1IXM

CRYSTAL STRUCTURE OF SPOOB FROM BACILLUS SUBTILIS


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.60 Å
  • R-Value Free: 0.314 
  • R-Value Work: 0.217 

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This is version 1.2 of the entry. See complete history


Literature

Formation of a novel four-helix bundle and molecular recognition sites by dimerization of a response regulator phosphotransferase.

Varughese, K.I.MadhusudanZhou, X.Z.Whiteley, J.M.Hoch, J.A.

(1998) Mol Cell 2: 485-493

  • DOI: 10.1016/s1097-2765(00)80148-3
  • Primary Citation of Related Structures:  
    1IXM

  • PubMed Abstract: 
  • A basis for understanding specificity of molecular recognition between phosphorelay proteins has been deduced from the 2.6 A structure of the Spo0B phosphotransferase of the phosphorelay regulating sporulation initiation. Spo0B consists of two domains: an N-terminal alpha-helical hairpin domain and a C-terminal alpha/beta domain ...

    A basis for understanding specificity of molecular recognition between phosphorelay proteins has been deduced from the 2.6 A structure of the Spo0B phosphotransferase of the phosphorelay regulating sporulation initiation. Spo0B consists of two domains: an N-terminal alpha-helical hairpin domain and a C-terminal alpha/beta domain. Two subunits of Spo0B dimerize by a parallel association of helical hairpins to form a novel four-helix bundle from which the active histidine protrudes. Docking studies show that both the monomers interact with a Spo0F molecule at the region surrounding the active site aspartate to position it for phosphotransfer. It is apparent that different surfaces of response regulators may be involved in recognition of the protein partners to which they are paired.


    Organizational Affiliation

    Department of Molecular and Experimental Medicine, Scripps Research Institute, La Jolla, California 92037, USA. kiv@scripps.edu



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
PROTEIN (SPORULATION RESPONSE REGULATORY PROTEIN)A, B192Bacillus subtilisMutation(s): 0 
Gene Names: spo0B
EC: 2.7
Find proteins for P06535 (Bacillus subtilis (strain 168))
Explore P06535 
Go to UniProtKB:  P06535
Protein Feature View
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.60 Å
  • R-Value Free: 0.314 
  • R-Value Work: 0.217 
  • Space Group: P 21 21 21
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 44.4α = 90
b = 94.4β = 90
c = 109.7γ = 90
Software Package:
Software NamePurpose
PHASESphasing
X-PLORrefinement
DENZOdata reduction
SCALEPACKdata scaling

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

  • Deposited Date: 1998-11-06 
  • Released Date: 1998-11-25 
  • Deposition Author(s): Varughese, K.I.

Revision History  (Full details and data files)

  • Version 1.0: 1998-11-25
    Type: Initial release
  • Version 1.1: 2008-04-26
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Version format compliance