4DDD

Crystal structure of an immunogenic protein from ehrlichia chaffeensis

• PDB DOI: https://doi.org/10.2210/pdb4DDD/pdb

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


• Deposited: 2012-01-18 Released: 2012-05-23 
• Deposition Author(s): Seattle Structural Genomics Center for Infectious Disease (SSGCID)

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.90 Å
• R-Value Free: 0.188 
• R-Value Work: 0.159 
• R-Value Observed: 0.161 

Literature

Crystal structure of an immunogenic protein from ehrlichia chaffeensis

Seattle Structural Genomics Center for Infectious Disease (SSGCID), Abendroth, J., Gardberg, A.S., Staker, B.L.

To be published.

Biological Assembly 1  

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

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

Macromolecule Content

• Total Structure Weight: 36.4 kDa 
• Atom Count: 2,706 
• Modelled Residue Count: 300 
• Deposited Residue Count: 327 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Immunogenic protein	A	327	Ehrlichia chaffeensis str. Arkansas	Mutation(s): 0  Gene Names: ECH_0645
UniProt
Find proteins for Q2GGH8 (Ehrlichia chaffeensis (strain ATCC CRL-10679 / Arkansas)) Explore Q2GGH8  Go to UniProtKB:  Q2GGH8

Small Molecules

Ligands 3 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
GOL	F [auth A]	GLYCEROL C3 H8 O3 PEDCQBHIVMGVHV-UHFFFAOYSA-N
EDO	C [auth A], D [auth A], E [auth A]	1,2-ETHANEDIOL C2 H6 O2 LYCAIKOWRPUZTN-UHFFFAOYSA-N
CL	B [auth A]	CHLORIDE ION Cl VEXZGXHMUGYJMC-UHFFFAOYSA-M

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 1.90 Å
• R-Value Free: 0.188 
• R-Value Work: 0.159 
• R-Value Observed: 0.161 
• Space Group: P 2₁ 2₁ 2₁
• Diffraction Data: https://doi.org/10.18430/M34DDD

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 62.71	α = 90
b = 65.44	β = 90
c = 90.97	γ = 90

Software Package:

Software Name	Purpose
StructureStudio	data collection
PHASER	phasing
REFMAC	refinement
XDS	data reduction
XSCALE	data scaling

Structure Validation

Entry History 

Deposition Data

• Released Date: 2012-05-23 
Deposition Author(s): Seattle Structural Genomics Center for Infectious Disease (SSGCID)

Revision History  

• Version 1.0: 2012-05-23
  Type: Initial release