SMTL ID : 7bg4.1

Multidrug resistance transporter BmrA mutant E504A bound with ATP, Mg, and Rhodamine 6G solved by Cryo-EM

Coordinates

PDB Format Compare

Method

ELECTRON MICROSCOPY

Oligo State

homo-dimer

Ligands

2 x ATP: ADENOSINE-5'-TRIPHOSPHATE(Covalent)

ATP.1: 16 residues within 4Å: Chain A: Y.360, P.385, S.386, G.387, G.388, G.389, K.390, T.391, T.392, Q.432 Chain B: M.488, S.490, G.491, G.492, Q.493 Ligands: MG.3 12 PLIP interactions: 4 interactions with chain B, 8 interactions with chain A Hydrogen bonds: B:M.488, B:S.490, B:G.492, B:Q.493, A:G.387, A:G.388, A:G.388, A:K.390, A:T.391, A:T.392 Salt bridges: A:K.390, A:K.390 ATP.2: 20 residues within 4Å: Chain A: L.474, I.487, M.488, L.489, S.490, G.491, G.492 Chain B: D.126, Y.360, I.366, P.385, S.386, G.387, G.388, G.389, K.390, T.391, T.392, Q.432 Ligands: MG.5 12 PLIP interactions: 9 interactions with chain B, 3 interactions with chain A Hydrogen bonds: B:Y.360, B:G.387, B:G.387, B:K.390, B:T.391, B:T.392, B:Q.432, A:S.490, A:G.491, A:G.492 Salt bridges: B:K.390, B:H.545

2 x MG: MAGNESIUM ION(Non-covalent)

MG.3: 4 residues within 4Å: Chain A: T.391, Q.432, D.513 Ligands: ATP.1 1 PLIP interactions: 1 interactions with chain A Metal complexes: A:T.391 MG.5: 3 residues within 4Å: Chain B: T.391, Q.432 Ligands: ATP.2 No protein-ligand interaction detected (PLIP)

2 x RHQ: RHODAMINE 6G(Non-covalent)

RHQ.4: 4 residues within 4Å: Chain A: L.268, I.304 Chain B: S.53, I.56 4 PLIP interactions: 1 interactions with chain B, 3 interactions with chain A Hydrophobic interactions: B:I.56, A:L.268, A:I.304, A:I.304 RHQ.6: 7 residues within 4Å: Chain A: S.53, F.85 Chain B: I.264, S.265, L.268, I.304, T.312 3 PLIP interactions: 1 interactions with chain A, 2 interactions with chain B Hydrophobic interactions: A:F.85, B:L.268, B:I.304

Links

RCSB   PDBe   PDBe-KB   PDBj   PDBsum   CATH   PLIP

Citation

Chaptal, V. et al., Substrate-bound and substrate-free outward-facing structures of a multidrug ABC exporter. Sci Adv (2022)

Release Date

2022-01-12

Peptides

Lipid A export ATP-binding/permease protein MsbA: AB

SMTL:PDB

SMTL Chain Id:
PDB Chain Id:

A
A

B
B

Membrane

We predict this structure to be a membrane protein.
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Lipid A export ATP-binding/permease protein MsbA

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