3PZK

Crystal Structure of the Mycobacterium tuberculosis crotonase in apo form

• PDB DOI: https://doi.org/10.2210/pdb3PZK/pdb

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


• Deposited: 2010-12-14 Released: 2011-03-23 
• Deposition Author(s): Bruning, J.B., Delgado, E., Ghosh, S., Sacchettini, J.C., TB Structural Genomics Consortium (TBSGC)

---

Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.23 Å
• R-Value Free: 
  0.238 (Depositor), 0.240 (DCC) 
• R-Value Work: 
  0.203 (Depositor), 0.200 (DCC) 

Starting Model: experimental

Literature

Crystal Structure of the Prokaryotic Crotonase

Bruning, J.B., Delgado, E., Ghosh, 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)

Biological Assembly 2  

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

Biological assembly 2 generated by PISA (software)

Macromolecule Content

• Total Structure Weight: 82.09 kDa 
• Atom Count: 5,709 
• Modelled Residue Count: 749 
• Deposited Residue Count: 771 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
e enoyl-CoA hydratase echA8	A, B, C	257	Mycobacterium tuberculosis	Mutation(s): 0  Gene Names: echA8, MT1100, MTV017.23c, Rv1070c EC: 4.2.1.17
UniProt
Find proteins for P9WNN9 (Mycobacterium tuberculosis (strain ATCC 25618 / H37Rv)) Explore P9WNN9  Go to UniProtKB:  P9WNN9

Small Molecules

Ligands 1 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
SO4	D [auth A], E [auth B]	SULFATE ION O4 S QAOWNCQODCNURD-UHFFFAOYSA-L

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.23 Å
• R-Value Free:  0.238 (Depositor), 0.240 (DCC) 
• R-Value Work:  0.203 (Depositor), 0.200 (DCC) 

Space Group: C 2 2 2₁

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 133.796	α = 90
b = 133.734	β = 90
c = 103.45	γ = 90

Software Package:

Software Name	Purpose
SCALEPACK	data scaling
PHASER	phasing
PHENIX	refinement
PDB_EXTRACT	data extraction
HKL-2000	data collection
DENZO	data reduction

Structure Validation

Entry History 

Deposition Data

• Released Date: 2011-03-23 
Deposition Author(s): Bruning, J.B., Delgado, E., Ghosh, S., Sacchettini, J.C., TB Structural Genomics Consortium (TBSGC)

Revision History  

• Version 1.0: 2011-03-23
  Type: Initial release
  
• Version 1.1: 2011-07-13
  Changes: Version format compliance
• Version 1.2: 2017-11-08
  Changes: Refinement description
• Version 1.3: 2023-09-13
  Changes: Data collection, Database references, Derived calculations, Refinement description