Crystal Structure of Ephrin A2 (ephA2) Receptor Protein Kinase

Experimental Data Snapshot

  • Resolution: 2.30 Å
  • R-Value Free: 0.288 
  • R-Value Work: 0.236 
  • R-Value Observed: 0.236 

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This is version 1.3 of the entry. See complete history


Structures of the Cancer Related Aurora-A, FAK and EphA2 Protein Kinases from Nanovolume Crystallography

Nowakowski, J.Cronin, C.N.McRee, D.E.Knuth, M.W.Nelson, C.Pavletich, N.Rogers, J.Sang, B.C.Scheibe, D.N.Swanson, R.V.Thompson, D.A.

(2003) Structure 10: 1659-1667

  • DOI: https://doi.org/10.1016/s0969-2126(02)00907-3
  • Primary Citation of Related Structures:  
    1MP8, 1MQ4, 1MQB

  • PubMed Abstract: 

    Protein kinases are important drug targets in human cancers, inflammation, and metabolic diseases. This report presents the structures of kinase domains for three cancer-associated protein kinases: ephrin receptor A2 (EphA2), focal adhesion kinase (FAK), and Aurora-A. The expression profiles of EphA2, FAK, and Aurora-A in carcinomas suggest that inhibitors of these kinases may have inherent potential as therapeutic agents. The structures were determined from crystals grown in nanovolume droplets, which produced high-resolution diffraction data at 1.7, 1.9, and 2.3 A for FAK, Aurora-A, and EphA2, respectively. The FAK and Aurora-A structures are the first determined within two unique subfamilies of human kinases, and all three structures provide new insights into kinase regulation and the design of selective inhibitors.

  • Organizational Affiliation

    Syrrx, Inc., 10410 Science Center Drive, San Diego, CA 92121, USA. jacek.nowakoski@syrrx.com

Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
Ephrin type-A receptor 2
A, B
333Homo sapiensMutation(s): 0 
Gene Names: EphA2
UniProt & NIH Common Fund Data Resources
Find proteins for P29317 (Homo sapiens)
Explore P29317 
Go to UniProtKB:  P29317
GTEx:  ENSG00000142627 
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP29317
Sequence Annotations
  • Reference Sequence
Small Molecules
Ligands 1 Unique
IDChains Name / Formula / InChI Key2D Diagram3D Interactions
Query on ANP

Download Ideal Coordinates CCD File 
C [auth A],
D [auth B]
C10 H17 N6 O12 P3
Experimental Data & Validation

Experimental Data

  • Resolution: 2.30 Å
  • R-Value Free: 0.288 
  • R-Value Work: 0.236 
  • R-Value Observed: 0.236 
  • Space Group: P 32 2 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 72.127α = 90
b = 72.127β = 90
c = 241.623γ = 120
Software Package:
Software NamePurpose
MOSFLMdata reduction
SCALAdata scaling
CCP4data scaling

Structure Validation

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Entry History 

Revision History  (Full details and data files)

  • Version 1.0: 2003-09-16
    Type: Initial release
  • Version 1.1: 2008-04-28
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Version format compliance
  • Version 1.3: 2024-02-14
    Changes: Data collection, Database references, Derived calculations, Refinement description