4FN7

Apo Structure of the Mtb enoyol CoA isomerase (Rv0632c)

• PDB DOI: https://doi.org/10.2210/pdb4FN7/pdb

• Classification: ISOMERASE
• Organism(s): Mycobacterium tuberculosis
• Expression System: Escherichia coli BL21(DE3)
• Mutation(s): No 


• Deposited: 2012-06-19 Released: 2013-05-29 
• Deposition Author(s): Bruning, J.B., Gao, N., Hernandez, E.D., Li, H., Dang, N., Hung, L.W., Sacchettini, J.C., TB Structural Genomics Consortium (TBSGC)

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.25 Å
• R-Value Free: 0.183 
• R-Value Work: 0.149 
• R-Value Observed: 0.150 

Literature

"Crystal Structure and Mechanism of the Prokaryotic Enoyl-CoA Isomerase (ECI)"

Bruning, J.B., Gao, N., Hernandez, E.D., Li, H., Dang, N., Hung, L.W., Moran, S., Sacchettini, J.C.

To be published.

Biological Assembly 1  

Global Symmetry: Cyclic - C3  (Explore in 3D)
Global Stoichiometry: Homo 3-mer - A3 

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

Macromolecule Content

• Total Structure Weight: 73.18 kDa 
• Atom Count: 6,185 
• Modelled Residue Count: 687 
• Deposited Residue Count: 693 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Enoyl-CoA hydratase/isomerase family protein	A, B, C	231	Mycobacterium tuberculosis	Mutation(s): 0  Gene Names: echA3, MT0660, Rv0632c EC: 4.2.1.17
UniProt
Find proteins for I6Y8B5 (Mycobacterium tuberculosis (strain ATCC 25618 / H37Rv)) Explore I6Y8B5  Go to UniProtKB:  I6Y8B5

Small Molecules

Ligands 1 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
CL	D [auth B]	CHLORIDE ION Cl VEXZGXHMUGYJMC-UHFFFAOYSA-M

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 1.25 Å
• R-Value Free: 0.183 
• R-Value Work: 0.149 
• R-Value Observed: 0.150 
• Space Group: P 1 2₁ 1

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 64.132	α = 90
b = 68.681	β = 108.57
c = 75.57	γ = 90

Software Package:

Software Name	Purpose
d*TREK	data reduction
PHASER	phasing
PHENIX	refinement
PDB_EXTRACT	data extraction
HKL-2000	data collection
d*TREK	data scaling

Structure Validation

Entry History 

Deposition Data

• Released Date: 2013-05-29 
Deposition Author(s): Bruning, J.B., Gao, N., Hernandez, E.D., Li, H., Dang, N., Hung, L.W., Sacchettini, J.C., TB Structural Genomics Consortium (TBSGC)

Revision History  

• Version 1.0: 2013-05-29
  Type: Initial release
  
• Version 1.1: 2024-02-28
  Changes: Data collection, Database references, Derived calculations