3HON

Crystal Structure of Human Collagen XVIII Trimerization Domain (cubic form)


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.00 Å
  • R-Value Free: 0.288 
  • R-Value Work: 0.279 
  • R-Value Observed: 0.279 

wwPDB Validation   3D Report Full Report


This is version 1.3 of the entry. See complete history


Literature

Crystal structure of human collagen XVIII trimerization domain: A novel collagen trimerization Fold.

Boudko, S.P.Sasaki, T.Engel, J.Lerch, T.F.Nix, J.Chapman, M.S.Bachinger, H.P.

(2009) J Mol Biol 392: 787-802

  • DOI: 10.1016/j.jmb.2009.07.057
  • Primary Citation of Related Structures:  
    3HON, 3HSH

  • PubMed Abstract: 
  • Collagens contain a unique triple-helical structure with a repeating sequence -G-X-Y-, where proline and hydroxyproline are major constituents in X and Y positions, respectively. Folding of the collagen triple helix requires trimerization domains. Once trimerized, collagen chains are correctly aligned and the folding of the triple helix proceeds in a zipper-like fashion ...

    Collagens contain a unique triple-helical structure with a repeating sequence -G-X-Y-, where proline and hydroxyproline are major constituents in X and Y positions, respectively. Folding of the collagen triple helix requires trimerization domains. Once trimerized, collagen chains are correctly aligned and the folding of the triple helix proceeds in a zipper-like fashion. Here we report the isolation, characterization, and crystal structure of the trimerization domain of human type XVIII collagen, a member of the multiplexin family. This domain differs from all other known trimerization domains in other collagens and exhibits a high trimerization potential at picomolar concentrations. Strong chain association and high specificity of binding are needed for multiplexins, which are present at very low levels.


    Organizational Affiliation

    Research Department of Shriners Hospital for Children, Portland, OR 97239, USA.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Collagen alpha-1(XVIII) chainA56Homo sapiensMutation(s): 1 
Gene Names: COL18A1
UniProt & NIH Common Fund Data Resources
Find proteins for P39060 (Homo sapiens)
Explore P39060 
Go to UniProtKB:  P39060
PHAROS:  P39060
Protein Feature View
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.00 Å
  • R-Value Free: 0.288 
  • R-Value Work: 0.279 
  • R-Value Observed: 0.279 
  • Space Group: I 41 3 2
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 94.876α = 90
b = 94.876β = 90
c = 94.876γ = 90
Software Package:
Software NamePurpose
JBluIce-EPICSdata collection
Blu-Icedata collection
PHENIXmodel building
CNSrefinement
MOSFLMdata reduction
SCALAdata scaling
PHENIXphasing

Structure Validation

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Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2009-08-11
    Type: Initial release
  • Version 1.1: 2011-07-13
    Changes: Version format compliance
  • Version 1.2: 2017-11-01
    Changes: Refinement description
  • Version 1.3: 2018-03-14
    Changes: Database references