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

    Stanford Synchrotron Radiation Lightsource, SLAC National Accelerator Laboratory, Menlo Park, California, United States of America; Joint Center for Structural Genomics, United States of America.,Department of Developmental Biology, Stanford University School of Medicine, Stanford, California, United States of America.,Stanford Synchrotron Radiation Lightsource, SLAC National Accelerator Laboratory, Menlo Park, 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