SMTL ID : 8bmq.1

Cryo-EM structure of the folate-specific ECF transporter complex in MSP2N2 lipid nanodiscs bound to AMP-PNP

Coordinates

PDB Format

Method

ELECTRON MICROSCOPY

Oligo State

hetero-1-1-1-1-mer

Ligands

2 x ANP: PHOSPHOAMINOPHOSPHONIC ACID-ADENYLATE ESTER(Non-covalent)

ANP.1: 13 residues within 4Å: Chain A: F.31, S.36, R.38, A.40, N.60, G.61, S.62, G.63, K.64, S.65, T.66, E.187, H.220 17 PLIP interactions: 16 interactions with chain A, 1 interactions with chain C Hydrogen bonds: A:S.36, A:R.38, A:R.38, A:G.61, A:G.61, A:S.62, A:G.63, A:K.64, A:K.64, A:S.65, A:T.66, A:T.66, A:E.187, A:H.220 pi-Stacking: A:F.31, A:F.31 pi-Cation interactions: C:R.174 ANP.2: 11 residues within 4Å: Chain B: Y.10, Y.12, G.22, T.42, G.43, S.44, G.45, K.46, S.47, T.48 Ligands: MG.3 9 PLIP interactions: 9 interactions with chain B Hydrogen bonds: B:G.43, B:S.44, B:G.45, B:K.46, B:K.46, B:K.46, B:S.47, B:T.48, B:T.48

1 x MG: MAGNESIUM ION(Non-covalent)

MG.3: 4 residues within 4Å: Chain B: S.47, Q.92, D.170 Ligands: ANP.2 2 PLIP interactions: 2 interactions with chain B Metal complexes: B:D.170, B:D.170

Links

RCSB   PDBe   PDBe-KB   PDBj   PDBsum   CATH   PLIP

Citation

Thangaratnarajah, C. et al., Expulsion mechanism of the substrate-translocating subunit in ECF transporters. Nat Commun (2023)

Release Date

2023-08-02

Peptides

Energy-coupling factor transporter ATP-binding protein EcfA1: A
Energy-coupling factor transporter ATP-binding protein EcfA2: B
Folate family ECF transporter S component: C
Energy-coupling factor transporter transmembrane protein EcfT: D

SMTL:PDB

SMTL Chain Id:
PDB Chain Id:

A
A

B
B

C
C

D
D

Membrane

We predict this structure to be a membrane protein.
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Energy-coupling factor transporter ATP-binding protein EcfA1

Energy-coupling factor transporter ATP-binding protein EcfA2

Folate family ECF transporter S component

Energy-coupling factor transporter transmembrane protein EcfT

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