Uncharacterized bacterial solute carrier 5 subfamily; putative solute-binding domain; SLC5 (also called the sodium/glucose cotransporter family or solute sodium symporter family) is a family of proteins that co-transports Na+ with sugars, amino acids, inorganic ions or vitamins. Prokaryotic members of this family include Vibrio parahaemolyticus glucose/galactose (vSGLT), and Escherichia coli proline (PutP) and pantothenate (PutF) cotransporters. One member of the SLC5 family, human SGLT3, has been characterized as a glucose sensor and not a transporter. This subfamily belongs to the solute carrier 5 (SLC5) transporter family.
Pssm-ID: 271374 Cd Length: 488 Bit Score: 519.37 E-value: 0e+00
Sodium:solute symporter family; This family includes Swiss:P33413 which is not in the Prosite ...
52-467
4.26e-82
Sodium:solute symporter family; This family includes Swiss:P33413 which is not in the Prosite entry. Membership of this family is supported by a significant blast score.
Pssm-ID: 109527 [Multi-domain] Cd Length: 406 Bit Score: 261.89 E-value: 4.26e-82
probable sodium:solute symporter, VC_2705 subfamily; This family belongs to a larger family of ...
30-529
2.71e-59
probable sodium:solute symporter, VC_2705 subfamily; This family belongs to a larger family of transporters of the sodium:solute symporter superfamily, TC 2.A.21. Members of this strictly bacterial protein subfamily are found almost invariably immediately downstream from a member of family TIGR03647. Occasionally, the two genes are fused.
Pssm-ID: 274698 Cd Length: 552 Bit Score: 205.95 E-value: 2.71e-59
Uncharacterized bacterial solute carrier 5 subfamily; putative solute-binding domain; SLC5 (also called the sodium/glucose cotransporter family or solute sodium symporter family) is a family of proteins that co-transports Na+ with sugars, amino acids, inorganic ions or vitamins. Prokaryotic members of this family include Vibrio parahaemolyticus glucose/galactose (vSGLT), and Escherichia coli proline (PutP) and pantothenate (PutF) cotransporters. One member of the SLC5 family, human SGLT3, has been characterized as a glucose sensor and not a transporter. This subfamily belongs to the solute carrier 5 (SLC5) transporter family.
Pssm-ID: 271374 Cd Length: 488 Bit Score: 519.37 E-value: 0e+00
Sodium:solute symporter family; This family includes Swiss:P33413 which is not in the Prosite ...
52-467
4.26e-82
Sodium:solute symporter family; This family includes Swiss:P33413 which is not in the Prosite entry. Membership of this family is supported by a significant blast score.
Pssm-ID: 109527 [Multi-domain] Cd Length: 406 Bit Score: 261.89 E-value: 4.26e-82
probable sodium:solute symporter, VC_2705 subfamily; This family belongs to a larger family of ...
30-529
2.71e-59
probable sodium:solute symporter, VC_2705 subfamily; This family belongs to a larger family of transporters of the sodium:solute symporter superfamily, TC 2.A.21. Members of this strictly bacterial protein subfamily are found almost invariably immediately downstream from a member of family TIGR03647. Occasionally, the two genes are fused.
Pssm-ID: 274698 Cd Length: 552 Bit Score: 205.95 E-value: 2.71e-59
Solute carrier 5 family, sodium/glucose transporters and related proteins; solute-binding ...
23-490
6.26e-53
Solute carrier 5 family, sodium/glucose transporters and related proteins; solute-binding domain; This family represents the solute-binding domain of SLC5 proteins (also called the sodium/glucose cotransporter family or solute sodium symporter family) that co-transport Na+ with sugars, amino acids, inorganic ions or vitamins. Family members include: the human glucose (SGLT1, 2, 4, 5), chiro-inositol (SGLT5), myo-inositol (SMIT), choline (CHT), iodide (NIS), multivitamin (SMVT), and monocarboxylate (SMCT) cotransporters, as well as Vibrio parahaemolyticus glucose/galactose (vSGLT), and Escherichia coli proline (PutP) and pantothenate (PutF) cotransporters. Vibrio parahaemolyticus Na(+)/galactose cotransporter (vSGLT) has 13 transmembrane helices (TMs): TM-1, an inverted topology repeat: TMs1-5 and TMs6-10, and TMs 11-12 (TMs numbered to conform to the solute carrier 6 family Aquifex aeolicus LeuT). One member of this family, human SGLT3, has been characterized as a glucose sensor and not a transporter. Members of this family are important in human physiology and disease.
