5UCG

Structure of the PP2C Phosphatase Domain and a Fragment of the Regulatory Domain of the Cell Fate Determinant SpoIIE from Bacillus Subtilis


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.906 Å
  • R-Value Free: 0.323 
  • R-Value Work: 0.276 

wwPDB Validation 3D Report Full Report


This is version 1.1 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.


    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
Stage II sporulation protein E
A, E, B, C, D
345Bacillus subtilis (strain 168)Mutation(s): 0 
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

Unit Cell:
Length (Å)Angle (°)
a = 125.622α = 90.00
b = 125.622β = 90.00
c = 330.696γ = 90.00
Software Package:
Software NamePurpose
HKL-2000data reduction
HKL-2000data scaling
PHENIXphasing
PHENIXrefinement
PDB_EXTRACTdata extraction
DENZOdata reduction
SCALEPACKdata scaling

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History & Funding Information

Deposition Data


Funding OrganizationLocationGrant Number
National Institutes of Health/National Institute of General Medical SciencesUnited StatesGM18568
Wellcome TrustUnited Kingdom082829
Damon Runyon Cancer Research FoundationUnited StatesDRG 2051-10
Jane Coffin Childs Memorial Fund for Medical ResearchUnited StatesJCC Fund

Revision History 

  • Version 1.0: 2017-05-31
    Type: Initial release
  • Version 1.1: 2017-09-20
    Type: Author supporting evidence, Refinement description