5MLK

Biotin dependent carboxylase AccA3 dimer from Mycobacterium tuberculosis (Rv3285)


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.939 Å
  • R-Value Free: 0.220 
  • R-Value Work: 0.189 

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: 10.1002/2211-5463.12212

  • 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 de ...

    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 BiophysicsArrhenius Laboratories for Natural SciencesStockholm UniversitySweden.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Acetyl-COA carboxylase
A, B
614Mycobacterium tuberculosis (strain ATCC 25618 / H37Rv)Mutation(s): 0 
Gene Names: accA3
Find proteins for P96890 (Mycobacterium tuberculosis (strain ATCC 25618 / H37Rv))
Go to UniProtKB:  P96890
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.939 Å
  • R-Value Free: 0.220 
  • R-Value Work: 0.189 
  • Space Group: P 21 21 21
Unit Cell:
Length (Å)Angle (°)
a = 77.897α = 90.00
b = 85.206β = 90.00
c = 148.097γ = 90.00
Software Package:
Software NamePurpose
PHASERphasing
PHENIXrefinement
XDSdata reduction
XDSdata scaling

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

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