4RGX

Crystal Structure of Putative MarR Family Transcriptional Regulator HcaR from Acinetobacter sp. ADP complexed with 3,4-dihydroxy bezoic acid

• PDB DOI: https://doi.org/10.2210/pdb4RGX/pdb

• Classification: TRANSCRIPTION
• Organism(s): Acinetobacter baylyi ADP1
• Expression System: Escherichia coli BL21(DE3)
• Mutation(s): No 


• Deposited: 2014-09-30 Released: 2015-03-04 
• Deposition Author(s): Kim, Y., Joachimiak, G., Bigelow, L., Cobb, G., Joachimiak, A., Midwest Center for Structural Genomics (MCSG)

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.10 Å
• R-Value Free: 0.219 
• R-Value Work: 0.171 
• R-Value Observed: 0.173 

Literature

Crystal Structure of Putative MarR Family Transcriptional Regulator HcaR from Acinetobacter sp. ADP complexed with 3,4-dihydroxy bezoic acid

Kim, Y., Joachimiak, G., Bigelow, L., Cobb, G., Joachimiak, A.

To be published.

Biological Assembly 1  

Global Symmetry: Dihedral - D2  (Explore in 3D)
Global Stoichiometry: Homo 4-mer - A4 

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

Macromolecule Content

• Total Structure Weight: 37.24 kDa 
• Atom Count: 2,442 
• Modelled Residue Count: 273 
• Deposited Residue Count: 324 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Repressor protein	A, B	162	Acinetobacter baylyi ADP1	Mutation(s): 0  Gene Names: ACIAD1728, hcaR
UniProt
Find proteins for Q7X0D9 (Acinetobacter baylyi (strain ATCC 33305 / BD413 / ADP1)) Explore Q7X0D9  Go to UniProtKB:  Q7X0D9

Small Molecules

Ligands 3 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
DHB	C [auth A], F [auth A]	3,4-DIHYDROXYBENZOIC ACID C7 H6 O4 YQUVCSBJEUQKSH-UHFFFAOYSA-N
EDO	D [auth A], G [auth B]	1,2-ETHANEDIOL C2 H6 O2 LYCAIKOWRPUZTN-UHFFFAOYSA-N
CL	E [auth A], H [auth B]	CHLORIDE ION Cl VEXZGXHMUGYJMC-UHFFFAOYSA-M

Modified Residues  1 Unique
ID	Chains	Type	Formula	2D Diagram	Parent
MSE	A, B	L-PEPTIDE LINKING	C5 H11 N O2 Se		MET

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.10 Å
• R-Value Free: 0.219 
• R-Value Work: 0.171 
• R-Value Observed: 0.173 
• Space Group: P 2₁ 2₁ 2

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 63.584	α = 90
b = 83.105	β = 90
c = 63.049	γ = 90

Software Package:

Software Name	Purpose
SBC-Collect	data collection
HKL-3000	data collection
HKL-3000	phasing
SHELXCD	phasing
SHELXE	model building
MLPHARE	phasing
DM	model building
PHENIX	refinement
HKL-3000	data reduction
HKL-3000	data scaling
DM	phasing

Structure Validation

Entry History 

Deposition Data

• Released Date: 2015-03-04 
Deposition Author(s): Kim, Y., Joachimiak, G., Bigelow, L., Cobb, G., Joachimiak, A., Midwest Center for Structural Genomics (MCSG)

Revision History  

• Version 1.0: 2015-03-04
  Type: Initial release
  
• Version 1.1: 2017-11-22
  Changes: Refinement description