SMTL ID : 4gko.1 (2 other biounits)

Crystal structure of the calcium2+-bound human IgE-Fc(epsilon)3-4 bound to its B cell receptor derCD23

Coordinates

PDB Format

Method

X-RAY DIFFRACTION 3.30 Å

Oligo State

hetero-2-2-mer

Ligands

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

NAG-NAG-BMA-MAN-MAN.1: 8 residues within 4Å: Chain A: L.35, V.37, Q.68, N.70, T.72, T.74, Q.170 Ligands: NAG-NAG-BMA-MAN-MAN.2 2 PLIP interactions: 2 interactions with chain A Hydrogen bonds: A:Q.170, A:Q.170, A:Q.170, A:Y.15, A:T.74 NAG-NAG-BMA-MAN-MAN.2: 9 residues within 4Å: Chain B: Y.15, L.35, V.37, Q.68, N.70, T.72, T.74, Q.170 Ligands: NAG-NAG-BMA-MAN-MAN.1 2 PLIP interactions: 2 interactions with chain B Hydrogen bonds: B:Q.170, B:Q.170, B:Y.15, B:Y.15

2 x CA: CALCIUM ION(Non-covalent)

CA.3: 4 residues within 4Å: Chain C: E.94, T.96, E.102, D.115 5 PLIP interactions: 5 interactions with chain C Metal complexes: C:E.94, C:T.96, C:E.102, C:D.115, C:D.115 CA.4: 4 residues within 4Å: Chain D: E.94, T.96, E.102, D.115 2 PLIP interactions: 2 interactions with chain D Metal complexes: D:E.94, D:T.96

Links

RCSB   PDBe   PDBe-KB   PDBj   PDBsum   CATH   PLIP

Citation

Yuan, D. et al., Ca2+-dependent Structural Changes in the B-cell Receptor CD23 Increase Its Affinity for Human Immunoglobulin E. J.Biol.Chem. (2013)

Release Date

2013-06-26

Peptides

Ig epsilon chain C region: AB
Low affinity immunoglobulin epsilon Fc receptor: CD

SMTL:PDB

SMTL Chain Id:
PDB Chain Id:

A
A

B
B

C
G

D
H

Ig epsilon chain C region

Low affinity immunoglobulin epsilon Fc receptor

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