Biological Assembly 1  

 3D View: Structure | Electron Density | Ligand Interaction

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Global Symmetry: Dihedral - D3  (3D View)
Global Stoichiometry: Homo 6-mer - A6 

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

Macromolecule Content

• Total Structure Weight: 329316.28 
• Atom Count: 22269 
• Residue Count: 2964 
• Unique protein chains: 1

4V1X

The structure of the hexameric atrazine chlorohydrolase, AtzA

• DOI: 10.2210/pdb4V1X/pdb

• Classification: HYDROLASE
• Organism(s): Pseudomonas sp. (strain ADP)
• Expression System: Escherichia coli BL21(DE3)


• Deposited: 2014-10-04 Released: 2015-03-11 
• Deposition Author(s): Peat, T.S., Newman, J., Balotra, S., Lucent, D., Warden, A.C., Scott, C.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.2 Å
• R-Value Free: 0.196 
• R-Value Work: 0.166 

Literature

The Structure of the Hexameric Atrazine Chlorohydrolase Atza.

Peat, T.S., Newman, J., Balotra, S., Lucent, D., Warden, A.C., Scott, C.

(2015) Acta Crystallogr.,Sect.D 71: 710

• PubMed: 25760618 
• DOI: 10.1107/S1399004715000619
• Primary Citation of Related Structures:  
  4V1Y


• PubMed Abstract: 
  

Atrazine chlorohydrolase (AtzA) was discovered and purified in the early 1990s from soil that had been exposed to the widely used herbicide atrazine. It was subsequently found that this enzyme catalyzes the first and necessary step in the breakdown of atrazine by the soil organism Pseudomonas sp. strain ADP. Although it has taken 20 years, a crystal structure of the full hexameric form of AtzA has now been obtained. AtzA is less well adapted to its physiological role (i.e. atrazine dechlorination) than the alternative metal-dependent atrazine chlorohydrolase (TrzN), with a substrate-binding pocket that is under considerable strain and for which the substrate is a poor fit.

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Organizational Affiliation: 

CSIRO Biomedical Manufacturing, Parkville, Australia.

Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details
ATRAZINE CHLOROHYDROLASE	A, B, C, D, E, F	494	Pseudomonas sp. (strain ADP)	Mutation(s): 0  Gene Names: atzA EC: 3.8.1.8
Find proteins for P72156 (Pseudomonas sp. (strain ADP)) Go to UniProtKB:  P72156

Small Molecules

Ligands 2 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram & Interactions
FE	A, B, C, D, E, F	FE (III) ION Fe VTLYFUHAOXGGBS-UHFFFAOYSA-N
PEG	A, B, C, D, E, F	DI(HYDROXYETHYL)ETHER C4 H10 O3 MTHSVFCYNBDYFN-UHFFFAOYSA-N

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.2 Å
• R-Value Free: 0.196 
• R-Value Work: 0.166 
• Space Group: P 2₁ 2₁ 2₁

Unit Cell:

Length (Å)	Angle (°)
a = 117.269	α = 90.00
b = 146.056	β = 90.00
c = 196.361	γ = 90.00

Software Package:

Software Name	Purpose
REFMAC	refinement
PHASER	phasing
XDS	data reduction
Aimless	data scaling

Structure Validation

Entry History 

Deposition Data

• Deposited Date: 2014-10-04 
• Released Date: 2015-03-11 
• Deposition Author(s): Peat, T.S., Newman, J., Balotra, S., Lucent, D., Warden, A.C., Scott, C.

Revision History 

• Version 1.0: 2015-03-11
  Type: Initial release
• Version 1.1: 2015-03-25
  Type: Database references