5AHK

Crystal structure of acetohydroxy acid synthase Pf5 from Pseudomonas protegens

• PDB DOI: https://doi.org/10.2210/pdb5AHK/pdb

• Classification: TRANSFERASE
• Organism(s): Pseudomonas protegens
• Expression System: Escherichia coli BL21(DE3)
• Mutation(s): No 


• Deposited: 2015-02-06 Released: 2016-03-02 
• Deposition Author(s): Dobritzsch, D., Loschonsky, S., Mueller, M., Schneider, G.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.55 Å
• R-Value Free: 0.174 
• R-Value Work: 0.151 
• R-Value Observed: 0.152 

Starting Model: experimental

Literature

The Crystal Structure of the Acetohydroxy Acid Synthase Pf5 from Pseudomonas Protegens

Dobritzsch, D., Loschonsky, S., Mueller, M., Schneider, G.

To be published.

Biological Assembly 1  

Global Symmetry: Cyclic - C2  (Explore in 3D)
Global Stoichiometry: Homo 2-mer - A2 

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

Macromolecule Content

• Total Structure Weight: 132.34 kDa 
• Atom Count: 9,810 
• Modelled Residue Count: 1,101 
• Deposited Residue Count: 1,176 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
ACETOLACTATE SYNTHASE II, LARGE SUBUNIT	A, B	588	Pseudomonas protegens	Mutation(s): 0  EC: 2.2.1.6
UniProt
Find proteins for Q4K6F7 (Pseudomonas fluorescens (strain ATCC BAA-477 / NRRL B-23932 / Pf-5)) Explore Q4K6F7  Go to UniProtKB:  Q4K6F7

Small Molecules

Ligands 3 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
FAD	D [auth A], G [auth B]	FLAVIN-ADENINE DINUCLEOTIDE C27 H33 N9 O15 P2 VWWQXMAJTJZDQX-UYBVJOGSSA-N
TPP	C [auth A], F [auth B]	THIAMINE DIPHOSPHATE C12 H19 N4 O7 P2 S AYEKOFBPNLCAJY-UHFFFAOYSA-O
MG	E [auth A], H [auth B]	MAGNESIUM ION Mg JLVVSXFLKOJNIY-UHFFFAOYSA-N

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 1.55 Å
• R-Value Free: 0.174 
• R-Value Work: 0.151 
• R-Value Observed: 0.152 
• Space Group: P 1 2₁ 1

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 65.22	α = 90
b = 139.87	β = 97.87
c = 65.34	γ = 90

Software Package:

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

Structure Validation

Entry History 

Deposition Data

• Released Date: 2016-03-02 
Deposition Author(s): Dobritzsch, D., Loschonsky, S., Mueller, M., Schneider, G.

Revision History  

• Version 1.0: 2016-03-02
  Type: Initial release
  
• Version 1.1: 2024-01-10
  Changes: Data collection, Database references, Derived calculations, Other, Refinement description