SMTL ID : 8dir.1

The complex structure between human IgG1 Fc and its high affinity receptor FcgRI H174R variant

Coordinates

PDB Format Compare

Method

X-RAY DIFFRACTION 2.30 Å

Oligo State

hetero-2-1-mer

Ligands

2 x NAG- NAG- BMA- MAN- NAG- GAL- MAN- NAG- FUC: beta-D-galactopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose-(1-2)-alpha-D-mannopyranose-(1-6)-[2-acetamido-2-deoxy-beta-D-glucopyranose-(1-2)-alpha-D-mannopyranose-(1-3)]beta-D-mannopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-[alpha-L-fucopyranose-(1-6)]2-acetamido-2-deoxy-beta-D-glucopyranose

NAG-NAG-BMA-MAN-NAG-GAL-MAN-NAG-FUC.1: 15 residues within 4Å: Chain A: F.13, F.15, P.16, P.17, K.18, E.30, T.32, V.34, V.36, D.37, Q.67, N.69, T.71, R.73 Chain C: R.156 3 PLIP interactions: 3 interactions with chain A Hydrogen bonds: A:P.16, A:K.18, A:E.30 NAG-NAG-BMA-MAN-NAG-GAL-MAN-NAG-FUC.2: 17 residues within 4Å: Chain B: F.13, F.15, P.16, P.17, K.18, E.30, T.32, V.34, V.36, D.37, Q.67, Y.68, N.69, T.71, R.73, K.106 Chain C: L.118 9 PLIP interactions: 9 interactions with chain B Hydrophobic interactions: B:Y.68 Water bridges: B:Y.68, B:D.21, B:E.30 Hydrogen bonds: B:F.15, B:K.18, B:K.18, B:E.30, B:E.30, B:T.32, B:T.32

3 x NA: SODIUM ION(Non-functional Binders)

NA.3: 4 residues within 4Å: Chain B: S.39, D.42 Chain C: H.130, W.131 3 PLIP interactions: 3 interactions with chain B Hydrogen bonds: B:S.39, B:D.42, B:D.42 NA.4: 4 residues within 4Å: Chain B: Y.68, N.69 Chain C: K.124, A.125 2 PLIP interactions: 1 interactions with chain C, 1 interactions with chain B Hydrogen bonds: C:A.125, B:Y.68 NA.5: 3 residues within 4Å: Chain C: R.105, C.106, N.132 3 PLIP interactions: 3 interactions with chain C Hydrogen bonds: C:R.105, C:C.106 Water bridges: C:N.132

Links

RCSB   PDBe   PDBe-KB   PDBj   PDBsum   CATH   PLIP

Citation

Lu, J. et al., Fc gamma RI FG-loop functions as a pH sensitive switch for IgG binding and release. Front Immunol (2023)

Release Date

2023-05-10

Peptides

Ig gamma-1 Fc chain: AB
High affinity immunoglobulin gamma Fc receptor I: C

SMTL:PDB

SMTL Chain Id:
PDB Chain Id:

A
B

B
A

C
C

Ig gamma-1 Fc chain

High affinity immunoglobulin gamma Fc receptor I

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