Biological Assembly 1  

 3D View: Structure

Global Symmetry: Cyclic - C2  (3D View)
Global Stoichiometry: Homo 2-mer - A2 

Biological assembly 1 assigned by authors.

Macromolecule Content

• Total Structure Weight: 50.48 kDa 
• Atom Count: 3468 
• Modelled Residue Count: 422 
• Deposited Residue Count: 434 
• Unique protein chains: 1

1GRI

GRB2

• DOI: 10.2210/pdb1GRI/pdb

• Classification: SIGNAL TRANSDUCTION ADAPTOR
• Organism(s): Homo sapiens
• Expression System: Escherichia coli
• Mutation(s): No 


• Deposited: 1995-02-28 Released: 1996-03-08 
• Deposition Author(s): Maignan, S., Arnoux, B., Ducruix, A.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 3.10 Å
• R-Value Work: 0.213 
• R-Value Observed: 0.213 

Literature

Crystal structure of the mammalian Grb2 adaptor.

Maignan, S., Guilloteau, J.P., Fromage, N., Arnoux, B., Becquart, J., Ducruix, A.

(1995) Science 268: 291-293

• PubMed: 7716522 
• DOI: 10.1126/science.7716522
• Primary Citation of Related Structures:  
  1GRI


• PubMed Abstract: 
  

The mammalian growth factor receptor-binding protein Grb2 is an adaptor that mediates activation of guanine nucleotide exchange on Ras. Grb2 binds to the receptor through its SH2 domain and to the carboxyl-terminal domain of Son of sevenless through its two SH3 domains. It is thus a key element in the signal transduction pathway. The crystal structure of Grb2 was determined to 3.1 angstrom resolution. The asymmetric unit is composed of an embedded dimer. The interlaced junctions between the SH2 and SH3 domains bring the two adjacent faces of the SH3 domains in van der Waals contact but leave room for the binding of proline-rich peptides.

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Organizational Affiliation: 

Laboratoire de Biologie Structurale, Unite Mixte de Recherche CNRS-Université de Paris-Sud, Gif sur Yvette, France.

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
GROWTH FACTOR BOUND PROTEIN 2	A, B	217	Homo sapiens	Mutation(s): 0  Gene Names: HGRB2, GRB2, ASH
UniProt & NIH Common Fund Data Resources
Find proteins for P62993 (Homo sapiens) Explore P62993  Go to UniProtKB:  P62993
PHAROS:  P62993 GTEx:  ENSG00000177885

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 3.10 Å
• R-Value Work: 0.213 
• R-Value Observed: 0.213 
• Space Group: P 4₃

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 88.87	α = 90
b = 88.87	β = 90
c = 97.96	γ = 90

Software Package:

Software Name	Purpose
X-PLOR	model building
X-PLOR	refinement
MOSFLM	data reduction
X-PLOR	phasing

Structure Validation

Entry History 

Deposition Data

• Deposited Date: 1995-02-28 
• Released Date: 1996-03-08 
Deposition Author(s): Maignan, S., Arnoux, B., Ducruix, A.

Revision History  

• Version 1.0: 1996-03-08
  Type: Initial release
  
• Version 1.1: 2008-03-24
  Changes: Version format compliance
• Version 1.2: 2011-07-13
  Changes: Version format compliance