1K6F

Crystal Structure of the Collagen Triple Helix Model [(Pro-Pro-Gly)10]3


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.3 Å
  • R-Value Free: 0.297 
  • R-Value Work: 0.181 

wwPDB Validation 3D Report Full Report


This is version 1.4 of the entry. See complete history

Literature

Crystal structure of the collagen triple helix model [(Pro-Pro-Gly)(10)](3)

Berisio, R.Vitagliano, L.Mazzarella, L.Zagari, A.

(2002) Protein Sci. 11: 262-270

  • DOI: 10.1110/ps.32602

  • PubMed Abstract: 
  • The first report of the full-length structure of the collagen-like polypeptide [(Pro-Pro-Gly)(10)](3) is given. This structure was obtained from crystals grown in a microgravity environment, which diffracted up to 1.3 A, using synchrotron radiation. ...

    The first report of the full-length structure of the collagen-like polypeptide [(Pro-Pro-Gly)(10)](3) is given. This structure was obtained from crystals grown in a microgravity environment, which diffracted up to 1.3 A, using synchrotron radiation. The final model, which was refined to an R(factor) of 0.18, is the highest-resolution description of a collagen triple helix reported to date. This structure provides clues regarding a series of aspects related to collagen triple helix structure and assembly. The strict dependence of proline puckering on the position inside the Pro-Pro-Gly triplets and the correlation between backbone and side chain dihedral angles support the propensity-based mechanism of triple helix stabilization/destabilization induced by hydroxyproline. Furthermore, the analysis of [(Pro-Pro-Gly)(10)](3) packing, which is governed by electrostatic interactions, suggests that charges may act as locking features in the axial organization of triple helices in the collagen fibrils.


    Related Citations: 
    • Preferred proline puckering in cis and trans peptide groups: implications for collagen stability
      Vitagliano, L.,Berisio, R.,Mastrangelo, A.,Mazzarella, L.,Zagari, A.
      (2001) Protein Sci. 10: 2627
    • Structural Bases of Collagen Stabilization Induced by Proline Hydroxylation
      Vitagliano, L.,Berisio, R.,Mazzarella, L.,Zagari, A.
      (2001) Biopolymers 58: 459
    • Crystal Structure of a Collagen-Like Polypeptide with Repeating Sequence Pro-Hyp-Gly at 1.4 A Resolution: Implications for Collagen Hydration
      Berisio, R.,Vitagliano, L.,Mazzarella, L.,Zagari, A.
      (2001) Biopolymers 56: 8


    Organizational Affiliation

    Centro di Studio di Biocristallografia, CNR, I-80134 Napoli, Italy.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
collagen triple helix
A, B, C, D, E, F
30Saimiriine herpesvirus 2Mutation(s): 0 
Gene Names: stpC
Find proteins for Q80BK4 (Saimiriine herpesvirus 2)
Go to UniProtKB:  Q80BK4
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.3 Å
  • R-Value Free: 0.297 
  • R-Value Work: 0.181 
  • Space Group: P 21 21 21
Unit Cell:
Length (Å)Angle (°)
a = 26.907α = 90.00
b = 26.357β = 90.00
c = 182.498γ = 90.00
Software Package:
Software NamePurpose
DENZOdata reduction
ARP/wARPmodel building
SCALEPACKdata scaling
SHELXL-97refinement

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2002-01-30
    Type: Initial release
  • Version 1.1: 2008-04-27
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance
  • Version 1.3: 2018-01-24
    Type: Database references, Structure summary
  • Version 1.4: 2018-01-31
    Type: Experimental preparation