7RP4

Crystal structure of KRAS G12C in complex with GNE-1952


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.15 Å
  • R-Value Free: 0.253 
  • R-Value Work: 0.213 
  • R-Value Observed: 0.215 

Starting Model: experimental
View more details

wwPDB Validation   3D Report Full Report


Ligand Structure Quality Assessment 


This is version 1.2 of the entry. See complete history


Literature

Conformation-locking antibodies for the discovery and characterization of KRAS inhibitors.

Davies, C.W.Oh, A.J.Mroue, R.Steffek, M.Bruning, J.M.Xiao, Y.Feng, S.Jayakar, S.Chan, E.Arumugam, V.Uribe, S.C.Drummond, J.Frommlet, A.Lu, C.Franke, Y.Merchant, M.Koeppen, H.Quinn, J.G.Malhotra, S.Do, S.Gazzard, L.Purkey, H.E.Rudolph, J.Mulvihill, M.M.Koerber, J.T.Wang, W.Evangelista, M.

(2022) Nat Biotechnol 40: 769-778

  • DOI: https://doi.org/10.1038/s41587-021-01126-9
  • Primary Citation of Related Structures:  
    7MDP, 7RP2, 7RP3, 7RP4

  • PubMed Abstract: 

    Small molecules that stabilize inactive protein conformations are an underutilized strategy for drugging dynamic or otherwise intractable proteins. To facilitate the discovery and characterization of such inhibitors, we created a screening platform to identify conformation-locking antibodies for molecular probes (CLAMPs) that distinguish and induce rare protein conformational states. Applying the approach to KRAS, we discovered CLAMPs that recognize the open conformation of KRAS G12C stabilized by covalent inhibitors. One CLAMP enables the visualization of KRAS G12C covalent modification in vivo and can be used to investigate response heterogeneity to KRAS G12C inhibitors in patient tumors. A second CLAMP enhances the affinity of weak ligands binding to the KRAS G12C switch II region (SWII) by stabilizing a specific conformation of KRAS G12C , thereby enabling the discovery of such ligands that could serve as leads for the development of drugs in a high-throughput screen. We show that combining the complementary properties of antibodies and small molecules facilitates the study and drugging of dynamic proteins.


  • Organizational Affiliation

    Department of Antibody Engineering, Genentech, Inc., South San Francisco, CA, USA.


Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
Isoform 2B of GTPase KRas
A, B
170Homo sapiensMutation(s): 1 
Gene Names: KRASKRAS2RASK2
EC: 3.6.5.2
UniProt & NIH Common Fund Data Resources
Find proteins for P01116 (Homo sapiens)
Explore P01116 
Go to UniProtKB:  P01116
PHAROS:  P01116
GTEx:  ENSG00000133703 
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP01116
Sequence Annotations
Expand
  • Reference Sequence
Small Molecules
Ligands 4 Unique
IDChains Name / Formula / InChI Key2D Diagram3D Interactions
GDP
Query on GDP

Download Ideal Coordinates CCD File 
D [auth A],
G [auth B]
GUANOSINE-5'-DIPHOSPHATE
C10 H15 N5 O11 P2
QGWNDRXFNXRZMB-UUOKFMHZSA-N
MKZ (Subject of Investigation/LOI)
Query on MKZ

Download Ideal Coordinates CCD File 
C [auth A],
F [auth B]
1-[4-[6-chloranyl-7-(5-methyl-1~{H}-indazol-4-yl)quinazolin-4-yl]piperazin-1-yl]propan-1-one
C23 H23 Cl N6 O
TWMDOOBUQKHYLW-UHFFFAOYSA-N
GOL
Query on GOL

Download Ideal Coordinates CCD File 
I [auth B]GLYCEROL
C3 H8 O3
PEDCQBHIVMGVHV-UHFFFAOYSA-N
MG
Query on MG

Download Ideal Coordinates CCD File 
E [auth A],
H [auth B]
MAGNESIUM ION
Mg
JLVVSXFLKOJNIY-UHFFFAOYSA-N
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.15 Å
  • R-Value Free: 0.253 
  • R-Value Work: 0.213 
  • R-Value Observed: 0.215 
  • Space Group: P 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 33.586α = 88.97
b = 43.985β = 84.94
c = 65.305γ = 80.01
Software Package:
Software NamePurpose
Aimlessdata scaling
PHENIXrefinement
PDB_EXTRACTdata extraction
XDSdata reduction
PHASERphasing

Structure Validation

View Full Validation Report



Ligand Structure Quality Assessment 


Entry History & Funding Information

Deposition Data


Funding OrganizationLocationGrant Number
Other private--

Revision History  (Full details and data files)

  • Version 1.0: 2022-03-16
    Type: Initial release
  • Version 1.1: 2022-06-01
    Changes: Database references
  • Version 1.2: 2023-10-18
    Changes: Data collection, Refinement description