Pssm-ID: 271357 [Multi-domain] Cd Length: 454 Bit Score: 186.22 E-value: 6.26e-53
transporter, SSS family; The Solute:Sodium Symporter (SSS) Family (TC 2.A.21) Members of the ...
55-467
2.63e-45
transporter, SSS family; The Solute:Sodium Symporter (SSS) Family (TC 2.A.21) Members of the SSS family catalyze solute:Na+ symport. The solutes transported may be sugars, amino acids, nucleosides, inositols, vitamins, urea or anions, depending on the system. Members of the SSS family have been identified in bacteria, archaea and animals, and all functionally well characterized members catalyze solute uptake via Na+ symport. Proteins of the SSS generally share a core of 13 TMSs, but different members of the family may have different numbers of TMSs. A 13 TMS topology with a periplasmic N-terminus and a cytoplasmic C-terminus has been experimentally determined for the proline:Na+ symporter, PutP, of E. coli. [Transport and binding proteins, Cations and iron carrying compounds]
Pssm-ID: 273282 [Multi-domain] Cd Length: 407 Bit Score: 164.40 E-value: 2.63e-45
Na(+)/proline cotransporter PutP and related proteins; solute binding domain; Escherichia coli ...
28-483
8.54e-44
Na(+)/proline cotransporter PutP and related proteins; solute binding domain; Escherichia coli PutP catalyzes the Na+-coupled uptake of proline with a stoichiometry of 1:1. The putP gene is part of the put operon; this operon in addition encodes a proline dehydrogenase, allowing the use of proline as a source of nitrogen and/or carbon. This subfamily also includes the Bacillus subtilis Na+/proline cotransporter (OpuE) which has an osmoprotective instead of catabolic role. Expression of the opuE gene is under osmotic control and different sigma factors contribute to its regulation; it is also a putative CcpA-activated gene. This subfamily belongs to the solute carrier 5 (SLC5) transporter family.
Pssm-ID: 271369 Cd Length: 464 Bit Score: 161.52 E-value: 8.54e-44
Uncharacterized bacterial solute carrier 5 subfamily; putative solute-binding domain; SLC5 (also called the sodium/glucose cotransporter family or solute sodium symporter family) is a family of proteins that co-transports Na+ with sugars, amino acids, inorganic ions or vitamins. Prokaryotic members of this family include Vibrio parahaemolyticus glucose/galactose (vSGLT), and Escherichia coli proline (PutP) and pantothenate (PutF) cotransporters. One member of the SLC5 family, human SGLT3, has been characterized as a glucose sensor and not a transporter. This subfamily belongs to the solute carrier 5 (SLC5) transporter family.
Pssm-ID: 271371 Cd Length: 493 Bit Score: 94.18 E-value: 1.94e-20
Na(+)- and Cl(-)-dependent choline cotransporter CHT and related proteins; solute-binding ...
25-484
1.11e-19
Na(+)- and Cl(-)-dependent choline cotransporter CHT and related proteins; solute-binding domain; Na+/choline co-transport by CHT is Cl- dependent. Human CHT (also called CHT1) is encoded by the SLC5A7 gene, and is expressed in the central nervous system. hCHT1-mediated choline uptake may be the rate-limiting step in acetylcholine synthesis, and essential for cholinergic transmission. Changes in this choline uptake in cortical neurons may contribute to Alzheimer's dementia. This subfamily belongs to the solute carrier 5 (SLC5) transporter family.
