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Crystal structure of small molecule vinylsulfonamide 14 covalently bound to K-RAS G12C

Analyse Crystal structure of small molecule vinylsulfonamide 14 covalently bound to… in the GL1X research workbench: secondary structure, accessibility, pockets, interfaces, conservation, variants, modifications, peptides, crosslinks and neighbours on the 3D structure.

PDB
4M1T
Type
protein
Length
476 residues
Chains
3
Method
x-ray diffraction
Collection
MolNFT v1 / PDB
Contract
0xDE3723766Bc32dcACD03C17BaA400A7B36837Eba
Owner
0x3396CDB397284571d12822B4ae1189a8E22AAAAA
Molecule
K-RAS GTPase
UniProt
P01116
Ligands
GDP, 21M
Pockets
5 · best druggability 0.70

Structure

x-ray diffraction · 3 distinct chains · 39% helix, 25% strand (DSSP).

ChainMoleculeTypeResiduesSecondary structureUniProt
AK-RAS GTPaseprotein16339% helix, 26% strandP01116
BK-RAS GTPaseprotein16240% helix, 23% strandP01116
CK-RAS GTPaseprotein15140% helix, 26% strandP01116

Ligands and binding sites

  • GDP · Guanosine-5'-diphosphate · ligand · 3 copies · chains A, B, C
  • 21M · N-{1-[(2,4-dichlorophenoxy)acetyl]piperidin-4-yl}ethanesulfonamide · ligand · chains B

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

Pockets

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

PocketVolume (ų)DruggabilityBuriednessLining residuesInside
16570.700.7856empty
22980.640.8039empty
3680.490.841821M
4830.480.8223empty
5570.310.7621GDP

Interfaces

2 interfaces between chains.

  • B–C · 389 Ų buried · 2 hydrogen bonds · protein-protein
  • A–B · 375 Ų buried · 6 hydrogen bonds · protein-protein

Modifications

Observed in the structure: 1 covalent (covalent ligand).

Compared structures

  • 4M1T · Crystal Structure of small molecule vinylsulfonamide 14 covalently bound to K-Ras G12C · the same entry in another collection · chain A against A, TM-score 1.00

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