1AOJ | pdb_00001aoj

THE SH3 DOMAIN OF EPS8 EXISTS AS A NOVEL INTERTWINED DIMER

• PDB DOI: https://doi.org/10.2210/pdb1AOJ/pdb

• Classification: SIGNAL TRANSDUCTION
• Organism(s): Mus musculus
• Expression System: Escherichia coli
• Mutation(s): No 


• Deposited: 1997-07-07 Released: 1998-07-08 
• Deposition Author(s): Kishan, K.V.R., Newcomer, M.E.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.50 Å
• R-Value Free: 
  0.270 (Depositor) 
• R-Value Work: 
  0.193 (Depositor) 

Starting Model: experimental

Literature

The SH3 domain of Eps8 exists as a novel intertwined dimer.

Kishan, K.V., Scita, G., Wong, W.T., Di Fiore, P.P., Newcomer, M.E.

(1997) Nat Struct Biol 4: 739-743

• PubMed: 9303002 
• DOI: https://doi.org/10.1038/nsb0997-739
• Primary Citation Related Structures: 
  1AOJ


• PubMed Abstract: 
  

  SH3 domains are structurally well-characterized as monomeric modular units of protein structure that mediate protein-protein recognition in numerous signal transduction proteins. The X-ray crystallographic structure of the Eps8 SH3 domain reveals a novel variation of the canonical SH3 fold: the SH3 domain from Eps8 is a dimer formed by strand interchange. In addition, co-immunoprecipitation experiments show that intact Eps8 is multimeric in vivo. Hence, the SH3 domain of Eps8 may represent a dimerization motif.

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Organizational Affiliation: 
• Department of Biochemistry, Vanderbilt University School of Medicine, Nashville, TN 37232-0146, USA.

Biological Assembly 1  

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

Biological assembly 1 assigned by authors and generated by PISA (software)

Macromolecule Content 

• Total Structure Weight: 14.09 kDa 
• Atom Count: 1,019 
• Modeled Residue Count: 120 
• Deposited Residue Count: 120 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
EPS8	A, B	60	Mus musculus	Mutation(s): 0
UniProt & NIH Common Fund Data Resources
Find proteins for Q08509 (Mus musculus) Explore Q08509  Go to UniProtKB:  Q08509
IMPC:  MGI:104684

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.50 Å
• R-Value Free:  0.270 (Depositor) 
• R-Value Work:  0.193 (Depositor) 

Space Group: P 1

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 27.69	α = 107.53
b = 28.338	β = 96.83
c = 36.825	γ = 104.51

Software Package:

Software Name	Purpose
ALMN	model building
TNT	refinement
DENZO	data reduction
SCALEPACK	data scaling
CCP4	phasing

Structure Validation

Entry History 

Deposition Data

• Released Date: 1998-07-08 
Deposition Author(s): Kishan, K.V.R., Newcomer, M.E.

Revision History  

• Version 1.0: 1998-07-08
  Type: Initial release
  
• Version 1.1: 2008-03-24
  Changes: Version format compliance
• Version 1.2: 2011-07-13
  Changes: Version format compliance
• Version 1.3: 2023-08-02
  Changes: Database references, Other, Refinement description
• Version 1.4: 2024-05-22
  Changes: Data collection