence similarity: Class 1 (GLUTs 1-4, 14); Class 2 (GLUTs 5, 7, 9, and 11); and Class 3 (GLUTs 6, 8, 10, 12, and HMIT). Insect Tret1-1 is a low-capacity facilitative transporter for trehalose that mediates the transport of trehalose synthesized in the fat body and the incorporation of trehalose into other tissues that require a carbon source. GLUT proteins are comprised of about 500 amino acid residues, possess a single N-linked oligosaccharide, and have 12 transmembrane segments. They belong to the Glucose transporter -like (GLUT-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: 340916 [Multi-domain] Cd Length: 436 Bit Score: 40.64 E-value: 1.69e-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: 40.25 E-value: 1.97e-03
Bacillus subtilis multidrug efflux protein YfmO and similar transporters of the Major ...
80-193
2.69e-03
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: 39.86 E-value: 2.69e-03
Escherichia coli YfcJ, YhhS, and similar transporters of the Major Facilitator Superfamily; ...
79-197
2.71e-03
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: 39.88 E-value: 2.71e-03
Macrolide efflux protein A and similar proteins of the Major Facilitator Superfamily of ...
79-199
3.75e-03
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: 39.52 E-value: 3.75e-03
Glucose transporter (GLUT) types 10 and 12, Class 3 GLUTs, and similar transporters of the ...
27-199
4.07e-03
Glucose transporter (GLUT) types 10 and 12, Class 3 GLUTs, and similar transporters of the Major Facilitator Superfamily; This subfamily is composed of glucose transporter type 10, GLUT12, plant polyol transporters (PLTs), and similar proteins. GLUTs, also called Solute carrier family 2, facilitated glucose transporters (SLC2A), are a family of proteins that facilitate the transport of hexoses such as glucose and fructose. There are fourteen GLUTs found in humans; they display different substrate specificities and tissue expression. They have been categorized into three classes based on sequence similarity: Class 1 (GLUTs 1-4, 14); Class 2 (GLUTs 5, 7, 9, and 11); and Class 3 (GLUTs 6, 8, 10, 12, and HMIT). GLUT proteins are comprised of about 500 amino acid residues, possess a single N-linked oligosaccharide, and have 12 transmembrane segments. They belong to the Glucose transporter -like (GLUT-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: 340920 [Multi-domain] Cd Length: 389 Bit Score: 39.26 E-value: 4.07e-03
Purine ribonucleoside efflux pump NepI and similar transporters of the Major Facilitator ...
79-193
4.63e-03
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: 39.07 E-value: 4.63e-03
Multidrug resistance protein MdtG and similar multidrug resistance (MDR) transporters of the ...
79-197
8.02e-03
Multidrug resistance protein MdtG and similar multidrug resistance (MDR) transporters of the Major Facilitator Superfamily; This subfamily is composed of Escherichia coli multidrug resistance protein MdtG, Streptococcus pneumoniae multidrug resistance efflux pump PmrA, and similar multidrug resistance (MDR) transporters from bacteria. 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. MdtG confers resistance to fosfomycin and deoxycholate. PmrA serves as an efflux pump for various substrates and is associated with fluoroquinolone resistance. MdtG-like MDR 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: 340949 [Multi-domain] Cd Length: 380 Bit Score: 38.40 E-value: 8.02e-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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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.
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(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.
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