1D2P

CRYSTAL STRUCTURE OF TWO B REPEAT UNITS (B1B2) OF THE COLLAGEN BINDING PROTEIN (CNA) OF STAPHYLOCOCCUS AUREUS

• PDB DOI: https://doi.org/10.2210/pdb1D2P/pdb

• Classification: STRUCTURAL PROTEIN
• Organism(s): Staphylococcus aureus
• Expression System: Escherichia coli
• Mutation(s): No 


• Deposited: 1999-09-25 Released: 2000-09-27 
• Deposition Author(s): Deivanayagam, C.C.S., Rich, R.L., Hook, M., Narayana, S.V.L.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.50 Å
• R-Value Free: 0.245 
• R-Value Work: 0.185 
• R-Value Observed: 0.185 

Literature

Novel fold and assembly of the repetitive B region of the Staphylococcus aureus collagen-binding surface protein.

Deivanayagam, C.C., Rich, R.L., Carson, M., Owens, R.T., Danthuluri, S., Bice, T., Hook, M., Narayana, S.V.

(2000) Structure 8: 67-78

• PubMed: 10673425 
• DOI: https://doi.org/10.1016/s0969-2126(00)00081-2
• Primary Citation of Related Structures:  
  1D2O, 1D2P


• PubMed Abstract: 
  

  [corrected] The Staphylococcus aureus collagen-binding protein Cna mediates bacterial adherence to collagen. The primary sequence of Cna has a non-repetitive collagen-binding A region, followed by the repetitive B region. The B region has one to four 23 kDa repeat units (B(1)-B(4)), depending on the strain of origin. The affinity of the A region for collagen is independent of the B region. However, the B repeat units have been suggested to serve as a 'stalk' that projects the A region from the bacterial surface and thus facilitate bacterial adherence to collagen. To understand the biological role of these B-region repeats we determined their three-dimensional structure.

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Organizational Affiliation: 

Center for Macromolecular Crystallography, School of Optometry, University of Alabama at Birmingham, Birmingham, AL 35294-0005, USA.

Biological Assembly 1  

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Monomer - A1 

Biological assembly 1 assigned by authors.

Macromolecule Content

• Total Structure Weight: 42.41 kDa 
• Atom Count: 3,061 
• Modelled Residue Count: 373 
• Deposited Residue Count: 373 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
COLLAGEN ADHESIN	A	373	Staphylococcus aureus	Mutation(s): 0
UniProt
Find proteins for Q53654 (Staphylococcus aureus) Explore Q53654  Go to UniProtKB:  Q53654

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.50 Å
• R-Value Free: 0.245 
• R-Value Work: 0.185 
• R-Value Observed: 0.185 
• Space Group: P 2₁ 2₁ 2₁

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 42.392	α = 90
b = 79.418	β = 90
c = 130.399	γ = 90

Software Package:

Software Name	Purpose
AMoRE	phasing
CNS	refinement
DENZO	data reduction
SCALEPACK	data scaling

Structure Validation

Entry History 

Deposition Data

• Released Date: 2000-09-27 
Deposition Author(s): Deivanayagam, C.C.S., Rich, R.L., Hook, M., Narayana, S.V.L.

Revision History  

• Version 1.0: 2000-09-27
  Type: Initial release
  
• Version 1.1: 2008-04-27
  Changes: Version format compliance
• Version 1.2: 2011-07-13
  Changes: Version format compliance
• Version 1.3: 2024-02-07
  Changes: Data collection, Database references