Pssm-ID: 271368 [Multi-domain] Cd Length: 464 Bit Score: 91.82 E-value: 1.11e-19
Uncharacterized bacterial solute carrier 5 subfamily; putative solute-binding domain; SLC5 (also called the sodium/glucose cotransporter family or solute sodium symporter family) is a family of proteins that co-transports Na+ with sugars, amino acids, inorganic ions or vitamins. Prokaryotic members of this family include Vibrio parahaemolyticus glucose/galactose (vSGLT), and Escherichia coli proline (PutP) and pantothenate (PutF) cotransporters. One member of the SLC5 family, human SGLT3, has been characterized as a glucose sensor and not a transporter. This subfamily belongs to the solute carrier 5 (SLC5) transporter family.
Pssm-ID: 271372 Cd Length: 496 Bit Score: 86.57 E-value: 6.89e-18
Na(+)/pantothenate cotransporters: PanF of Escherichia coli and related proteins; solute ...
24-470
7.35e-17
Na(+)/pantothenate cotransporters: PanF of Escherichia coli and related proteins; solute binding domain; PanF catalyzes the Na+-coupled uptake of extracellular pantothenate for coenzyme A biosynthesis in cells. This subfamily belongs to the solute carrier 5 (SLC5) transporter family.
Pssm-ID: 212037 Cd Length: 472 Bit Score: 83.02 E-value: 7.35e-17
Uncharacterized bacterial solute carrier 5 subfamily; putative solute-binding domain; SLC5 (also called the sodium/glucose cotransporter family or solute sodium symporter family) is a family of proteins that co-transports Na+ with sugars, amino acids, inorganic ions or vitamins. Prokaryotic members of this family include Vibrio parahaemolyticus glucose/galactose (vSGLT), and Escherichia coli proline (PutP) and pantothenate (PutF) cotransporters. One member of the SLC5 family, human SGLT3, has been characterized as a glucose sensor and not a transporter. This subfamily belongs to the solute carrier 5 (SLC5) transporter family.
Pssm-ID: 271373 Cd Length: 454 Bit Score: 76.10 E-value: 1.32e-14
uncharacterized subgroup of the Na(+)/iodide (NIS) cotransporter subfamily; putative ...
26-499
1.13e-13
uncharacterized subgroup of the Na(+)/iodide (NIS) cotransporter subfamily; putative solute-binding domain; Proteins belonging to the same subfamily as this uncharacterized subgroup include i) NIS, which transports I-, and other anions including ClO4-, SCN-, and Br-, ii) SMVT, which transports biotin, pantothenic acid and lipoate, and iii) the Na(+)/monocarboxylate cotransporters, SMCT1 and 2. SMCT1 is a high-affinity transporter while SMCT2 is a low-affinity transporter. This subgroup belongs to the solute carrier 5 (SLC5) transporter family.
Pssm-ID: 271385 [Multi-domain] Cd Length: 473 Bit Score: 73.40 E-value: 1.13e-13
uncharacterized subgroup of the Na(+)/iodide (NIS) cotransporter subfamily; putative ...
28-483
4.21e-12
uncharacterized subgroup of the Na(+)/iodide (NIS) cotransporter subfamily; putative solute-binding domain; Proteins belonging to the same subfamily as this uncharacterized subgroup include i) NIS, which transports I-, and other anions including ClO4-, SCN-, and Br-, ii) SMVT, which transports biotin, pantothenic acid and lipoate, and iii) the Na(+)/monocarboxylate cotransporters SMCT1 and 2. SMCT1 is a high-affinity transporter while SMCT2 is a low-affinity transporter. This subgroup belongs to the solute carrier 5 (SLC5) transporter family.
Pssm-ID: 271386 [Multi-domain] Cd Length: 473 Bit Score: 68.34 E-value: 4.21e-12
uncharacterized subgroup of the Na(+)/iodide (NIS) cotransporter subfamily; putative ...
28-497
1.27e-11
uncharacterized subgroup of the Na(+)/iodide (NIS) cotransporter subfamily; putative solute-binding domain; Proteins belonging to the same subfamily as this uncharacterized subgroup include i) NIS, which transports I-, and other anions including ClO4-, SCN-, and Br-, ii) SMVT, which transports biotin, pantothenic acid and lipoate, and iii) the Na(+)/monocarboxylate cotransporters SMCT1 and 2. SMCT1 is a high-affinity transporter while SMCT2 is a low-affinity transporter. This subgroup belongs to the solute carrier 5 (SLC5) transporter family.
