5MLK

Biotin dependent carboxylase AccA3 dimer from Mycobacterium tuberculosis (Rv3285)

Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.94 Å
  • R-Value Free: 0.220 
  • R-Value Work: 0.189 
  • R-Value Observed: 0.190 

wwPDB Validation   3D Report Full Report


This is version 1.1 of the entry. See complete history. 


Literature

Crystal structure of the essential biotin-dependent carboxylase AccA3 from Mycobacterium tuberculosis.

Bennett, M., Hogbom, M.

(2017) FEBS Open Bio 7: 620-626

  • DOI: https://doi.org/10.1002/2211-5463.12212
  • Primary Citation of Related Structures:  
    5MLK

  • PubMed Abstract: 

    Biotin-dependent acetyl-CoA carboxylases catalyze the committed step in type II fatty acid biosynthesis, the main route for production of membrane phospholipids in bacteria, and are considered a key target for antibacterial drug discovery. Here we describe the first structure of AccA3, an essential component of the acetyl-CoA carboxylase system in Mycobacterium tuberculosis (MTb). The structure, sequence comparisons, and modeling of ligand-bound states reveal that the ATP cosubstrate-binding site shows distinct differences compared to other bacterial and eukaryotic biotin carboxylases, including all human homologs. This suggests the possibility to design MTb AccA3 subtype-specific inhibitors.

    • Organizational Affiliation: 

    Department of Biochemistry and Biophysics Arrhenius Laboratories for Natural Sciences Stockholm University Sweden.


Macromolecules
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(by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
Acetyl-COA carboxylase
A, B
614Mycobacterium tuberculosis H37RvMutation(s): 0 
Gene Names: accA3, Rv3285, LH57_17955
UniProt
Find proteins for P96890 (Mycobacterium tuberculosis (strain ATCC 25618 / H37Rv))
Explore P96890 
Go to UniProtKB:  P96890
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP96890
Sequence Annotations
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.94 Å
  • R-Value Free: 0.220 
  • R-Value Work: 0.189 
  • R-Value Observed: 0.190 
  • Space Group: P 21 21 21
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 77.897α = 90
b = 85.206β = 90
c = 148.097γ = 90
Software Package:
Software NamePurpose
PHENIXrefinement
XDSdata reduction
XDSdata scaling
PHASERphasing

Structure Validation

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View more in-depth experimental data
Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2017-03-08
    Type: Initial release
  • Version 1.1: 2017-05-17
    Changes: Database references