BRAF in Complex with RAF265

Experimental Data Snapshot

  • Resolution: 3.17 Å
  • R-Value Free: 0.217 
  • R-Value Work: 0.181 
  • R-Value Observed: 0.183 

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Ligand Structure Quality Assessment 

This is version 1.1 of the entry. See complete history


Discovery of RAF265: A Potent mut-B-RAF Inhibitor for the Treatment of Metastatic Melanoma.

Williams, T.E.Subramanian, S.Verhagen, J.McBride, C.M.Costales, A.Sung, L.Antonios-McCrea, W.McKenna, M.Louie, A.K.Ramurthy, S.Levine, B.Shafer, C.M.Machajewski, T.Renhowe, P.A.Appleton, B.A.Amiri, P.Chou, J.Stuart, D.Aardalen, K.Poon, D.

(2015) ACS Med Chem Lett 6: 961-965

  • DOI: https://doi.org/10.1021/ml500526p
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 

    Abrogation of errant signaling along the MAPK pathway through the inhibition of B-RAF kinase is a validated approach for the treatment of pathway-dependent cancers. We report the development of imidazo-benzimidazoles as potent B-RAF inhibitors. Robust in vivo efficacy coupled with correlating pharmacokinetic/pharmacodynamic (PKPD) and PD-efficacy relationships led to the identification of RAF265, 1, which has advanced into clinical trials.

  • Organizational Affiliation

    Global Discovery Chemistry, Oncology and Exploratory Chemistry, Novartis Institutes for Biomedical Research , 5300 Chiron Way, Emeryville, California 94608, United States.

Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
Serine/threonine-protein kinase B-raf
A, B
281Homo sapiensMutation(s): 0 
UniProt & NIH Common Fund Data Resources
Find proteins for P15056 (Homo sapiens)
Explore P15056 
Go to UniProtKB:  P15056
GTEx:  ENSG00000157764 
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP15056
Sequence Annotations
  • Reference Sequence
Small Molecules
Ligands 1 Unique
IDChains Name / Formula / InChI Key2D Diagram3D Interactions
Query on 55J

Download Ideal Coordinates CCD File 
C [auth A],
D [auth B]
C24 H16 F6 N6 O
Binding Affinity Annotations 
IDSourceBinding Affinity
55J BindingDB:  5CT7 Kd: min: 33, max: 1200 (nM) from 3 assay(s)
IC50: min: 0.5, max: 140 (nM) from 5 assay(s)
Experimental Data & Validation

Experimental Data

  • Resolution: 3.17 Å
  • R-Value Free: 0.217 
  • R-Value Work: 0.181 
  • R-Value Observed: 0.183 
  • Space Group: P 41 21 2
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 109.38α = 90
b = 109.38β = 90
c = 158.13γ = 90
Software Package:
Software NamePurpose
PDB_EXTRACTdata extraction
XDSdata reduction
Aimlessdata scaling

Structure Validation

View Full Validation Report

Ligand Structure Quality Assessment 

Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2015-09-09
    Type: Initial release
  • Version 1.1: 2015-10-07
    Changes: Database references