SMTL ID : 7niv.1

Nanodisc reconstituted human ABCB4 in complex with 4B1-Fab and QA2-Fab (phosphatidylcholine-bound, occluded conformation)

Coordinates

PDB Format Compare

Method

ELECTRON MICROSCOPY

Oligo State

hetero-1-1-1-1-1-mer

Ligands

1 x DLP: 1,2-DILINOLEOYL-SN-GLYCERO-3-PHOSPHOCHOLINE(Non-covalent)

DLP.1: 26 residues within 4Å: Chain C: F.78, A.231, W.234, F.305, I.308, Y.312, A.315, F.316, G.319, M.334, F.337, F.338, I.342, F.345, Q.725, F.732, I.735, I.736, F.739, F.758, Y.952, I.974, F.977, F.982, A.986, H.989 28 PLIP interactions: 28 interactions with chain C Hydrophobic interactions: C:F.78, C:F.78, C:Y.312, C:F.316, C:F.337, C:F.337, C:F.338, C:F.338, C:I.342, C:F.732, C:F.732, C:F.732, C:F.732, C:F.732, C:I.735, C:I.736, C:F.739, C:F.758, C:I.974, C:I.974, C:F.977, C:F.982, C:F.982 Hydrogen bonds: C:Q.725 Salt bridges: C:H.989 pi-Cation interactions: C:W.234, C:W.234, C:F.345

7 x CLR: CHOLESTEROL(Non-covalent)

CLR.2: 9 residues within 4Å: Chain C: I.65, S.69, L.73, I.76, F.203, A.204, I.207, V.208, I.211 7 PLIP interactions: 7 interactions with chain C Hydrophobic interactions: C:I.65, C:L.73, C:I.76, C:F.203, C:I.207, C:I.211, C:I.211 CLR.3: 9 residues within 4Å: Chain C: I.226, L.307, A.310, S.311, L.314, W.317, N.752, L.756, L.759 5 PLIP interactions: 5 interactions with chain C Hydrophobic interactions: C:I.226, C:L.307, C:W.317, C:L.756 Hydrogen bonds: C:N.752 CLR.4: 6 residues within 4Å: Chain C: A.720, L.724, V.730, E.734, I.757, I.764 5 PLIP interactions: 5 interactions with chain C Hydrophobic interactions: C:L.724, C:V.730, C:E.734, C:I.757, C:I.764 CLR.5: 3 residues within 4Å: Chain C: R.957, F.958, Y.961 4 PLIP interactions: 4 interactions with chain C Hydrophobic interactions: C:R.957, C:F.958, C:Y.961, C:Y.961 CLR.6: 6 residues within 4Å: Chain C: Y.118, S.121, I.943, F.947, F.950, G.954 5 PLIP interactions: 5 interactions with chain C Hydrophobic interactions: C:Y.118, C:I.943, C:F.947, C:F.950, C:F.950 CLR.7: 8 residues within 4Å: Chain C: L.834, I.835, N.838, I.839, I.846, I.847, L.987 Ligands: CLR.8 4 PLIP interactions: 4 interactions with chain C Hydrophobic interactions: C:I.835, C:I.846, C:I.847, C:L.987 CLR.8: 7 residues within 4Å: Chain C: I.846, L.861, P.865, I.872, L.987, S.991 Ligands: CLR.7 5 PLIP interactions: 5 interactions with chain C Hydrophobic interactions: C:I.846, C:L.861, C:P.865, C:I.872, C:L.987

Links

RCSB   PDBe   PDBe-KB   PDBj   PDBsum   CATH   PLIP

Citation

Nosol, K. et al., Structures of ABCB4 provide insight into phosphatidylcholine translocation. Proc.Natl.Acad.Sci.USA (2021)

Release Date

2021-08-25

Peptides

QA2 Fab-fragment light chain: A
QA2 Fab-fragment light chain: B
Isoform 2 of Phosphatidylcholine translocator ABCB4: C
4B1 Fab-fragment light chain: D
4B1 Fab-fragment light chain: E

SMTL:PDB

SMTL Chain Id:
PDB Chain Id:

A
D

B
E

C
A

D
B

E
C

Membrane

We predict this structure to be a membrane protein.
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QA2 Fab-fragment light chain

QA2 Fab-fragment light chain

Isoform 2 of Phosphatidylcholine translocator ABCB4

4B1 Fab-fragment light chain

4B1 Fab-fragment light chain

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