6IEO

Crystal structure of Mycobacterium tuberculosis HtrA1 (Rv1223) in regulated conformation


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.83 Å
  • R-Value Free: 0.227 
  • R-Value Work: 0.191 

wwPDB Validation 3D Report Full Report


This is version 1.0 of the entry. See complete history

Literature

The crystal structure of Mycobacterium tuberculosis high-temperature requirement A protein reveals an autoregulatory mechanism.

Gupta, A.K.Behera, D.Gopal, B.

(2018) Acta Crystallogr F Struct Biol Commun 74: 803-809

  • DOI: 10.1107/S2053230X18016217

  • PubMed Abstract: 
  • The crystal structure of Mycobacterium tuberculosis high-temperature requirement A (HtrA) protein was determined at 1.83 Å resolution. This membrane-associated protease is essential for the survival of M. tuberculosis. The crystal structure reveals t ...

    The crystal structure of Mycobacterium tuberculosis high-temperature requirement A (HtrA) protein was determined at 1.83 Å resolution. This membrane-associated protease is essential for the survival of M. tuberculosis. The crystal structure reveals that interactions between the PDZ domain and the catalytic domain in HtrA lead to an inactive conformation. This finding is consistent with its proposed role as a regulatory protease that is conditionally activated upon appropriate environmental triggers. The structure provides a basis for directed studies to evaluate the role of this essential protein and the regulatory pathways that are influenced by this protease.


    Organizational Affiliation

    Molecular Biophysics Unit, Indian Institute of Science, C. V. Raman Road, Bangalore 560 012, India.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Probable serine protease HtrA (DEGP protein)
A
314Mycobacterium tuberculosis (strain ATCC 25618 / H37Rv)Mutation(s): 0 
Gene Names: htrA
Find proteins for O06291 (Mycobacterium tuberculosis (strain ATCC 25618 / H37Rv))
Go to UniProtKB:  O06291
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
PMS
Query on PMS

Download SDF File 
Download CCD File 
A
phenylmethanesulfonic acid
C7 H8 O3 S
NIXKBAZVOQAHGC-UHFFFAOYSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.83 Å
  • R-Value Free: 0.227 
  • R-Value Work: 0.191 
  • Space Group: H 3
Unit Cell:
Length (Å)Angle (°)
a = 107.114α = 90.00
b = 107.114β = 90.00
c = 61.529γ = 120.00
Software Package:
Software NamePurpose
PHASERphasing
Aimlessdata scaling
XDSdata reduction
REFMACrefinement
PDB_EXTRACTdata extraction

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

  • Deposited Date: 2018-09-14 
  • Released Date: 2018-12-19 
  • Deposition Author(s): Gupta, A.K., Gopal, B.

Revision History 

  • Version 1.0: 2018-12-19
    Type: Initial release