Pssm-ID: 271384 [Multi-domain] Cd Length: 479 Bit Score: 66.85 E-value: 1.27e-11
Na(+)/iodide (NIS) and Na(+)/multivitamin (SMVT) cotransporters, and related proteins; solute ...
24-425
1.35e-11
Na(+)/iodide (NIS) and Na(+)/multivitamin (SMVT) cotransporters, and related proteins; solute binding domain; NIS (product of the SLC5A5 gene) transports I-, and other anions including ClO4-, SCN-, and Br-. SMVT (product of the SLC5A6 gene) transports biotin, pantothenic acid and lipoate. This subfamily also includes SMCT1 and 2. SMCT1(the product of the SLC5A8 gene) is a high-affinity transporter of various monocarboxylates including lactate and pyruvate, short-chain fatty acids, ketone bodies, nicotinate and its structural analogs, pyroglutamate, benzoate and its derivatives, and iodide. SMCT2 (product of the SLC5A12 gene) is a low-affinity transporter for short-chain fatty acids, lactate, pyruvate, and nicotinate. This subfamily belongs to the solute carrier 5 (SLC5) transporter family.
Pssm-ID: 271361 [Multi-domain] Cd Length: 472 Bit Score: 66.81 E-value: 1.35e-11
Na(+)/urea-polyamine cotransporter DUR3, and related proteins; solute-binding domain; Dur3 is ...
24-472
1.06e-10
Na(+)/urea-polyamine cotransporter DUR3, and related proteins; solute-binding domain; Dur3 is the yeast plasma membrane urea transporter. Saccharomyces cerevisiae DUR3 also transports polyamine. The polyamine uptake of S. cerevisiae DUR3 is activated upon its phosphorylation by polyamine transport protein kinase 2 (PTK2). S. cerevisiae DUR3 also appears to play a role in regulating the cellular boron concentration. This subfamily belongs to the solute carrier 5 (SLC5) transporter family.
Pssm-ID: 271370 Cd Length: 493 Bit Score: 64.14 E-value: 1.06e-10
Na(+)/glucose cotransporter SGLT1 and related proteins; solute binding domain; This subfamily ...
25-474
7.35e-09
Na(+)/glucose cotransporter SGLT1 and related proteins; solute binding domain; This subfamily includes the solute-binding domain of SGLT proteins that cotransport Na+ with various solutes. Its members include: the human glucose (SGLT1, -2, -4, -5 ), chiro-inositol (SGLT5), and myo-inositol (SMIT) cotransporters. It also includes human SGLT3 which has been characterized as a glucose sensor and not a transporter. It belongs to the solute carrier 5 (SLC5) transporter family.
Pssm-ID: 271363 Cd Length: 538 Bit Score: 58.36 E-value: 7.35e-09
Na(+)/iodide cotransporter NIS and related proteins; solute-binding domain; NIS (product of ...
27-215
2.49e-07
Na(+)/iodide cotransporter NIS and related proteins; solute-binding domain; NIS (product of the SLC5A5 gene) transports I-, and other anions including ClO4-, SCN-, and Br-. NIS is expressed in the thyroid, colon, ovary, and in human breast cancers. It mediates the active transport and the concentration of iodide from the blood into thyroid follicular cells, a fundamental step in thyroid hormone biosynthesis, and is the basis of radioiodine therapy for thyroid cancer. Mutation in the SLC5A5 gene can result in a form of thyroid hormone dysgenesis. Human NIS exists mainly as a dimer stabilized by a disulfide bridge. This subgroup belongs to the solute carrier 5 (SLC5) transporter family.
Pssm-ID: 271393 Cd Length: 535 Bit Score: 53.31 E-value: 2.49e-07
Na(+)/monocarboxylate cotransporters SMCT1 and 2 and related proteins; solute-binding domain; ...
