SMTL ID : 4i0u.2 (1 other biounit)

Improved structure of Thermotoga maritima CorA at 2.7 A resolution

Coordinates

PDB Format

Method

X-RAY DIFFRACTION 2.70 Å

Oligo State

homo-pentamer

Ligands

13 x MG: MAGNESIUM ION(Non-covalent)

MG.1: 3 residues within 4Å: Chain A: D.175, D.179 Chain B: L.12 No protein-ligand interaction detected (PLIP) MG.2: 3 residues within 4Å: Chain A: E.88, D.89 Chain D: D.253 5 PLIP interactions: 1 interactions with chain D, 1 interactions with chain A, 3 Ligand-Water interactions Metal complexes: D:D.253, A:D.89, H2O.1, H2O.1, H2O.1 MG.5: 2 residues within 4Å: Chain B: D.277 Chain C: D.277 1 PLIP interactions: 1 interactions with chain B Metal complexes: B:D.277 MG.6: 2 residues within 4Å: Chain B: R.5, A.8 No protein-ligand interaction detected (PLIP) MG.7: 3 residues within 4Å: Chain A: D.253 Chain B: L.85, D.89 5 PLIP interactions: 1 interactions with chain A, 1 interactions with chain B, 3 Ligand-Water interactions Metal complexes: A:D.253, B:D.89, H2O.1, H2O.1, H2O.1 MG.8: 1 residues within 4Å: Chain B: D.175 No protein-ligand interaction detected (PLIP) MG.9: 3 residues within 4Å: Chain B: D.253 Chain C: E.88, D.89 5 PLIP interactions: 1 interactions with chain B, 1 interactions with chain C, 3 Ligand-Water interactions Metal complexes: B:D.253, C:D.89, H2O.2, H2O.3, H2O.3 MG.19: 3 residues within 4Å: Chain A: E.88 Chain D: D.175, D.179 No protein-ligand interaction detected (PLIP) MG.20: 2 residues within 4Å: Chain D: L.12 Chain E: D.179 No protein-ligand interaction detected (PLIP) MG.21: 3 residues within 4Å: Chain D: L.85, D.89 Chain E: D.253 5 PLIP interactions: 1 interactions with chain D, 4 Ligand-Water interactions Metal complexes: D:D.89, H2O.3, H2O.3, H2O.3, H2O.4 MG.23: 4 residues within 4Å: Chain C: G.312 Chain D: N.314 Chain E: G.312, N.314 No protein-ligand interaction detected (PLIP) MG.24: 2 residues within 4Å: Chain C: D.175 Chain E: P.14 No protein-ligand interaction detected (PLIP) MG.25: 4 residues within 4Å: Chain C: D.253 Chain E: L.85, E.88, D.89 5 PLIP interactions: 1 interactions with chain C, 4 Ligand-Water interactions Metal complexes: C:D.253, H2O.4, H2O.4, H2O.4, H2O.4

5 x CL: CHLORIDE ION(Non-functional Binders)

CL.3: 6 residues within 4Å: Chain A: R.153, G.159, I.160, I.161, Y.168 Chain B: P.14 Ligand excluded by PLIP CL.10: 4 residues within 4Å: Chain B: I.160, I.161, Y.168 Chain C: P.14 Ligand excluded by PLIP CL.11: 3 residues within 4Å: Chain B: K.9, E.88, N.92 Ligand excluded by PLIP CL.17: 5 residues within 4Å: Chain C: R.153, I.160, I.161, Y.168 Chain E: P.14 Ligand excluded by PLIP CL.26: 7 residues within 4Å: Chain D: P.13, P.14 Chain E: R.153, G.159, I.160, I.161, Y.168 Ligand excluded by PLIP

10 x PEG: DI(HYDROXYETHYL)ETHER(Non-functional Binders)

PEG.4: 0 residues within 4Å: (No contacts) No protein-ligand interaction detected (PLIP) PEG.12: 5 residues within 4Å: Chain B: F.306 Chain C: L.304, L.331, M.334, G.335 No protein-ligand interaction detected (PLIP) PEG.13: 2 residues within 4Å: Chain B: T.70, Q.74 2 PLIP interactions: 2 interactions with chain B Hydrogen bonds: B:T.70, B:Q.74 PEG.14: 1 residues within 4Å: Chain B: D.71 No protein-ligand interaction detected (PLIP) PEG.15: 1 residues within 4Å: Chain B: E.246 No protein-ligand interaction detected (PLIP) PEG.16: 3 residues within 4Å: Chain B: E.121, E.123, Q.213 2 PLIP interactions: 2 interactions with chain B Hydrogen bonds: B:E.123, B:Q.213 PEG.18: 1 residues within 4Å: Chain C: D.256 No protein-ligand interaction detected (PLIP) PEG.22: 1 residues within 4Å: Chain D: Q.74 1 PLIP interactions: 1 interactions with chain D Hydrogen bonds: D:Q.74 PEG.27: 4 residues within 4Å: Chain D: K.10 Chain E: V.146, D.180, V.183 1 PLIP interactions: 1 interactions with chain D Hydrogen bonds: D:K.10 PEG.28: 2 residues within 4Å: Chain E: D.270, S.273 2 PLIP interactions: 2 interactions with chain E Hydrogen bonds: E:R.269, E:D.270

Links

RCSB   PDBe   PDBe-KB   PDBj   PDBsum   CATH   PLIP

Citation

Nordin, N. et al., Exploring the structure and function of Thermotoga maritima CorA reveals the mechanism of gating and ion selectivity in Co2+/Mg2+ transport. Biochem.J. (2013)

Release Date

2013-03-06

Peptides

Magnesium transport protein CorA: ABCDE

SMTL:PDB

SMTL Chain Id:
PDB Chain Id:

A
F

B
G

C
H

D
I

E
J

Membrane

We predict this structure to be a membrane protein.
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Magnesium transport protein CorA

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