Biological Assembly 1  

 3D View: Structure | Electron Density | Ligand Interaction

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

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

Biological Assembly 2  

 3D View: Structure | Electron Density | Ligand Interaction

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

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

Macromolecule Content

• Total Structure Weight: 118.28 kDa 
• Atom Count: 8614 
• Residue Count: 1034 
• Unique protein chains: 1

4WV3

Crystal structure of the anthranilate CoA ligase AuaEII in complex with anthranoyl-AMP

• DOI: 10.2210/pdb4WV3/pdb

• Classification: ligase/ligase inhibitor
• Organism(s): Stigmatella aurantiaca
• Expression System: Escherichia coli BL21(DE3)
• Mutation(s): No 


• Deposited: 2014-11-04 Released: 2015-11-11 
• Deposition Author(s): Tsai, S.C., Muller, R., Jackson, D.R., Tu, S.S., Nguyen, M., Barajas, J.F., Pistorious, D., Krug, D.
• Funding Organization(s): National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS)

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.60 Å
• R-Value Free: 0.224 
• R-Value Work: 0.174 
• R-Value Observed: 0.177 

Literature

Structural Insights into Anthranilate Priming during Type II Polyketide Biosynthesis.

Jackson, D.R., Tu, S.S., Nguyen, M., Barajas, J.F., Schaub, A.J., Krug, D., Pistorius, D., Luo, R., Muller, R., Tsai, S.C.

(2016) ACS Chem Biol 11: 95-103

• PubMed: 26473393 
• DOI: 10.1021/acschembio.5b00500
• Primary Citation of Related Structures:  
  4WV3


• PubMed Abstract: 
  

The incorporation of nonacetate starter units during type II polyketide biosynthesis helps diversify natural products. Currently, there are few enzymatic strategies for the incorporation of nonacetate starter units in type II polyketide synthase (PKS) pathways. Here we report the crystal structure of AuaEII, the anthranilate:CoA ligase responsible for the generation of anthraniloyl-CoA, which is used as a starter unit by a type II PKS in aurachin biosynthesis. We present structural and protein sequence comparisons to other aryl:CoA ligases. We also compare the AuaEII crystal structure to a model of a CoA ligase homologue, AuaE, which is present in the same gene cluster. AuaE is predicted to have the same fold as AuaEII, but instead of CoA ligation, AuaE catalyzes acyl transfer of anthranilate from anthraniloyl-CoA to the acyl carrier protein (ACP). Together, this work provides insight into the molecular basis for starter unit selection of anthranilate in type II PKS biosynthesis.

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Organizational Affiliation: 

Department of Microbial Natural Products, Helmholtz-Institute for Pharmaceutical Research Saarland (HIPS), Helmholtz Centre for Infection Research (HZI) and Pharmaceutical Biotechnology, Saarland University , Campus C2 3, 66123 Saarbrücken, Germany.

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Anthranilate-CoA ligase	A, B	529	Stigmatella aurantiaca	Mutation(s): 0  Gene Names: auaEII
Find proteins for F3Y661 (Stigmatella aurantiaca) Explore F3Y661  Go to UniProtKB:  F3Y661

Small Molecules

Ligands 1 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
3UK	A, B	5'-O-[(S)-[(2-aminobenzoyl)oxy](hydroxy)phosphoryl]adenosine C17 H19 N6 O8 P XZXXWUQOHYJTTC-XNIJJKJLSA-N

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.60 Å
• R-Value Free: 0.224 
• R-Value Work: 0.174 
• R-Value Observed: 0.177 
• Space Group: P 2₁ 2₁ 2₁

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 50.054	α = 90
b = 132.219	β = 90
c = 160.118	γ = 90

Software Package:

Software Name	Purpose
PHENIX	refinement
HKL-2000	data scaling
Coot	model building
PHASER	phasing

Structure Validation

Entry History & Funding Information

Deposition Data

• Deposited Date: 2014-11-04 
• Released Date: 2015-11-11 
Deposition Author(s): Tsai, S.C., Muller, R., Jackson, D.R., Tu, S.S., Nguyen, M., Barajas, J.F., Pistorious, D., Krug, D.

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Funding Organization	Location	Grant Number
National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS)	United States	5R01GM100305-03

Revision History 

• Version 1.0: 2015-11-11
  Type: Initial release
  
• Version 1.1: 2015-12-02
  Changes: Database references
• Version 1.2: 2016-01-27
  Changes: Database references
• Version 1.3: 2017-09-20
  Changes: Author supporting evidence, Derived calculations
• Version 1.4: 2019-12-25
  Changes: Author supporting evidence