1CGD

HYDRATION STRUCTURE OF A COLLAGEN PEPTIDE

• PDB DOI: https://doi.org/10.2210/pdb1CGD/pdb

• Classification: COLLAGEN
• Mutation(s): No 


• Deposited: 1995-06-09 Released: 1996-06-20 
• Deposition Author(s): Bella, J., Brodsky, B., Berman, H.M.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.85 Å
• R-Value Work: 0.172 
• R-Value Observed: 0.172 

Literature

Hydration structure of a collagen peptide.

Bella, J., Brodsky, B., Berman, H.M.

(1995) Structure 3: 893-906

• PubMed: 8535783 
• DOI: https://doi.org/10.1016/S0969-2126(01)00224-6
• Primary Citation of Related Structures:  
  1CGD


• PubMed Abstract: 
  

  The collagen triple helix is a unique protein motif defined by the supercoiling of three polypeptide chains in a polyproline II conformation. It is a major domain of all collagen proteins and is also reported to exist in proteins with host defense function and in several membrane proteins. The triple-helical domain has distinctive properties. Collagen requires a high proportion of the post-translationally modified imino acid 4-hydroxyproline and water to stabilize its conformation and assembly. The crystal structure of a collagen-like peptide determined to 1.85 Angstrum showed that these two features may be related.

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Organizational Affiliation: 

Department of Chemistry, Rutgers University, Piscataway, NJ 08855, USA.

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)

Macromolecule Content

• Total Structure Weight: 8.53 kDa 
• Atom Count: 745 
• Modelled Residue Count: 90 
• Deposited Residue Count: 90 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
COLLAGEN-LIKE PEPTIDE	A, B, C	30	N/A	Mutation(s): 0

Small Molecules

Ligands 1 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
ACY	D [auth A], E [auth A], F [auth A], G [auth A], H [auth B], I [auth C], J [auth C]	ACETIC ACID C2 H4 O2 QTBSBXVTEAMEQO-UHFFFAOYSA-N

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: 1.85 Å
• R-Value Work: 0.172 
• R-Value Observed: 0.172 
• Space Group: C 1 2 1

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 173.46	α = 90
b = 14.057	β = 95.82
c = 25.308	γ = 90

Software Package:

Software Name	Purpose
X-PLOR	refinement
MOLEN	data reduction

Structure Validation

Entry History 

Deposition Data

• Released Date: 1996-06-20 
Deposition Author(s): Bella, J., Brodsky, B., Berman, H.M.

Revision History  

• Version 1.0: 1996-06-20
  Type: Initial release
  
• Version 1.1: 2008-03-24
  Changes: Version format compliance
• Version 1.2: 2011-07-13
  Changes: Version format compliance
• Version 1.3: 2018-04-18
  Changes: Data collection, Other