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: 2.5 Å
  • R-Value Free: 0.232 
  • R-Value Work: 0.202 

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

  • 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 v ...

    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: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Sensor protein DivL
A, B
268Caulobacter vibrioides (strain ATCC 19089 / CB15)Mutation(s): 0 
Gene Names: divL
EC: 2.7.13.3
Find proteins for Q9RQQ9 (Caulobacter vibrioides (strain ATCC 19089 / CB15))
Go to UniProtKB:  Q9RQQ9
Experimental Data & Validation

Experimental Data

Unit Cell:
Length (Å)Angle (°)
a = 69.530α = 90.00
b = 69.530β = 90.00
c = 194.420γ = 120.00
Software Package:
Software NamePurpose
BUSTER-TNTrefinement
SHELXDphasing
MolProbitymodel building
BUSTERrefinement
SHELXphasing
XSCALEdata scaling
PDB_EXTRACTdata extraction
SHARPphasing
XDSdata reduction

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

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