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Crystal structure of an EGFR/HER3 kinase domain heterodimer containing the cancer-associated HER3-E909G mutation

Analyse Crystal structure of an EGFR/HER3 kinase domain heterodimer containing the… in the GL1X research workbench: secondary structure, accessibility, pockets, interfaces, conservation, variants, modifications, peptides, crosslinks and neighbours on the 3D structure.

PDB
4RIY
Type
protein
Length
1,134 residues
Chains
4
Method
x-ray diffraction
Collection
MolNFT v1 / PDB
Contract
0xDE3723766Bc32dcACD03C17BaA400A7B36837Eba
Owner
0x3396CDB397284571d12822B4ae1189a8E22AAAAA
Molecule
Receptor tyrosine-protein kinase erbb-3; Epidermal growth factor receptor
EC
2.7.10.1
UniProt
P21860, P00533
Ligands
ANP, ADP, MG
Pockets
13 · best druggability 0.72

Structure

x-ray diffraction · 4 distinct chains · 36% helix, 19% strand (DSSP).

ChainMoleculeTypeResiduesSecondary structureUniProt
AReceptor tyrosine-protein kinase erbb-3 (EC 2.7.10.1)protein26938% helix, 19% strandP21860
BEpidermal growth factor receptor (EC 2.7.10.1)protein29334% helix, 20% strandP00533
CReceptor tyrosine-protein kinase erbb-3 (EC 2.7.10.1)protein27540% helix, 17% strandP21860
DEpidermal growth factor receptor (EC 2.7.10.1)protein29734% helix, 19% strandP00533

Ligands and binding sites

  • ANP · Phosphoaminophosphonic acid-adenylate ester · ligand · 2 copies · chains A, C
  • ADP · Adenosine-5'-diphosphate · ligand · 2 copies · chains B, D
  • MG · Magnesium ion · metal · 4 copies · chains A, B, C, D

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

Pockets

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

PocketVolume (ų)DruggabilityBuriednessLining residuesInside
16900.720.7858empty
23730.720.8346ANP, MG
33340.660.8139ADP, MG
43520.660.8041ADP, MG
53180.660.8133ANP, MG

Interfaces

3 interfaces between chains.

  • A–B · 1470 Ų buried · 15 hydrogen bonds · protein-protein
  • C–D · 1468 Ų buried · 14 hydrogen bonds · protein-protein
  • B–D · 431 Ų buried · 3 hydrogen bonds · protein-protein

Compared structures

  • 4RIY · Crystal structure of an EGFR/HER3 kinase domain heterodimer containing the… · the same entry in another collection · chain D against D, TM-score 1.00
  • P21860 · AlphaFold monomer V2.0 prediction for receptor tyrosine-protein kinase erbb-3 (P21860) · a predicted model of the same protein · chain A against A, TM-score 0.97
  • P00533 · AlphaFold monomer V2.0 prediction for epidermal growth factor receptor (P00533) · a predicted model of the same protein · chain D against A, TM-score 0.95

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