27-211
7.76e-06
Na(+)/monocarboxylate cotransporters SMCT1 and 2 and related proteins; solute-binding domain; SMCT1 is a high-affinity transporter of various monocarboxylates including lactate and pyruvate, short-chain fatty acids, ketone bodies, nicotinate and its structural analogs, pyroglutamate, benzoate and its derivatives, and iodide. Human SMCT1 (hSMCT1, also called AIT) is encoded by the tumor suppressor gene SLC5A8. SMCT1 is expressed in the colon, small intestine, kidney, thyroid gland, retina, and brain. SMCT1 may contribute to the intestinal/colonic and oral absorption of monocarboxylate drugs. It also mediates iodide transport from thyrocyte into the colloid lumen in thyroid gland and, through transporting L-lactate and ketone bodies, helps maintain the energy status and the function of neurons. SMCT2 is a low-affinity transporter for short-chain fatty acids, lactate, pyruvate, and nicotinate. hSMCT2 is encoded by the SLC5A12 gene. SMCT2 is expressed in the kidney, small intestine, skeletal muscle, and retina. In the kidney, SMCT2 may initiate lactate absorption in the early parts of the tubule, SMCT1 in the latter parts of the tubule. In the retina, SMCT1 and SMCT2 may play a differential role in monocarboxylate transport in a cell type-specific manner. This subgroup belongs to the solute carrier 5 (SLC5) transporter family.
Pssm-ID: 271395 Cd Length: 538 Bit Score: 48.73 E-value: 7.76e-06
Na(+)/monocarboxylate cotransporter SMCT2 and related proteins; solute-binding domain; SMCT2 ...
27-215
3.48e-05
Na(+)/monocarboxylate cotransporter SMCT2 and related proteins; solute-binding domain; SMCT2 is a low-affinity transporter for short-chain fatty acids, lactate, pyruvate, and nicotinate. Human SMCT2 (hSMCT2) is encoded by the SLC5A12 gene. SMCT2 is expressed in the kidney, small intestine, skeletal muscle, and retina. In the kidney, it is expressed in the apical membrane of the proximal convoluted tubule, along the entire length of the tubule (in contrast to the high-affinity monocarboxylate transporter SMCT1, belonging to a different family, which is limited to the S3 segment of the tubule). SMCT2 may initiate lactate absorption in the early parts of the tubule. In the retina, SMCT1 and SMCT2 may play a differential role in monocarboxylate transport in a cell type-specific manner, SMCT2 is expressed exclusively in Muller cells. Nicotine transport by hSMCT2 is inhibited by several non-steroidal anti-inflammatory drugs. This subgroup belongs to the solute carrier 5 (SLC5) transporter family.
Pssm-ID: 212089 [Multi-domain] Cd Length: 529 Bit Score: 46.38 E-value: 3.48e-05
uncharacterized SLC5 subfamily, Escherichia coli YidK-like; solute binding domain; Uncharacterized subfamily of the solute binding domain of the solute carrier 5 (SLC5) transporter family (also called the sodium/glucose cotransporter family or solute sodium symporter family) that co-transports Na+ with sugars, amino acids, inorganic ions or vitamins. One member of the SLC5 family, human SGLT3, has been characterized as a glucose sensor and not a transporter. This subfamily includes the uncharacterized Escherichia coli YidK protein, and belongs to the solute carrier 5 (SLC5) transporter family.
Pssm-ID: 271362 Cd Length: 472 Bit Score: 46.38 E-value: 3.94e-05
Na(+)/monocarboxylate cotransporter SMCT1 and related proteins; solute-binding domain; SMCT1 ...
27-211
2.81e-04
Na(+)/monocarboxylate cotransporter SMCT1 and related proteins; solute-binding domain; SMCT1 is a high-affinity transporter of various monocarboxylates including lactate and pyruvate, short-chain fatty acids, ketone bodies, nicotinate and its structural analogs, pyroglutamate, benzoate and its derivatives, and iodide. Human SMCT1 (hSMCT1, also called AIT) is encoded by the tumor suppressor gene SLC5A8. Its expression is under the control of the C/EBP transcription factor. Its tumor-suppressive role is related to uptake of butyrate, propionate, and pyruvate, these latter are inhibitors of histone deacetylases. SMCT1 is expressed in the colon, small intestine, kidney, thyroid gland, retina, and brain. SMCT1 may contribute to the intestinal/colonic and oral absorption of monocarboxylate drugs. SMCT1 also mediates iodide transport from thyrocyte into the colloid lumen in thyroid gland and through transporting l-lactate and ketone bodies helps maintain the energy status and the function of neurons. In the kidney its expression is limited to the S3 segment of the proximal convoluted tubule (in contrast to the low-affinity monocarboxylate transporter SMCT2, belonging to a different family, which is expressed along the entire length of the tubule). In the retina, SMCT1 and SMCT2 may play a differential role in monocarboxylate transport in a cell type-specific manner, SMCT1 is expressed predominantly in retinal neurons and in retinal pigmented epithelial (RPE) cells. This subgroup belongs to the solute carrier 5 (SLC5) transporter family.
