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TCR/HLA-DR2B/MBP-peptide complex

Analyse TCR/HLA-DR2B/MBP-peptide complex in the GL1X research workbench: secondary structure, accessibility, pockets, interfaces, conservation, variants, modifications, peptides, crosslinks and neighbours on the 3D structure.

PDB
1YMM
Type
protein
Length
716 residues
Chains
5
Method
x-ray diffraction
Collection
MolNFT v1 / PDB
Contract
0xDE3723766Bc32dcACD03C17BaA400A7B36837Eba
Owner
0x3396CDB397284571d12822B4ae1189a8E22AAAAA
Molecule
HLA class II histocompatibility antigen, dr alpha chain; HLA class II histocompatibility…
UniProt
P01903, Q29790, P02686, P01850
Ligands
NAG
Pockets
6 · best druggability 0.52

Structure

x-ray diffraction · 5 distinct chains · 10% helix, 35% strand (DSSP).

ChainMoleculeTypeResiduesSecondary structureUniProt
AHLA class II histocompatibility antigen, dr alpha chainprotein18214% helix, 44% strandP01903
BHLA class II histocompatibility antigen, dr beta chainprotein17822% helix, 41% strandQ29790
CMbp peptideprotein140% helix, 7% strandP02686
DT cell receptor alpha chainprotein963% helix, 26% strand—
ET-cell receptor beta chainprotein2463% helix, 29% strandP01850

Ligands and binding sites

  • NAG · 2-acetamido-2-deoxy-beta-D-glucopyranose · sugar · chains A

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

Pockets

6 pockets found on a 1 Å grid, 2 with a druggability of 0.5 or more.

PocketVolume (ų)DruggabilityBuriednessLining residuesInside
11750.520.7830empty
21550.510.7925empty
32950.500.7343empty
41880.490.7630empty
5830.340.7518empty

Interfaces

10 interfaces between chains.

  • A–B · 2484 Ų buried · 38 hydrogen bonds · protein-protein
  • D–E · 785 Ų buried · 8 hydrogen bonds · protein-protein
  • B–C · 681 Ų buried · 9 hydrogen bonds · protein-protein
  • A–C · 639 Ų buried · 16 hydrogen bonds · protein-protein
  • B–D · 375 Ų buried · 6 hydrogen bonds · protein-protein

Modifications

Observed in the structure: 6 disulfide, 1 glycan (disulfide, N-glycosylation).

Compared structures

  • 1YMM · TCR/HLA-DR2b/MBP-peptide complex · the same entry in another collection · chain E against E, TM-score 1.00
  • P01903 · AlphaFold monomer V2.0 prediction for HLA class II histocompatibility antigen, dr alpha… · a predicted model of the same protein · chain A against A, TM-score 0.95
  • P01850 · AlphaFold monomer V2.0 prediction for T cell receptor beta constant 1 (P01850) · a predicted model of the same protein · chain E against A, TM-score 0.50
  • P02686 · AlphaFold monomer V2.0 prediction for myelin basic protein (P02686) · a predicted model of the same protein · chain C against A, TM-score 0.30

Analyse

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