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: 2.50 kDa 
• Atom Count: 171 
• Residue Count: 21 
• Unique protein chains: 1

1EDN

HUMAN ENDOTHELIN-1

• DOI: 10.2210/pdb1EDN/pdb

• Classification: VASOCONSTRICTOR
• Organism(s): Homo sapiens
• Mutation(s): No 


• Deposited: 1994-09-19 Released: 1995-10-15 
• Deposition Author(s): Wallace, B.A., Janes, R.W.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.18 Å
• R-Value Observed: 0.199 

Literature

The crystal structure of human endothelin.

Janes, R.W., Peapus, D.H., Wallace, B.A.

(1994) Nat Struct Biol 1: 311-319

• PubMed: 7664037 
• DOI: 10.1038/nsb0594-311
• Primary Citation of Related Structures:  
  1EDN


• PubMed Abstract: 
  

The three-dimensional structure of the vasoactive polypeptide endothelin, the most potent vasoconstrictor yet identified, has been determined by X-ray crystallography to 2.18 A resolution. This intermediate-sized structure was solved by molecular replacement techniques using a fragment of an NMR-derived model for initial phasing of the data. However, comparisons of the final X-ray structure with the many diverse models derived from NMR data indicate some important differences, especially in the carboxy-terminal region of the molecule: the entire carboxy terminal tail (residues 16-21) is helical in the crystal structure, but not in any of the NMR structures. This may be a functionally significant difference as this region is crucial for receptor binding and vasoactivity.

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Related Citations: 

• Comparison of the Structure of the Endothelin Receptor Agonist Bq123 with the Crystal Structure of the C-Terminal Tail of Endothelin
  Peishoff, C.E., Janes, R.W., Wallace, B.A.
  () To be published --: --

• A Comparison of X-Ray and NMR Structures for Human Endothelin-1
  Wallace, B.A., Janes, R.W., Bassolino, D., Krystek Junior, S.
  (1995) Protein Sci 4: 75

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Organizational Affiliation: 

Department of Crystallography, Birkbeck College, University of London, UK.

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
ENDOTHELIN-1	A	21	Homo sapiens	Mutation(s): 0  Gene Names: EDN1
Find proteins for P05305 (Homo sapiens) Explore P05305  Go to UniProtKB:  P05305
NIH Common Fund Data Resources
PHAROS  P05305 GTEx  ENSG00000078401

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.18 Å
• R-Value Observed: 0.199 
• Space Group: P 6₁ 2 2

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 33.35	α = 90
b = 33.35	β = 90
c = 59.28	γ = 120

Software Package:

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

Structure Validation

Entry History 

Deposition Data

• Deposited Date: 1994-09-19 
• Released Date: 1995-10-15 
Deposition Author(s): Wallace, B.A., Janes, R.W.

Revision History 

• Version 1.0: 1995-10-15
  Type: Initial release
  
• Version 1.1: 2008-03-24
  Changes: Version format compliance
• Version 1.2: 2011-07-13
  Changes: Version format compliance