Pssm-ID: 271402 Cd Length: 542 Bit Score: 43.68 E-value: 2.81e-04
Vibrio parahaemolyticus Na(+)/galactose cotransporter (vSGLT) and related proteins; solute ...
27-482
1.03e-03
Vibrio parahaemolyticus Na(+)/galactose cotransporter (vSGLT) and related proteins; solute binding domain; vSGLT transports D-galactose, D-glucose, and alpha-D-fucose, with a sugar specificity in the order of D-galactose >D-fucose >D-glucose. It transports one Na+ ion for each sugar molecule, and appears to function as a monomer. vSGLT has 13 transmembrane helices (TMs): TM-1, an inverted topology repeat: TMs1-5 and TMs6-10, and TMs 11-12 (TMs numbered to conform to the solute carrier 6 family Aquifex aeolicus LeuT). This subfamily belongs to the solute carrier 5 (SLC5) transporter family.
Pssm-ID: 271360 Cd Length: 523 Bit Score: 41.91 E-value: 1.03e-03
Na(+)/glucose cotransporter SGLT1;solute binding domain; Human SGLT1 (hSGLT1) is a ...
360-473
1.58e-03
Na(+)/glucose cotransporter SGLT1;solute binding domain; Human SGLT1 (hSGLT1) is a high-affinity/low-capacity glucose transporter, which can also transport galactose. In the transport mechanism, two Na+ ions first bind to the extracellular side of the transporter and induce a conformational change in the glucose binding site. This results in an increased affinity for glucose. A second conformational change in the transporter follows, bringing the Na+ and glucose binding sites to the inner surface of the membrane. Glucose is then released, followed by the Na+ ions. In the process, hSGLT1 is also able to transport water and urea and may be a major pathway for transport of these across the intestinal brush-border membrane. hSGLT1 is encoded by the SLC5A1 gene and expressed mostly in the intestine, but also in the trachea, kidney, heart, brain, testis, and prostate. The WHO/UNICEF oral rehydration solution (ORS) for the treatment of secretory diarrhea contains salt and glucose. The glucose, along with sodium ions, is transported by hSGLT1 and water is either co-transported along with these or follows by osmosis. Mutations in SGLT1 are associated with intestinal glucose galactose malabsorption (GGM). Up-regulation of intestinal SGLT1 may protect against enteric infections. SGLT1 is expressed in colorectal, head and neck, and prostate tumors. Epidermal growth factor receptor (EGFR) functions in cell survival by stabilizing SGLT1, and thereby maintaining intracellular glucose levels. SGLT1 is predicted to have 14 membrane-spanning regions. This subgroup belongs to the solute carrier 5 (SLC5)transporter family.
Pssm-ID: 271379 Cd Length: 636 Bit Score: 41.46 E-value: 1.58e-03
Na(+)/glucose cotransporter SGLT4 and related proteins; solute-binding domain; Human SGLT4 ...
360-472
4.13e-03
Na(+)/glucose cotransporter SGLT4 and related proteins; solute-binding domain; Human SGLT4 (hSGLT4) has been reported to be a low-affinity glucose transporter with unusual sugar selectivity: it transports D-mannose but not galactose or 3-O-methyl-D-glucoside. It is encoded by the SLC5A9 gene and is expressed in intestine, kidney, liver, brain, lung, trachea, uterus, and pancreas. hSLGT4 is predicted to contain 14 membrane-spanning regions. This subgroup belongs to the solute carrier 5 (SLC5 )transporter family.
Pssm-ID: 271380 Cd Length: 605 Bit Score: 39.92 E-value: 4.13e-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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