Biological Assembly 1  

 3D View: Structure | Electron Density

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Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Homo 16-mer - A16 

Biological assembly 1 assigned by authors.

Macromolecule Content

• Total Structure Weight: 75214.18 
• Atom Count: 4879 
• Residue Count: 656 
• Unique protein chains: 1

1B4F

OLIGOMERIC STRUCTURE OF THE HUMAN EPHB2 RECEPTOR SAM DOMAIN

• DOI: 10.2210/pdb1B4F/pdb

• Classification: SIGNAL TRANSDUCTION
• Organism(s): Homo sapiens
• Expression System: Escherichia coli BL21


• Deposited: 1998-12-20 Released: 1999-02-16 
• Deposition Author(s): Thanos, C.D., Goodwill, K.E., Bowie, J.U.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.95 Å
• R-Value Free: 0.273 
• R-Value Work: 0.228 

Literature

Oligomeric structure of the human EphB2 receptor SAM domain.

Thanos, C.D., Goodwill, K.E., Bowie, J.U.

(1999) Science 283: 833-836

• PubMed: 9933164 


• PubMed Abstract: 
  

The sterile alpha motif (SAM) domain is a protein interaction module that is present in diverse signal-transducing proteins. SAM domains are known to form homo- and hetero-oligomers. The crystal structure of the SAM domain from an Eph receptor tyrosine kinase, EphB2, reveals two large interfaces. In one interface, adjacent monomers exchange amino-terminal peptides that insert into a hydrophobic groove on each neighbor. A second interface is composed of the carboxyl-terminal helix and a nearby loop. A possible oligomer, constructed from a combination of these binding modes, may provide a platform for the formation of larger protein complexes.

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Organizational Affiliation: 

UCLA-DOE Laboratory of Structural Biology and Molecular Medicine and Department of Chemistry and Biochemistry, University of California, Los Angeles, CA 90095, USA.

Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details
EPHB2	A, B, C, D, E, F, G, H	82	Homo sapiens	Mutation(s): 0  Gene Names: EPHB2 (DRT, EPHT3, EPTH3, ERK, HEK5, TYRO5) EC: 2.7.10.1
Find proteins for P29323 (Homo sapiens) Go to Gene View: EPHB2 Go to UniProtKB:  P29323

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 1.95 Å
• R-Value Free: 0.273 
• R-Value Work: 0.228 
• Space Group: P 4₁

Unit Cell:

Length (Å)	Angle (°)
a = 73.897	α = 90.00
b = 73.897	β = 90.00
c = 104.547	γ = 90.00

Software Package:

Software Name	Purpose
SHAKE-N-BAKE	model building
SCALEPACK	data scaling
SHAKE-N-BAKE	phasing
CNS	refinement
CNS	phasing
DENZO	data reduction

Structure Validation

Entry History 

Deposition Data

• Deposited Date: 1998-12-20 
• Released Date: 1999-02-16 
• Deposition Author(s): Thanos, C.D., Goodwill, K.E., Bowie, J.U.

Revision History 

• Version 1.0: 1999-02-16
  Type: Initial release
• Version 1.1: 2008-03-24
  Type: Version format compliance
• Version 1.2: 2011-07-13
  Type: Version format compliance