cation:proton antiporter family protein functions in maintaining cation homeostasis and the pH of actively metabolizing cells; it may also be involved in regulating cell volume
Sodium/hydrogen exchanger family; Na/H antiporters are key transporters in maintaining the pH ...
518-1032
0e+00
Sodium/hydrogen exchanger family; Na/H antiporters are key transporters in maintaining the pH of actively metabolising cells. The molecular mechanisms of antiport are unclear. These antiporters contain 10-12 transmembrane regions (M) at the amino-terminus and a large cytoplasmic region at the carboxyl terminus. The transmembrane regions M3-M12 share identity with other members of the family. The M6 and M7 regions are highly conserved. Thus, this is thought to be the region that is involved in the transport of sodium and hydrogen ions. The cytoplasmic region has little similarity throughout the family.
The actual alignment was detected with superfamily member TIGR00840:
Pssm-ID: 470090 [Multi-domain] Cd Length: 559 Bit Score: 665.71 E-value: 0e+00
sodium/hydrogen exchanger 3; The Monovalent Cation:Proton Antiporter-1 (CPA1) Family (TC 2.A. ...
518-1032
0e+00
sodium/hydrogen exchanger 3; The Monovalent Cation:Proton Antiporter-1 (CPA1) Family (TC 2.A.36)The CPA1 family is a large family of proteins derived from Gram-positive and Gram-negative bacteria, blue green bacteria, yeast, plants and animals.Transporters from eukaryotes have been functionally characterized, and all of these catalyze Na+:H+ exchange. Their primary physiological functions may be in(1) cytoplasmic pH regulation, extruding the H+ generated during metabolism, and (2) salt tolerance (in plants), due to Na+ uptake into vacuoles.This model is specific for the eukaryotic members members of this family. [Transport and binding proteins, Cations and iron carrying compounds]
Pssm-ID: 273294 [Multi-domain] Cd Length: 559 Bit Score: 665.71 E-value: 0e+00
Sodium/hydrogen exchanger family; Na/H antiporters are key transporters in maintaining the pH ...
528-930
1.61e-95
Sodium/hydrogen exchanger family; Na/H antiporters are key transporters in maintaining the pH of actively metabolising cells. The molecular mechanisms of antiport are unclear. These antiporters contain 10-12 transmembrane regions (M) at the amino-terminus and a large cytoplasmic region at the carboxyl terminus. The transmembrane regions M3-M12 share identity with other members of the family. The M6 and M7 regions are highly conserved. Thus, this is thought to be the region that is involved in the transport of sodium and hydrogen ions. The cytoplasmic region has little similarity throughout the family.
Pssm-ID: 425982 [Multi-domain] Cd Length: 377 Bit Score: 313.81 E-value: 1.61e-95
Bacterial fucose permease, eukaryotic Major facilitator superfamily domain-containing protein ...
565-917
8.41e-06
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: 50.01 E-value: 8.41e-06
sodium/hydrogen exchanger 3; The Monovalent Cation:Proton Antiporter-1 (CPA1) Family (TC 2.A. ...
518-1032
0e+00
sodium/hydrogen exchanger 3; The Monovalent Cation:Proton Antiporter-1 (CPA1) Family (TC 2.A.36)The CPA1 family is a large family of proteins derived from Gram-positive and Gram-negative bacteria, blue green bacteria, yeast, plants and animals.Transporters from eukaryotes have been functionally characterized, and all of these catalyze Na+:H+ exchange. Their primary physiological functions may be in(1) cytoplasmic pH regulation, extruding the H+ generated during metabolism, and (2) salt tolerance (in plants), due to Na+ uptake into vacuoles.This model is specific for the eukaryotic members members of this family. [Transport and binding proteins, Cations and iron carrying compounds]
Pssm-ID: 273294 [Multi-domain] Cd Length: 559 Bit Score: 665.71 E-value: 0e+00
Sodium/hydrogen exchanger family; Na/H antiporters are key transporters in maintaining the pH ...
528-930
1.61e-95
Sodium/hydrogen exchanger family; Na/H antiporters are key transporters in maintaining the pH of actively metabolising cells. The molecular mechanisms of antiport are unclear. These antiporters contain 10-12 transmembrane regions (M) at the amino-terminus and a large cytoplasmic region at the carboxyl terminus. The transmembrane regions M3-M12 share identity with other members of the family. The M6 and M7 regions are highly conserved. Thus, this is thought to be the region that is involved in the transport of sodium and hydrogen ions. The cytoplasmic region has little similarity throughout the family.
Pssm-ID: 425982 [Multi-domain] Cd Length: 377 Bit Score: 313.81 E-value: 1.61e-95
Na+/H+ antiporter, bacterial form; The Monovalent Cation:Proton Antiporter-1 (CPA1) Family (TC ...
553-940
1.24e-38
Na+/H+ antiporter, bacterial form; The Monovalent Cation:Proton Antiporter-1 (CPA1) Family (TC 2.A.36) The CPA1 family is a large family of proteins derived from Gram-positive and Gram-negative bacteria, blue green bacteria, yeast, plants and animals. Transporters from eukaryotes have been functionally characterized, and all of these catalyze Na+:H+ exchange. Their primary physiological functions may be in (1) cytoplasmic pH regulation, extruding the H+ generated during metabolism, and (2) salt tolerance (in plants), due to Na+ uptake into vacuoles. This model is specific for the bacterial members of this family. [Transport and binding proteins, Cations and iron carrying compounds]
Pssm-ID: 129911 [Multi-domain] Cd Length: 525 Bit Score: 152.73 E-value: 1.24e-38
NhaP-type Na+/H+ and K+/H+ antiporter with C-terminal TrkAC and CorC domains [Energy ...
610-942
1.02e-12
NhaP-type Na+/H+ and K+/H+ antiporter with C-terminal TrkAC and CorC domains [Energy production and conversion, Inorganic ion transport and metabolism];
Pssm-ID: 442494 [Multi-domain] Cd Length: 502 Bit Score: 72.45 E-value: 1.02e-12
Bacterial fucose permease, eukaryotic Major facilitator superfamily domain-containing protein ...
565-917
8.41e-06
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: 50.01 E-value: 8.41e-06
Phosphotransferase system, EIIC; The bacterial phosphoenolpyruvate: sugar phosphotransferase ...
557-787
3.39e-03
Phosphotransferase system, EIIC; The bacterial phosphoenolpyruvate: sugar phosphotransferase system (PTS) is a multi-protein system involved in the regulation of a variety of metabolic and transcriptional processes. The sugar-specific permease of the PTS consists of three domains (IIA, IIB and IIC). The IIC domain catalyzes the transfer of a phosphoryl group from IIB to the sugar substrate.
Pssm-ID: 367061 Cd Length: 315 Bit Score: 41.56 E-value: 3.39e-03
Wzx, a subfamily of the multidrug and toxic compound extrusion (MATE)-like proteins; ...
644-901
4.02e-03
Wzx, a subfamily of the multidrug and toxic compound extrusion (MATE)-like proteins; Escherichia coli Wzx and related proteins from other gram-negative bacteria are thought to act as flippases, assisting in the membrane translocation of lipopolysaccharides including those containing O-antigens. Proteins from the MATE family are involved in exporting metabolites across the cell membrane and are often responsible for multidrug resistance (MDR).
Pssm-ID: 240533 [Multi-domain] Cd Length: 402 Bit Score: 41.37 E-value: 4.02e-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.
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