7CWK

Structure of a triple-helix region of human collagen type I

• PDB DOI: https://doi.org/10.2210/pdb7CWK/pdb

• Classification: STRUCTURAL PROTEIN
• Organism(s): Homo sapiens
• Mutation(s): No 


• Deposited: 2020-08-29 Released: 2021-09-01 
• Deposition Author(s): Zhu, Y., Yang, X., Sun, F.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.54 Å
• R-Value Free: 0.245 
• R-Value Work: 0.208 
• R-Value Observed: 0.210 

Starting Model: experimental

Literature

Conformation in a triple-helix region of human collagen type I

Zhu, Y., Yang, X., Sun, F.

To be published.

Biological Assembly 1  

Global Symmetry: Helical - H  (Explore in 3D)
Global Stoichiometry: Homo 3-mer - A3 

Biological assembly 1 assigned by authors and generated by PISA (software)

Biological Assembly Evidence: gel filtration

Macromolecule Content

• Total Structure Weight: 7.9 kDa 
• Atom Count: 725 
• Modelled Residue Count: 82 
• Deposited Residue Count: 84 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Collagen type I	A, B, C	28	Homo sapiens	Mutation(s): 0

Small Molecules

Modified Residues  1 Unique
ID	Chains	Type	Formula	2D Diagram	Parent
HYP	A, B, C	L-PEPTIDE LINKING	C5 H9 N O3		PRO

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 1.54 Å
• R-Value Free: 0.245 
• R-Value Work: 0.208 
• R-Value Observed: 0.210 
• Space Group: C 1 2 1

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 90.354	α = 90
b = 19.35	β = 110.59
c = 37.11	γ = 90

Software Package:

Software Name	Purpose
PHENIX	refinement
XDS	data reduction
Aimless	data scaling
PHASER	phasing
PDB_EXTRACT	data extraction

Structure Validation

Entry History 

Deposition Data

• Released Date: 2021-09-01 
Deposition Author(s): Zhu, Y., Yang, X., Sun, F.

Revision History  

• Version 1.0: 2021-09-01
  Type: Initial release
  
• Version 1.1: 2023-11-29
  Changes: Data collection, Refinement description