Murine collagen alpha1(XV), endostatin domain

Experimental Data Snapshot

  • Resolution: 2.00 Å
  • R-Value Free: 0.249 
  • R-Value Work: 0.200 
  • R-Value Observed: 0.200 

Starting Model: experimental
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This is version 1.4 of the entry. See complete history


Endostatin Derived from Collagens Xv and Xviii Differ in Structural and Binding Properties, Tissue Distribution and Anti-Angiogenic Activity

Sasaki, T.Larsson, H.Tisi, D.Claesson-Welsh, L.Hohenester, E.Timpl, R.

(2000) J Mol Biol 301: 1179

  • DOI: https://doi.org/10.1006/jmbi.2000.3996
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 

    Endostatin is a fragment of the C-terminal domain NC1 of collagen XVIII that inhibits angiogenesis and tumor growth. We report the characterization of a collagen XV endostatin analogue and its parent NC1 domain, obtained by recombinant expression in mammalian cells. Both NC1 domains contain a trimerization domain, a hinge region that is more sensitive to proteolysis in collagen XVIII and the endostatin domain. Unlike endostatin-XVIII, endostatin-XV does not bind zinc or heparin, which is explained by the crystal structure of endostatin-XV. The collagen XV and XVIII fragments inhibited chorioallantoic membrane angiogenesis induced by basic fibroblast growth factor (FGF-2) or vascular endothelial growth factor (VEGF), but there are striking differences depending on which cytokine is used and whether free endostatins or NC1 domains are applied. The collagen XV and XVIII fragments showed a similar binding repertoire for extracellular matrix proteins. Differences were found in the immunohistological localization in vessel walls and basement membrane zones. Together, these data indentify endostatin-XV as an angiogenesis inhibitor, which differs from endostatin-XVIII in several important functional details.

  • Organizational Affiliation

    Max-Planck-Institut für Biochemie, Martinsried, D-82152, Germany.

Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
COLLAGEN ALPHA1(XV) CHAIN180Mus musculusMutation(s): 0 
Find proteins for O35206 (Mus musculus)
Explore O35206 
Go to UniProtKB:  O35206
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupO35206
Sequence Annotations
  • Reference Sequence
Small Molecules
Ligands 1 Unique
IDChains Name / Formula / InChI Key2D Diagram3D Interactions
Query on SO4

Download Ideal Coordinates CCD File 
O4 S
Experimental Data & Validation

Experimental Data

  • Resolution: 2.00 Å
  • R-Value Free: 0.249 
  • R-Value Work: 0.200 
  • R-Value Observed: 0.200 
  • Space Group: P 21 21 21
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 33.55α = 90
b = 57.7β = 90
c = 71.67γ = 90
Software Package:
Software NamePurpose
MOSFLMdata reduction
SCALAdata scaling

Structure Validation

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Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2001-01-21
    Type: Initial release
  • Version 1.1: 2011-05-07
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Version format compliance
  • Version 1.3: 2019-05-22
    Changes: Data collection, Other, Refinement description
  • Version 1.4: 2023-12-06
    Changes: Data collection, Database references, Derived calculations, Other, Refinement description