2G3V | pdb_00002g3v

Crystal structure of CagS (HP0534, Cag13) from Helicobacter pylori

• PDB DOI: https://doi.org/10.2210/pdb2G3V/pdb

• Classification: UNKNOWN FUNCTION
• Organism(s): Helicobacter pylori
• Expression System: Escherichia coli BL21
• Mutation(s): No 


• Deposited: 2006-02-21 Released: 2007-03-06 
• Deposition Author(s): Cendron, L., Tasca, E., Angelini, A., Seydel, A., Battistutta, R., Montecucco, C., Zanotti, G.

---

Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.30 Å
• R-Value Free: 
  0.279 (Depositor), 0.244 (DCC) 
• R-Value Work: 
  0.219 (Depositor) 
• R-Value Observed: 
  0.219 (Depositor) 

Literature

Crystal structure of CagS from helicobacter pylori

Cendron, L., Tasca, E., Angelini, A., Seydel, A., Battistutta, R., Montecucco, C., Zanotti, G.

To be published.

Biological Assembly 1  

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Hetero 2-mer - A1B1 

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

Biological Assembly 2  

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Hetero 2-mer - A1B1 

Biological assembly 2 assigned by authors and generated by PISA (software)

Biological Assembly 3  

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Hetero 2-mer - A1B1 

Biological assembly 3 assigned by authors and generated by PISA (software)

Biological Assembly 4  

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Hetero 2-mer - A1B1 

Biological assembly 4 assigned by authors and generated by PISA (software)

Macromolecule Content 

• Total Structure Weight: 104.97 kDa 
• Atom Count: 5,790 
• Modeled Residue Count: 672 
• Deposited Residue Count: 860 
• Unique protein chains: 2

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
CAG pathogenicity island protein 13	A, B, C, D	208	Helicobacter pylori	Mutation(s): 0  Gene Names: cagS, cag13, HP0534
UniProt
Find proteins for P97227 (Helicobacter pylori (strain ATCC 700392 / 26695)) Explore P97227  Go to UniProtKB:  P97227

Entity ID: 2
Molecule	Chains	Sequence Length	Organism	Details	Image
(UNK)(UNK)(UNK)(UNK)(UNK)(MSE)(UNK)	E, F, G, H	7	N/A	Mutation(s): 0

Small Molecules

Modified Residues  1 Unique
ID	Chains	Modified Residue	Modification Type	Formula	2D Diagram
MSE	A, B, C, D, E, F, G, H	MET	Selenomethionine	C5 H11 N O2 Se

Non-standard Monomers  1 Unique
ID	Chains	Type	Formula	2D Diagram
UNK	E, F, G, H	L-PEPTIDE LINKING	C4 H9 N O2

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.30 Å
• R-Value Free:  0.279 (Depositor), 0.244 (DCC) 
• R-Value Work:  0.219 (Depositor) 
• R-Value Observed: 0.219 (Depositor) 

Space Group: P 4₃

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 124.36	α = 90
b = 124.36	β = 90
c = 55.86	γ = 90

Software Package:

Software Name	Purpose
CNS	refinement
MOSFLM	data reduction
CCP4	data scaling
SHELX	phasing

Structure Validation

Entry History 

Deposition Data

• Released Date: 2007-03-06 
Deposition Author(s): Cendron, L., Tasca, E., Angelini, A., Seydel, A., Battistutta, R., Montecucco, C., Zanotti, G.

Revision History  

• Version 1.0: 2007-03-06
  Type: Initial release
  
• Version 1.1: 2008-05-01
  Changes: Version format compliance
• Version 1.2: 2011-07-13
  Changes: Version format compliance
• Version 1.3: 2024-10-23
  Changes: Data collection, Database references, Derived calculations, Structure summary