4IYQ | pdb_00004iyq

Crystal structure of divalent ion tolerance protein CutA1 from Ehrlichia chaffeensis

• PDB DOI: https://doi.org/10.2210/pdb4IYQ/pdb

• Classification: PROTEIN BINDING
• Organism(s): Ehrlichia chaffeensis str. Arkansas
• Expression System: Escherichia coli BL21(DE3)
• Mutation(s): No 


• Deposited: 2013-01-29 Released: 2013-02-13 
• Deposition Author(s): Seattle Structural Genomics Center for Infectious Disease (SSGCID)

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.55 Å
• R-Value Free: 
  0.219 (Depositor), 0.220 (DCC) 
• R-Value Work: 
  0.168 (Depositor), 0.169 (DCC) 
• R-Value Observed: 
  0.171 (Depositor) 

Starting Model: experimental

Literature

Crystal structure of divalent ion tolerance protein CutA1 from Ehrlichia chaffeensis

Seattle Structural Genomics Center for Infectious Disease (SSGCID), Abendroth, J., Sankaran, B., Buchko, G.W., Craig, T., Lorimer, D., Edwards, T.E.

To be published.

Biological Assembly 1  

Global Symmetry: Cyclic - C3  (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: 43.23 kDa 
• Atom Count: 2,557 
• Modeled Residue Count: 321 
• Deposited Residue Count: 381 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Divalent ion tolerance protein CutA1	A, B, C	127	Ehrlichia chaffeensis str. Arkansas	Mutation(s): 0  Gene Names: cutA1, ECH_0756
UniProt
Find proteins for Q2GG79 (Ehrlichia chaffeensis (strain ATCC CRL-10679 / Arkansas)) Explore Q2GG79  Go to UniProtKB:  Q2GG79

Small Molecules

Ligands 1 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
CA	D [auth A], E [auth A], F [auth B], G [auth C], H [auth C]	CALCIUM ION Ca BHPQYMZQTOCNFJ-UHFFFAOYSA-N

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.55 Å
• R-Value Free:  0.219 (Depositor), 0.220 (DCC) 
• R-Value Work:  0.168 (Depositor), 0.169 (DCC) 
• R-Value Observed: 0.171 (Depositor) 

Diffraction Data: https://doi.org/10.18430/M34IYQ

Space Group: P 1 2₁ 1

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 87.49	α = 90
b = 32.58	β = 119.65
c = 89.08	γ = 90

Software Package:

Software Name	Purpose
XSCALE	data scaling
PHASER	phasing
PHENIX	refinement
PDB_EXTRACT	data extraction
BOS	data collection
XDS	data reduction

Structure Validation

Entry History 

Deposition Data

• Released Date: 2013-02-13 
Deposition Author(s): Seattle Structural Genomics Center for Infectious Disease (SSGCID)

Revision History  

• Version 1.0: 2013-02-13
  Type: Initial release
  
• Version 1.1: 2023-09-20
  Changes: Data collection, Database references, Derived calculations, Refinement description