SMTL ID : 6x4g.1

Crystal structure of ICOS in complex with ICOS-L and an anti ICOS-L VNAR domain

Coordinates

PDB Format

Method

X-RAY DIFFRACTION 3.50 Å

Oligo State

hetero-1-1-1-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: 11 residues within 4Å: Chain A: K.34, Q.36, N.92, S.94, F.101, L.105 Chain B: L.100, F.106, Q.107, E.108, V.109 5 PLIP interactions: 1 interactions with chain A, 4 interactions with chain B Hydrophobic interactions: A:F.101, B:L.100 Hydrogen bonds: B:F.106, B:E.108, B:E.108 NAG-NAG-BMA-MAN-MAN.2: 6 residues within 4Å: Chain B: N.157, T.159, D.160, T.192, V.195, I.197 No protein-ligand interaction detected (PLIP)

6 x NAG: 2-acetamido-2-deoxy-beta-D-glucopyranose(Post Translational Modification)

NAG.3: 2 residues within 4Å: Chain A: D.28, N.71 No protein-ligand interaction detected (PLIP) NAG.5: 1 residues within 4Å: Chain B: N.170 1 PLIP interactions: 1 interactions with chain B Hydrogen bonds: B:N.170 NAG.6: 8 residues within 4Å: Chain A: D.97 Chain B: Y.49, N.54, S.55, S.56, L.57, E.58, N.59 7 PLIP interactions: 7 interactions with chain B Hydrophobic interactions: B:Y.49, B:L.57 Hydrogen bonds: B:Y.49, B:Y.49, B:Y.49, B:N.54, B:S.56 NAG.7: 4 residues within 4Å: Chain B: Y.154, L.163, Q.207, N.209 No protein-ligand interaction detected (PLIP) NAG.8: 1 residues within 4Å: Chain B: N.86 No protein-ligand interaction detected (PLIP) NAG.9: 4 residues within 4Å: Chain B: N.121, Q.208, N.209, L.210 1 PLIP interactions: 1 interactions with chain B Hydrogen bonds: B:N.209

1 x GOL: GLYCEROL(Non-functional Binders)

GOL.4: 1 residues within 4Å: Chain A: K.25 No protein-ligand interaction detected (PLIP)

Links

RCSB   PDBe   PDBe-KB   PDBj   PDBsum   CATH   PLIP

Citation

Rujas, E. et al., Structural characterization of the ICOS/ICOS-L immune complex reveals high molecular mimicry by therapeutic antibodies. Nat Commun (2020)

Release Date

2020-10-14

Peptides

Inducible T-cell costimulator: A
ICOS ligand: B
anti ICOS-L VHH domain VNAR: C

SMTL:PDB

SMTL Chain Id:
PDB Chain Id:

A
A

B
C

C
N

Inducible T-cell costimulator

ICOS ligand

anti ICOS-L VHH domain VNAR

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