SMTL ID : 6vzd.2 (1 other biounit)

N-terminal domain of mouse surfactant protein B (K46E/R51E mutant) with bound lipid

Coordinates

PDB Format Compare

Method

X-RAY DIFFRACTION 1.88 Å

Oligo State

homo-dimer

Ligands

3 x RXY: (7Z,19R,22R)-25-amino-22-hydroxy-16,22-dioxo-17,21,23-trioxa-22lambda~5~-phosphapentacos-7-en-19-yl (9Z)-octadec-9-enoate(Non-covalent)

RXY.1: 29 residues within 4Å: Chain A: L.19, M.22, F.28, I.32, F.35, L.36, E.39, P.44, L.45, V.49, C.52, V.55, L.56, Y.59, L.60, V.63 Chain B: C.12, I.15, V.16, L.19, Y.66, F.67, I.71, I.76, H.79, V.80, L.82 Ligands: RXY.2, RXY.3 12 PLIP interactions: 7 interactions with chain A, 5 interactions with chain B Hydrophobic interactions: A:L.19, A:F.28, A:I.32, A:F.35, A:V.55, A:L.56, A:Y.59, B:I.15, B:I.15 Hydrogen bonds: B:Y.66 Salt bridges: B:H.79, B:H.79 RXY.2: 22 residues within 4Å: Chain A: L.19, P.44, L.45, L.48, V.49, V.55, Y.59, V.63, F.67 Chain B: L.19, P.44, L.45, L.48, V.49, V.55, Y.59, L.62, V.63, Y.66, F.67 Ligands: RXY.1, RXY.3 10 PLIP interactions: 8 interactions with chain B, 2 interactions with chain A Hydrophobic interactions: B:L.45, B:Y.59, B:V.63, B:V.63, B:Y.66, B:Y.66, B:F.67, A:V.49, A:Y.59 Hydrogen bonds: B:Y.59 RXY.3: 28 residues within 4Å: Chain A: C.12, I.15, V.16, L.19, L.62, Y.66, F.67, I.76, C.77, H.79, V.80, L.82 Chain B: L.19, M.22, F.28, I.32, F.35, L.36, E.39, P.44, L.45, V.55, L.56, Y.59, L.60, V.63 Ligands: RXY.1, RXY.2 10 PLIP interactions: 7 interactions with chain A, 3 interactions with chain B Hydrophobic interactions: A:I.15, A:I.15, A:V.16, A:V.80, B:L.19, B:F.28, B:L.36 Hydrogen bonds: A:Y.66 Salt bridges: A:H.79, A:H.79

Links

RCSB   PDBe   PDBe-KB   PDBj   PDBsum   CATH   PLIP

Citation

Sever, N. et al., Mechanism of Lamellar Body Formation by Lung Surfactant Protein B. Mol.Cell (2021)

Release Date

2020-11-25

Peptides

Pulmonary surfactant-associated protein B: AB

SMTL:PDB

SMTL Chain Id:
PDB Chain Id:

A
B

B
C

Pulmonary surfactant-associated protein B

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