7AN6

Enzyme of biosynthetic pathway

• PDB DOI: https://doi.org/10.2210/pdb7AN6/pdb

• Classification: BIOSYNTHETIC PROTEIN
• Organism(s): Streptomyces coelicolor A3(2)
• Expression System: Escherichia coli
• Mutation(s): Yes 


• Deposited: 2020-10-11 Released: 2022-04-20 
• Deposition Author(s): Archna, A., Breithaupt, C., Stubbs, M.T.
• Funding Organization(s): European Regional Development Fund

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.91 Å
• R-Value Free: 0.244 
• R-Value Work: 0.210 
• R-Value Observed: 0.212 

Literature

Mechanism of chorismate dehydratase MqnA, the first enzyme of the futalosine pathway, proceeds via substrate-assisted catalysis

Prasad, A., Breithaupt, C., Nguyen, D.A., Lilie, H., Ziegler, J., Stubbs, M.T.

(2022) J Biol Chem : 102601

• DOI: https://doi.org/10.1016/j.jbc.2022.102601

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)

Biological Assembly Evidence: gel filtration

Macromolecule Content

• Total Structure Weight: 65.58 kDa 
• Atom Count: 4,881 
• Modelled Residue Count: 570 
• Deposited Residue Count: 582 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Chorismate dehydratase	A, B	291	Streptomyces coelicolor A3(2)	Mutation(s): 1  Gene Names: mqnA, SCO4506 EC: 4.2.1.151
UniProt
Find proteins for Q9L0T8 (Streptomyces coelicolor (strain ATCC BAA-471 / A3(2) / M145)) Explore Q9L0T8  Go to UniProtKB:  Q9L0T8

Small Molecules

Ligands 2 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
ISJ (Subject of Investigation/LOI)	C [auth A], E [auth B]	(3R,4R)-3-[(1-carboxyethenyl)oxy]-4-hydroxycyclohexa-1,5-diene-1-carboxylic acid C10 H10 O6 WTFXTQVDAKGDEY-HTQZYQBOSA-N
GOL	D [auth A]	GLYCEROL C3 H8 O3 PEDCQBHIVMGVHV-UHFFFAOYSA-N

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 1.91 Å
• R-Value Free: 0.244 
• R-Value Work: 0.210 
• R-Value Observed: 0.212 
• Space Group: P 1 2₁ 1

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 44.209	α = 90
b = 95.199	β = 93.54
c = 72.504	γ = 90

Software Package:

Software Name	Purpose
PHENIX	refinement
XDS	data reduction
XSCALE	data scaling
PDB_EXTRACT	data extraction
PHASER	phasing

Structure Validation

Entry History & Funding Information

Deposition Data

• Released Date: 2022-04-20 
Deposition Author(s): Archna, A., Breithaupt, C., Stubbs, M.T.

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Funding Organization	Location	Grant Number
European Regional Development Fund	Germany	--

Revision History  

• Version 1.0: 2022-04-20
  Type: Initial release
  
• Version 1.1: 2022-04-27
  Changes: Database references
• Version 1.2: 2022-10-26
  Changes: Database references
• Version 1.3: 2024-01-31
  Changes: Data collection, Refinement description