Biological Assembly 1  

 3D View: Structure | Electron Density

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

Biological assembly 1 assigned by authors.

Macromolecule Content

• Total Structure Weight: 11.92 kDa 
• Atom Count: 704 
• Residue Count: 87 
• Unique protein chains: 1

1JL9

Crystal Structure of Human Epidermal Growth Factor

• DOI: 10.2210/pdb1JL9/pdb

• Classification: SIGNALING PROTEIN
• Organism(s): Homo sapiens
• Expression System: Saccharomyces cerevisiae
• Mutation(s): No 


• Deposited: 2001-07-16 Released: 2001-10-24 
• Deposition Author(s): Lu, H.S., Chai, J.J., Li, M., Huang, B.R., He, C.H., Bi, R.C.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 3.00 Å
• R-Value Free: 0.283 
• R-Value Work: 0.231 

Literature

Crystal structure of human epidermal growth factor and its dimerization

Lu, H.S., Chai, J.J., Li, M., Huang, B.R., He, C.H., Bi, R.C.

(2001) J Biol Chem 276: 34913-34917

• PubMed: 11438527 
• DOI: 10.1074/jbc.M102874200
• Primary Citation of Related Structures:  
  1JL9


• PubMed Abstract: 
  

Epidermal growth factor (EGF) is a typical growth-stimulating peptide and functions by binding to specific cell-surface receptors and inducing dimerization of the receptors. Little is known about the molecular mechanism of EGF-induced dimerization of EGF receptors. The crystal structure of human EGF has been determined at pH 8.1. There are two human EGF molecules A and B in the asymmetric unit of the crystals, which form a potential dimer. Importantly, a number of residues known to be indispensable for EGF binding to its receptor are involved in the interface between the two EGF molecules, suggesting a crucial role of EGF dimerization in the EGF-induced dimerization of receptors. In addition, the crystal structure of EGF shares the main features of the NMR structure of mouse EGF determined at pH 2.0, but structural comparisons between different models have revealed new detailed features and properties of the EGF structure.

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Organizational Affiliation: 

Institute of Biophysics, Chinese Academy of Sciences, Beijing 100101, China.

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
EPIDERMAL GROWTH FACTOR	A, B	51	Homo sapiens	Mutation(s): 0  Gene Names: EGF
Find proteins for P01133 (Homo sapiens) Explore P01133  Go to UniProtKB:  P01133
NIH Common Fund Data Resources
PHAROS  P01133 GTEx  ENSG00000138798

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 3.00 Å
• R-Value Free: 0.283 
• R-Value Work: 0.231 
• Space Group: P 3₁ 2 1

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 61.43	α = 90
b = 61.43	β = 90
c = 87.04	γ = 120

Software Package:

Software Name	Purpose
DENZO	data reduction
SCALEPACK	data scaling
DM	model building
X-PLOR	refinement
DM	phasing

Structure Validation

Entry History 

Deposition Data

• Deposited Date: 2001-07-16 
• Released Date: 2001-10-24 
Deposition Author(s): Lu, H.S., Chai, J.J., Li, M., Huang, B.R., He, C.H., Bi, R.C.

Revision History 

• Version 1.0: 2001-10-24
  Type: Initial release
  
• Version 1.1: 2008-04-27
  Changes: Version format compliance
• Version 1.2: 2011-07-13
  Changes: Version format compliance