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Cetuximab Fab in complex with L5Y meditope variant

Analyse Cetuximab Fab in complex with L5Y meditope variant in the GL1X research workbench: secondary structure, accessibility, pockets, interfaces, conservation, variants, modifications, peptides, crosslinks and neighbours on the 3D structure.

PDB
5F88
Type
protein
Length
880 residues
Chains
6
Method
x-ray diffraction
Collection
MolNFT v1 / PDB
Contract
0xDE3723766Bc32dcACD03C17BaA400A7B36837Eba
Owner
0x3396CDB397284571d12822B4ae1189a8E22AAAAA
Molecule
Cetuximab Fab light chain; Cetuximab Fab heavy chain; L5Y meditope
Ligands
NAG, PO4
Pockets
10 · best druggability 0.73

Structure

x-ray diffraction · 4 distinct chains · 7% helix, 51% strand (DSSP).

ChainMoleculeTypeResiduesSecondary structureUniProt
A, CCetuximab Fab light chainprotein2137% helix, 50% strand—
BCetuximab Fab heavy chainprotein2167% helix, 52% strand—
DCetuximab Fab heavy chainprotein2147% helix, 52% strand—
E, FL5Y meditopeprotein120% helix, 50% strand—

Ligands and binding sites

  • NAG · 2-acetamido-2-deoxy-beta-D-glucopyranose · sugar · 2 copies · chains B, D
  • PO4 · Phosphate ion · ion · 4 copies · chains A, B, C, D

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

Pockets

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

PocketVolume (ų)DruggabilityBuriednessLining residuesInside
19650.730.77102empty
24050.630.7848PO4
33810.610.7745PO4
42840.570.7754empty
51730.460.7530empty

Interfaces

7 interfaces between chains.

  • A–B · 1731 Ų buried · 18 hydrogen bonds · protein-protein
  • C–D · 1694 Ų buried · 19 hydrogen bonds · protein-protein
  • A–C · 753 Ų buried · 8 hydrogen bonds · protein-protein
  • A–E · 523 Ų buried · 11 hydrogen bonds · protein-protein
  • C–F · 523 Ų buried · 10 hydrogen bonds · protein-protein

Modifications

Observed in the structure: 10 disulfide, 2 glycan (disulfide, N-glycosylation).

Compared structures

  • 5F88 · Cetuximab Fab in complex with L5Y meditope variant · the same entry in another collection · chain A against A, TM-score 1.00

Analyse

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