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W316 TCR in complex with HLA-DQ2-OMEGA1

Analyse W316 TCR in complex with HLA-DQ2-OMEGA1 in the GL1X research workbench: secondary structure, accessibility, pockets, interfaces, conservation, variants, modifications, peptides, crosslinks and neighbours on the 3D structure.

PDB
7SG0
Type
protein
Length
805 residues
Chains
5
Method
x-ray diffraction
Collection
MolNFT v1 / PDB
Contract
0xDE3723766Bc32dcACD03C17BaA400A7B36837Eba
Owner
0x3396CDB397284571d12822B4ae1189a8E22AAAAA
Molecule
HLA class II histocompatibility antigen, dq alpha 1 chain; MHC class II HLA-dq-beta-1…
UniProt
P01909, O19712
Ligands
NAG
Pockets
10 · best druggability 0.71

Structure

x-ray diffraction · 5 distinct chains · 10% helix, 44% strand (DSSP).

ChainMoleculeTypeResiduesSecondary structureUniProt
AHLA class II histocompatibility antigen, dq alpha 1 chainprotein18014% helix, 44% strandP01909
BMHC class II HLA-dq-beta-1protein17518% helix, 43% strandO19712
CDQ2-glia-OMEGA1 peptideprotein110% helix, 0% strand—
DT-cell receptor, W316, alpha chainprotein2011% helix, 42% strand—
ET-cell receptor, W316, beta chainprotein2388% helix, 48% strand—

Ligands and binding sites

  • NAG · 2-acetamido-2-deoxy-beta-D-glucopyranose · sugar · 2 copies · chains A, B
  • EDO · 1,2-ethanediol · additive · 3 copies · chains A, B, D, E

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

Pockets

10 pockets found on a 1 Å grid, 3 with a druggability of 0.5 or more.

PocketVolume (ų)DruggabilityBuriednessLining residuesInside
18420.710.7776empty
24090.710.8253empty
31060.660.9024empty
41980.480.7541empty
51660.460.7528empty

Interfaces

10 interfaces between chains.

  • A–B · 2609 Ų buried · 47 hydrogen bonds · protein-protein
  • D–E · 2011 Ų buried · 17 hydrogen bonds · protein-protein
  • B–C · 667 Ų buried · 8 hydrogen bonds · protein-protein
  • A–C · 549 Ų buried · 5 hydrogen bonds · protein-protein
  • A–E · 316 Ų buried · 1 hydrogen bond · protein-protein

Modifications

Observed in the structure: 8 disulfide, 2 glycan (disulfide, N-glycosylation).

Compared structures

  • 7SG0 · W316 TCR in complex with HLA-DQ2-omega1 · the same entry in another collection · chain A against A, TM-score 1.00
  • P01909 · AlphaFold monomer V2.0 prediction for HLA class II histocompatibility antigen, dq alpha 1… · a predicted model of the same protein · chain A against A, TM-score 0.95

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