4F3V

Crystal structure of N-terminal domain of EccA1 ATPase from ESX-1 secretion system of Mycobacterium tuberculosis


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2 Å
  • R-Value Free: 0.211 
  • R-Value Work: 0.174 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Crystal structure of the N-terminal domain of EccA1 ATPase from the ESX-1 secretion system of Mycobacterium tuberculosis.

Wagner, J.M.Evans, T.J.Korotkov, K.V.

(2014) Proteins 82: 159-163

  • DOI: 10.1002/prot.24351

  • PubMed Abstract: 
  • EccA1 is an important component of the type VII secretion system (T7SS) that is responsible for transport of virulence factors in pathogenic mycobacteria. EccA1 has an N-terminal domain of unknown function and a C-terminal AAA+ (ATPases associated wi ...

    EccA1 is an important component of the type VII secretion system (T7SS) that is responsible for transport of virulence factors in pathogenic mycobacteria. EccA1 has an N-terminal domain of unknown function and a C-terminal AAA+ (ATPases associated with various cellular activities) domain. Here we report the crystal structure of the N-terminal domain of EccA1 from Mycobacterium tuberculosis, which shows an arrangement of six tetratricopeptide repeats that may mediate interactions of EccA1 with secreted substrates. Furthermore, the size and shape of the N-terminal domain suggest its orientation in the context of a hexamer model of full-length EccA1.


    Organizational Affiliation

    Department of Molecular and Cellular Biochemistry and Center for Structural Biology, University of Kentucky, Lexington, Kentucky, 40536.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
ESX-1 secretion system protein EccA1
A, B
282Mycobacterium tuberculosis (strain ATCC 25618 / H37Rv)Mutation(s): 0 
Gene Names: eccA1
Find proteins for P9WPH9 (Mycobacterium tuberculosis (strain ATCC 25618 / H37Rv))
Go to UniProtKB:  P9WPH9
Small Molecules
Ligands 2 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
SM
Query on SM

Download SDF File 
Download CCD File 
A, B
SAMARIUM (III) ION
Sm
DOSGOCSVHPUUIA-UHFFFAOYSA-N
 Ligand Interaction
SO4
Query on SO4

Download SDF File 
Download CCD File 
A, B
SULFATE ION
O4 S
QAOWNCQODCNURD-UHFFFAOYSA-L
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2 Å
  • R-Value Free: 0.211 
  • R-Value Work: 0.174 
  • Space Group: P 21 21 21
Unit Cell:
Length (Å)Angle (°)
a = 73.230α = 90.00
b = 92.510β = 90.00
c = 105.710γ = 90.00
Software Package:
Software NamePurpose
PDB_EXTRACTdata extraction
XSCALEdata scaling
REFMACrefinement
SERGUIdata collection

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2012-06-06
    Type: Initial release
  • Version 1.1: 2013-07-10
    Type: Database references
  • Version 1.2: 2013-12-25
    Type: Database references