4Q20

Crystal structure of a C-terminal part of tyrosine kinase (DivL) from Caulobacter crescentus CB15 at 2.50 A resolution (PSI Community Target, Shapiro)


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.50 Å
  • R-Value Free: 0.232 
  • R-Value Work: 0.202 
  • R-Value Observed: 0.203 

wwPDB Validation   3D Report Full Report


This is version 1.2 of the entry. See complete history


Literature

Cell fate regulation governed by a repurposed bacterial histidine kinase.

Childers, W.S.Xu, Q.Mann, T.H.Mathews, I.I.Blair, J.A.Deacon, A.M.Shapiro, L.

(2014) PLoS Biol 12: e1001979-e1001979

  • DOI: 10.1371/journal.pbio.1001979
  • Primary Citation of Related Structures:  
    4Q20

  • PubMed Abstract: 
  • One of the simplest organisms to divide asymmetrically is the bacterium Caulobacter crescentus. The DivL pseudo-histidine kinase, positioned at one cell pole, regulates cell-fate by controlling the activation of the global transcription factor CtrA via an interaction with the response regulator (RR) DivK ...

    One of the simplest organisms to divide asymmetrically is the bacterium Caulobacter crescentus. The DivL pseudo-histidine kinase, positioned at one cell pole, regulates cell-fate by controlling the activation of the global transcription factor CtrA via an interaction with the response regulator (RR) DivK. DivL uniquely contains a tyrosine at the histidine phosphorylation site, and can achieve these regulatory functions in vivo without kinase activity. Determination of the DivL crystal structure and biochemical analysis of wild-type and site-specific DivL mutants revealed that the DivL PAS domains regulate binding specificity for DivK∼P over DivK, which is modulated by an allosteric intramolecular interaction between adjacent domains. We discovered that DivL's catalytic domains have been repurposed as a phosphospecific RR input sensor, thereby reversing the flow of information observed in conventional histidine kinase (HK)-RR systems and coupling a complex network of signaling proteins for cell-fate regulation.


    Organizational Affiliation

    Department of Developmental Biology, Stanford University School of Medicine, Stanford, California, United States of America.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Sensor protein DivLA, B268Caulobacter vibrioides CB15Mutation(s): 0 
Gene Names: divLCC_3484
EC: 2.7.13.3
UniProt
Find proteins for Q9RQQ9 (Caulobacter vibrioides (strain ATCC 19089 / CB15))
Explore Q9RQQ9 
Go to UniProtKB:  Q9RQQ9
Protein Feature View
Expand
  • Reference Sequence
Experimental Data & Validation

Experimental Data

Unit Cell:
Length ( Å )Angle ( ˚ )
a = 69.53α = 90
b = 69.53β = 90
c = 194.42γ = 120
Software Package:
Software NamePurpose
MolProbitymodel building
PDB_EXTRACTdata extraction
SHELXphasing
SHARPphasing
XSCALEdata scaling
BUSTER-TNTrefinement
XDSdata reduction
SHELXDphasing
BUSTERrefinement

Structure Validation

View Full Validation Report




Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2014-04-23
    Type: Initial release
  • Version 1.1: 2015-03-18
    Changes: Database references
  • Version 1.2: 2017-11-22
    Changes: Refinement description