9BFY: Tri-complex of Compound-14, KRAS G12C, and CypA

Tri-complex of Compound-14, KRAS G12C, and CypA. Determined by X-ray diffraction at 1.26 Å resolution. Released 12 Jun 2024.

Method
X-ray diffraction
Resolution
1.26 Å
Organism
Homo sapiens
Chains
4
Atoms
6,787
Mol. weight
77.96 kDa
Ligands
GNP, MG, A1AOL
Released
12 Jun 2024

Explore 9BFY in 3D Show helices and sheets RCSB PDB PDBe

Secondary structure: helices and β-sheets

9BFY contains 19 α-helices and 38 β-strands across 4 chains. Residue ranges use author residue numbering, as in the PDB file, from PDBe. To see them in 3D, choose the Cartoon representation with Secondary structure coloring: helices, sheets and coils get different colors.

Chains A and B: 6 helices, 6 β-strands

ElementResiduesLengthSheet
β-strand2-1091
α-helix16-2510
β-strand37-46101
β-strand49-58101
α-helix65-7410
β-strand77-8371
α-helix87-915
α-helix93-10412
β-strand111-11661
α-helix127-13711
β-strand141-14331
α-helix152-16817
Chain C: 3 helices, 13 β-strands
ElementResiduesLengthSheet
β-strand5-1283
β-strand15-24103
α-helix30-4112
β-strand5213
β-strand55-5733
β-strand61-6443
β-strand7714
β-strand8014
β-strand8315
β-strand97-10043
β-strand10815
β-strand112-11543
α-helix120-1223
β-strand128-13253
α-helix136-1438
β-strand156-16383
Chain D: 4 helices, 13 β-strands
ElementResiduesLengthSheet
α-helix2-43
β-strand5-1286
β-strand15-24106
α-helix30-4112
β-strand5216
β-strand55-5736
β-strand61-6446
β-strand7717
β-strand8017
β-strand8318
β-strand97-10046
β-strand10818
β-strand112-11546
α-helix120-1223
β-strand128-13256
α-helix136-1438
β-strand156-16386

Molecules and chains

MoleculeChainsTypeLengthOrganismUniProt
GTPase KRasA, Bprotein170Homo sapiensP01116 (AlphaFold model)
Peptidyl-prolyl cis-trans isomerase AC, Dprotein166Homo sapiensP62937 (AlphaFold model)
Sequence of entity 1 (A, B), FASTA
>9BFY_1 GTPase KRas (chains A, B)
SMTEYKLVVVGACGVGKSALTIQLIQNHFVDEYDPTIEDSYRKQVVIDGETSLLDILDTA
GQEEYSAMRDQYMRTGEGFLLVFAINNTKSFEDIHHYREQIKRVKDSEDVPMVLVGNKSD
LPSRTVDTKQAQDLARSYGIPFIETSAKTRQGVDDAFYTLVREIRKHKEK
Sequence of entity 2 (C, D), FASTA
>9BFY_2 Peptidyl-prolyl cis-trans isomerase A (chains C, D)
SMVNPTVFFDIAVDGEPLGRVSFELFADKVPKTAENFRALSTGEKGFGYKGSSFHRIIPG
FMCQGGDFTRHNGTGGKSIYGEKFEDENFILKHTGPGILSMANAGPNTNGSQFFICTAKT
EWLDGKHVVFGKVKEGMNIVEAMERFGSRNGKTSKKITIADCGQLE

Ligands and cofactors

IDNameFormulaCopies
GNPPhosphoaminophosphonic acid-guanylate esterC10 H17 N6 O13 P32
MGMagnesium ionMg2
A1AOL(3R)-N-[(2S)-1-{[(1M,8R,10R,14S,21M)-22-ethyl-4-hydroxy-21-{2-[(1R)-1-methoxyet…C51 H67 N7 O82

Water and common crystallization additives (CL) are not listed.

Primary citation

Discovery of Elironrasib (RMC-6291), a Potent and Orally Bioavailable, RAS(ON) G12C-Selective, Covalent Tricomplex Inhibitor for the Treatment of Patients with RAS G12C-Addicted Cancers. Cregg, J., Pota, K., Tomlinson, A.C.A. et al. J Med Chem (2025) 68:6041-6063. DOI 10.1021/acs.jmedchem.4c02313 · PubMed

Other PDB entries of the same protein (UniProt P01116 (AlphaFold model), which also has an AlphaFold model), best resolution first:

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