2AOB

Crystal structures of a high-affinity macrocyclic peptide mimetic in complex with the Grb2 SH2 domain

Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.80 Å
  • R-Value Free: 0.293 
  • R-Value Work: 0.232 
  • R-Value Observed: 0.235 

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This is version 1.3 of the entry. See complete history. 


Literature

Crystal Structures of a High-affinity Macrocyclic Peptide Mimetic in Complex with the Grb2 SH2 Domain.

Phan, J., Shi, Z.D., Burke, T.R., Waugh, D.S.

(2005) J Mol Biol 353: 104-115

  • DOI: 10.1016/j.jmb.2005.08.037
  • Primary Citation of Related Structures:  
    2AOB, 2AOA

  • PubMed Abstract: 

    • The high-affinity binding of the growth factor receptor-bound protein 2 (Grb2) SH2 domain to tyrosine-phosphorylated cytosolic domains of receptor tyrosine kinases (RTKs) is an attractive target for therapeutic intervention in many types of cancer. We re ...

    The high-affinity binding of the growth factor receptor-bound protein 2 (Grb2) SH2 domain to tyrosine-phosphorylated cytosolic domains of receptor tyrosine kinases (RTKs) is an attractive target for therapeutic intervention in many types of cancer. We report here two crystal forms of a complex between the Grb2 SH2 domain and a potent non-phosphorus-containing macrocyclic peptide mimetic that exhibits significant anti-proliferative effects against erbB-2-dependent breast cancers. This agent represents a "second generation" inhibitor with greatly improved binding affinity and bio-availability compared to its open-chain counterpart. The structures were determined at 2.0A and 1.8A with one and two domain-swapped dimers per asymmetric unit, respectively. The mode of binding and specific interactions between the protein and the inhibitor provide insight into the high potency of this class of macrocylic compounds and may aid in further optimization as part of the iterative rational drug design process.

    Organizational Affiliation: 

    Macromolecular Crystallography Laboratory Center for Cancer Research, National Cancer Institute at Frederick, P.O. Box B, Frederick, MD 21702-1201, USA.



Macromolecules
Find similar proteins by: 
(by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Growth factor receptor-bound protein 2 A, B, C, D99Homo sapiensMutation(s): 0 
Gene Names: GRB2, ASH
Find proteins for P62993 (Homo sapiens)
Explore P62993 
Go to UniProtKB:  P62993
NIH Common Fund Data Resources
PHAROS:  P62993
GTEx:  ENSG00000177885
Protein Feature View
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.80 Å
  • R-Value Free: 0.293 
  • R-Value Work: 0.232 
  • R-Value Observed: 0.235 
  • Space Group: C 2 2 21
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 87.817α = 90
b = 106.191β = 90
c = 102.083γ = 90
Software Package:
Software NamePurpose
REFMACrefinement
MAR345data collection
SCALEPACKdata scaling
PHASERphasing

Structure Validation

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View more in-depth experimental data

Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2005-10-04
    Type: Initial release
  • Version 1.1: 2008-04-30
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Advisory, Derived calculations, Version format compliance
  • Version 1.3: 2017-10-11
    Changes: Refinement description