2YKF

Sensor region of a sensor histidine kinase


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2 Å
  • R-Value Free: 0.240 
  • R-Value Work: 0.188 

wwPDB Validation 3D Report Full Report


This is version 1.3 of the entry. See complete history

Literature

The Sensor Region of the Ubiquitous Cytosolic Sensor Kinase, Pdtas, Contains Pas and Gaf Domain Sensing Modules.

Preu, J.Panjikar, S.Morth, P.Jaiswal, R.Karunakar, P.Tucker, P.A.

(2012) J.Struct.Biol. 177: 498

  • DOI: 10.1016/j.jsb.2011.11.012
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 
  • Two-component systems, a sensor histidine kinase (HK) and a response regulator (RR), are ubiquitous signaling systems that allow prokaryotes to respond to external challenges. HKs normally have sensing modules and highly conserved cytosolic histidine ...

    Two-component systems, a sensor histidine kinase (HK) and a response regulator (RR), are ubiquitous signaling systems that allow prokaryotes to respond to external challenges. HKs normally have sensing modules and highly conserved cytosolic histidine kinase and ATPase domains. The interaction between the activated phosphohistidine and the cognate RR allows an external signal to be passed from the exterior of gram-positive bacteria (GPB) to the cytoplasm. Orthologs of the PdtaS/PdtaR regulatory system, found in most GPB phyla, are unusual in two respects. The HK is not membrane anchored, and the RR acts at the level of transcriptional antitermination. The structure of the complete sensor region of the cytosolic HK, PdtaS, from Mycobacterium tuberculosis consists of closely linked GAF and PAS domains. The structure and sequence analysis suggest that the PdtaS/PdtaR regulatory system is structurally equivalent to the EutW/EutV system regulating ethanolamine catabolism in some phyla but that the effector for the PAS domain is not ethanolamine in the Actinobacteria.


    Organizational Affiliation

    EMBL Hamburg Outstation, c/o DESY, Notkestrasse 85, D22603 Hamburg, Germany.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
PROBABLE SENSOR HISTIDINE KINASE PDTAS
A
305Mycobacterium tuberculosis (strain ATCC 25618 / H37Rv)Mutation(s): 0 
Gene Names: pdtaS
EC: 2.7.13.3
Find proteins for P9WGL5 (Mycobacterium tuberculosis (strain ATCC 25618 / H37Rv))
Go to UniProtKB:  P9WGL5
Small Molecules
Ligands 2 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
SO4
Query on SO4

Download SDF File 
Download CCD File 
A
SULFATE ION
O4 S
QAOWNCQODCNURD-UHFFFAOYSA-L
 Ligand Interaction
BR
Query on BR

Download SDF File 
Download CCD File 
A
BROMIDE ION
Br
CPELXLSAUQHCOX-UHFFFAOYSA-M
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2 Å
  • R-Value Free: 0.240 
  • R-Value Work: 0.188 
  • Space Group: C 2 2 21
Unit Cell:
Length (Å)Angle (°)
a = 73.590α = 90.00
b = 81.270β = 90.00
c = 105.060γ = 90.00
Software Package:
Software NamePurpose
XSCALEdata scaling
DENZOdata reduction
Auto-Rickshawphasing
XDSdata reduction
SCALEPACKdata scaling
REFMACrefinement

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: 2012-06-27
    Type: Other
  • Version 1.2: 2015-09-23
    Type: Data collection, Other
  • Version 1.3: 2019-07-17
    Type: Data collection