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MolNFT v1 · #178883 · protein

Crystal structure of icos in complex with antibody STIM003 and anti- kappa vhh domain

7JOO · Anti-kappa vhh: “Crystal structure of icos in complex with antibody STIM003 and anti- kappa vhh domain”. X-ray diffraction, 1 ligand (NAG), 7 pockets (best druggability 0.69). MolNFT v1 #178883 on GenesisL1: 3D structure, binding…

PDB
7JOO
Type
protein
Length
660 residues
Chains
4
Method
x-ray diffraction
Collection
MolNFT v1 / PDB
Contract
0xDE3723766Bc32dcACD03C17BaA400A7B36837Eba
Owner
0x3396CDB397284571d12822B4ae1189a8E22AAAAA
Molecule
Anti-kappa vhh; STIM003 Fab heavy chain; STIM003 Fab light chain; Inducible T-cell…
UniProt
Q9Y6W8
Ligands
NAG
Pockets
7 · best druggability 0.69

Structure

x-ray diffraction · 4 distinct chains · 6% helix, 50% strand (DSSP).

ChainMoleculeTypeResiduesSecondary structureUniProt
KAnti-kappa vhhprotein1208% helix, 49% strand—
HSTIM003 Fab heavy chainprotein2186% helix, 49% strand—
LSTIM003 Fab light chainprotein2137% helix, 51% strand—
CInducible T-cell costimulatorprotein1093% helix, 54% strandQ9Y6W8

Ligands and binding sites

  • NAG · 2-acetamido-2-deoxy-beta-D-glucopyranose · sugar · chains C
  • GOL · Glycerol · additive · chains H

Binding sites are the residues within 4.5 Å of a ligand's heavy atoms.

Pockets

7 pockets found on a 1 Å grid, 4 with a druggability of 0.5 or more.

PocketVolume (ų)DruggabilityBuriednessLining residuesInside
1710.690.9528empty
21320.570.8426empty
31130.570.8532empty
43990.560.7450empty
51200.380.7427empty

Interfaces

4 interfaces between chains.

  • H–L · 1838 Ų buried · 19 hydrogen bonds · protein-protein
  • H–C · 645 Ų buried · 7 hydrogen bonds · protein-protein
  • K–L · 612 Ų buried · 7 hydrogen bonds · protein-protein
  • L–C · 222 Ų buried · 3 hydrogen bonds · protein-protein

Modifications

Observed in the structure: 7 disulfide, 1 glycan (disulfide, N-glycosylation).

Compared structures

  • 7JOO · Crystal structure of ICOS in complex with antibody STIM003 and anti-kappa VHH domain · the same entry in another collection · chain K against K, TM-score 1.00
  • Q9Y6W8 · AlphaFold monomer V2.0 prediction for inducible T-cell costimulator (Q9Y6W8) · a predicted model of the same protein · chain C against A, TM-score 0.84

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