2OKM

Crystal structure of ACE19, the collagen binding subdomain of Enterococcus faecalis surface protein ACE

• PDB DOI: https://doi.org/10.2210/pdb2OKM/pdb

• Classification: CELL ADHESION
• Organism(s): Enterococcus faecalis
• Expression System: Escherichia coli
• Mutation(s): No 


• Deposited: 2007-01-17 Released: 2008-01-22 
• Deposition Author(s): Ponnuraj, K., Narayana, S.V.L.

---

Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.65 Å
• R-Value Free: 0.216 
• R-Value Work: 0.198 

Literature

Crystal structure of ACE19, the collagen binding subdomain of Enterococus faecalis surface protein ACE

Ponnuraj, K., Narayana, S.V.L.

(2007) Proteins 69: 199-203

• PubMed: 17557326 
• DOI: https://doi.org/10.1002/prot.21464
• Primary Citation of Related Structures:  
  2OKM

---

Organizational Affiliation: 

School of Optometry and Center for Biophysical Sciences and Engineering, University of Alabama at Birmingham, Birmingham, Alabama 35294, USA.

Biological Assembly 1  

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

Biological assembly 1 assigned by authors.

Macromolecule Content

• Total Structure Weight: 17.34 kDa 
• Atom Count: 1,384 
• Modelled Residue Count: 146 
• Deposited Residue Count: 147 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Collagen adhesin	A	147	Enterococcus faecalis	Mutation(s): 0
UniProt
Find proteins for Q9F865 (Enterococcus faecalis) Explore Q9F865  Go to UniProtKB:  Q9F865

Small Molecules

Ligands 1 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
SO4	B [auth A], C [auth A]	SULFATE ION O4 S QAOWNCQODCNURD-UHFFFAOYSA-L

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 1.65 Å
• R-Value Free: 0.216 
• R-Value Work: 0.198 
• Space Group: P 2₁ 2₁ 2₁

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 38.432	α = 90
b = 48.912	β = 90
c = 83.728	γ = 90

Software Package:

Software Name	Purpose
CNS	refinement
PDB_EXTRACT	data extraction
HKL-2000	data collection
DENZO	data reduction
SCALEPACK	data scaling
SOLVE	phasing

Structure Validation

Entry History 

Deposition Data

• Released Date: 2008-01-22 
Deposition Author(s): Ponnuraj, K., Narayana, S.V.L.

Revision History  

• Version 1.0: 2008-01-22
  Type: Initial release
  
• Version 1.1: 2011-07-13
  Changes: Version format compliance
• Version 1.2: 2023-12-27
  Changes: Data collection, Database references, Derived calculations