SMTL ID : 7egl.1

Bicarbonate transporter complex SbtA-SbtB bound to HCO3-

Coordinates

PDB Format Compare

Method

X-RAY DIFFRACTION 3.20 Å

Oligo State

hetero-3-3-mer

Ligands

3 x BCT: BICARBONATE ION(Non-functional Binders)

BCT.1: 6 residues within 4Å: Chain A: V.113, G.115, S.324, D.325, I.326, S.327 4 PLIP interactions: 4 interactions with chain A Hydrogen bonds: A:S.324, A:I.326, A:S.327 Water bridges: A:G.115 BCT.3: 6 residues within 4Å: Chain C: V.113, G.115, S.324, D.325, I.326, S.327 4 PLIP interactions: 4 interactions with chain C Hydrogen bonds: C:S.324, C:I.326, C:S.327 Water bridges: C:G.115 BCT.5: 6 residues within 4Å: Chain E: V.113, G.115, S.324, D.325, I.326, S.327 4 PLIP interactions: 4 interactions with chain E Hydrogen bonds: E:S.324, E:I.326, E:S.327 Water bridges: E:G.115

3 x NA: SODIUM ION(Non-functional Binders)

NA.2: 6 residues within 4Å: Chain A: F.110, G.111, A.112, I.319, A.320, S.322 1 PLIP interactions: 1 interactions with chain A Hydrogen bonds: A:F.110 NA.4: 6 residues within 4Å: Chain C: F.110, G.111, A.112, I.319, A.320, S.322 1 PLIP interactions: 1 interactions with chain C Hydrogen bonds: C:I.319 NA.6: 6 residues within 4Å: Chain E: F.110, G.111, A.112, I.319, A.320, S.322 1 PLIP interactions: 1 interactions with chain E Hydrogen bonds: E:S.322

Links

RCSB   PDBe   PDBe-KB   PDBj   PDBsum   CATH   PLIP

Citation

Fang, S. et al., Molecular mechanism underlying transport and allosteric inhibition of bicarbonate transporter SbtA. Proc.Natl.Acad.Sci.USA (2021)

Release Date

2021-05-26

Peptides

Sodium-dependent bicarbonate transporter SbtA: ACE
Membrane-associated protein SbtB: BDF

SMTL:PDB

SMTL Chain Id:
PDB Chain Id:

A
A

C
A

E
A

B
B

D
B

F
B

Membrane

We predict this structure to be a membrane protein.
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Sodium-dependent bicarbonate transporter SbtA

Membrane-associated protein SbtB

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