SMTL ID : 8h5e.1

Crystal structure of the MgtE TM domain in complex with Ca2+ ions at 2.5 angstrom resolution

Coordinates

PDB Format Compare

Method

X-RAY DIFFRACTION 2.50 Å

Oligo State

homo-dimer

Ligands

3 x OLC: (2R)-2,3-dihydroxypropyl (9Z)-octadec-9-enoate(Covalent)(Non-covalent)

OLC.1: 5 residues within 4Å: Chain A: L.82, W.85, R.86, F.143, L.144 5 PLIP interactions: 5 interactions with chain A Hydrophobic interactions: A:W.85, A:W.85, A:F.143, A:L.144 Salt bridges: A:R.86 OLC.5: 6 residues within 4Å: Chain A: L.106, K.110, W.113 Chain B: L.27, M.30, V.31 5 PLIP interactions: 2 interactions with chain B, 3 interactions with chain A Hydrophobic interactions: B:M.30, B:V.31, A:L.106, A:K.110, A:W.113 OLC.6: 8 residues within 4Å: Chain A: L.27, V.31, S.34 Chain B: L.106, G.109, K.110, W.113, D.114 5 PLIP interactions: 4 interactions with chain B, 1 interactions with chain A Hydrophobic interactions: B:K.110, B:W.113, A:V.31 Hydrogen bonds: B:D.114 Salt bridges: B:K.110

4 x CA: CALCIUM ION(Non-functional Binders)(Non-covalent)

CA.2: 0 residues within 4Å: (No contacts) No protein-ligand interaction detected (PLIP) CA.3: 4 residues within 4Å: Chain A: E.44 Chain B: E.44, T.47 Ligands: CA.4 5 PLIP interactions: 1 interactions with chain B, 2 interactions with chain A, 2 Ligand-Water interactions Metal complexes: B:E.44, A:E.44, A:E.44, H2O.3, H2O.4 CA.4: 4 residues within 4Å: Chain A: E.44, T.47 Chain B: E.44 Ligands: CA.3 4 PLIP interactions: 1 interactions with chain B, 3 interactions with chain A Metal complexes: B:E.44, A:E.44, A:E.44, A:T.47 CA.7: 1 residues within 4Å: Chain B: E.44 No protein-ligand interaction detected (PLIP)

Links

RCSB   PDBe   PDBe-KB   PDBj   PDBsum   CATH   PLIP

Citation

Teng, X. et al., Ion selectivity mechanism of the MgtE channel for Mg 2+ over Ca 2 . Iscience (2022)

Release Date

2022-12-07

Peptides

Magnesium transporter MgtE: AB

SMTL:PDB

SMTL Chain Id:
PDB Chain Id:

A
A

B
B

Membrane

We predict this structure to be a membrane protein.
Show / Hide

Magnesium transporter MgtE