5MQH

Structure of the Phosphatase Domain of the Cell Fate Determinant SpoIIE from Bacillus subtilis in a crystal form without domain swapping


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.45 Å
  • R-Value Free: 0.278 
  • R-Value Work: 0.211 

wwPDB Validation 3D Report Full Report


This is version 1.0 of the entry. See complete history

Literature

A widespread family of serine/threonine protein phosphatases shares a common regulatory switch with proteasomal proteases.

Bradshaw, N.Levdikov, V.M.Zimanyi, C.M.Gaudet, R.Wilkinson, A.J.Losick, R.

(2017) Elife 6: --

  • DOI: 10.7554/eLife.26111
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 
  • PP2C phosphatases control biological processes including stress responses, development, and cell division in all kingdoms of life. Diverse regulatory domains adapt PP2C phosphatases to specific functions, but how these domains control phosphatase act ...

    PP2C phosphatases control biological processes including stress responses, development, and cell division in all kingdoms of life. Diverse regulatory domains adapt PP2C phosphatases to specific functions, but how these domains control phosphatase activity was unknown. We present structures representing active and inactive states of the PP2C phosphatase SpoIIE from Bacillus subtilis. Based on structural analyses and genetic and biochemical experiments, we identify an α-helical switch that shifts a carbonyl oxygen into the active site to coordinate a metal cofactor. Our analysis indicates that this switch is widely conserved among PP2C family members, serving as a platform to control phosphatase activity in response to diverse inputs. Remarkably, the switch is shared with proteasomal proteases, which we identify as evolutionary and structural relatives of PP2C phosphatases. Although these proteases use an unrelated catalytic mechanism, rotation of equivalent helices controls protease activity by movement of the equivalent carbonyl oxygen into the active site.


    Related Citations: 
    • Asymmetric division triggers cell-specific gene expression through coupled capture and stabilization of a phosphatase.
      Bradshaw, N.,Losick, R.
      (2015) Elife 4: --
    • Structure of the phosphatase domain of the cell fate determinant SpoIIE from Bacillus subtilis.
      Levdikov, V.M.,Blagova, E.V.,Rawlings, A.E.,Jameson, K.,Tunaley, J.,Hart, D.J.,Barak, I.,Wilkinson, A.J.
      (2012) J. Mol. Biol. 415: 343


    Organizational Affiliation

    Department of Molecular and Cellular Biology, Harvard University, Cambridge, United States.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Serine phosphatase
A
248Bacillus subtilis (strain 168)Mutation(s): 1 
Gene Names: spoIIE (spoIIH)
EC: 3.1.3.16
Find proteins for P37475 (Bacillus subtilis (strain 168))
Go to UniProtKB:  P37475
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.45 Å
  • R-Value Free: 0.278 
  • R-Value Work: 0.211 
  • Space Group: C 2 2 21
Unit Cell:
Length (Å)Angle (°)
a = 56.285α = 90.00
b = 122.506β = 90.00
c = 81.617γ = 90.00
Software Package:
Software NamePurpose
REFMACrefinement
MOLREPphasing
HKL-2000data reduction
HKL-2000data scaling

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History & Funding Information

Deposition Data


Funding OrganizationLocationGrant Number
Wellcome TrustUnited Kingdom082829

Revision History 

  • Version 1.0: 2017-05-31
    Type: Initial release