1FSP

NMR SOLUTION STRUCTURE OF BACILLUS SUBTILIS SPO0F PROTEIN, 20 STRUCTURES


Experimental Data Snapshot

  • Method: SOLUTION NMR
  • Conformers Calculated: 60 
  • Conformers Submitted: 20 
  • Selection Criteria: LEAST RESTRAINT VIOLATIONS 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

High-resolution NMR structure and backbone dynamics of the Bacillus subtilis response regulator, Spo0F: implications for phosphorylation and molecular recognition.

Feher, V.A.Zapf, J.W.Hoch, J.A.Whiteley, J.M.McIntosh, L.P.Rance, M.Skelton, N.J.Dahlquist, F.W.Cavanagh, J.

(1997) Biochemistry 36: 10015-10025

  • DOI: 10.1021/bi970816l
  • Primary Citation of Related Structures:  2FSP

  • PubMed Abstract: 
  • NMR has been employed for structural and dynamic studies of the bacterial response regulator, Spo0F. This 124-residue protein is an essential component of the sporulation phosphorelay signal transduction pathway in Bacillus subtilis. Three-dimensiona ...

    NMR has been employed for structural and dynamic studies of the bacterial response regulator, Spo0F. This 124-residue protein is an essential component of the sporulation phosphorelay signal transduction pathway in Bacillus subtilis. Three-dimensional 1H, 15N, and 13C experiments have been used to obtain full side chain assignments and the 1511 distance, 121 dihedral angle, and 80 hydrogen bonding restraints required for generating a family of structures (14 restraints per residue). The structures give a well-defined (alpha/beta)5 fold for residues 4-120 with average rms deviations of 0.59 A for backbone heavy atoms and 1.02 A for all heavy atoms. Analyses of backbone 15N relaxation measurements demonstrate relative rigidity in most regions of regular secondary structure with a generalized order parameter (S2) of 0.9 +/- 0.05 and a rotational correlation time (taum) of 7.0 +/- 0.5 ns. Loop regions near the site of phosphorylation have higher than average rms deviation values and T1/T2 ratios suggesting significant internal motion or chemical exchange at these sites. Additionally, multiple conformers are observed for the beta4-alpha4 loop and beta-strand 5 region. These conformers may be related to structural changes associated with phosphorylation and also indicative of the propensity this recognition surface has for differential protein interactions. Comparison of Spo0F structural features to those of other response regulators reveals subtle differences in the orientations of secondary structure in the putative recognition surfaces and the relative charge distribution of residues surrounding the site of phosphorylation. These may be important in providing specificity for protein-protein interactions and for determining the lifetimes of the phosphorylated state.


    Related Citations: 
    • 1H, 15N, and 13C Backbone Chemical Shift Assignments, Secondary Structure, and Magnesium-Binding Characteristics of the Bacillus Subtilis Response Regulator, Spo0F, Determined by Heteronuclear High-Resolution NMR
      Feher, V.A.,Zapf, J.W.,Hoch, J.A.,Dahlquist, F.W.,Whiteley, J.M.,Cavanagh, J.
      (1995) Protein Sci. 4: 1801


    Organizational Affiliation

    Institute of Molecular Biology and Department of Chemistry, University of Oregon, Eugene, Oregon 97403, USA.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
STAGE 0 SPORULATION PROTEIN F
A
124Bacillus subtilis (strain 168)Gene Names: spo0F
EC: 2.7.-.-
Find proteins for P06628 (Bacillus subtilis (strain 168))
Go to UniProtKB:  P06628
Experimental Data & Validation

Experimental Data

  • Method: SOLUTION NMR
  • Conformers Calculated: 60 
  • Conformers Submitted: 20 
  • Selection Criteria: LEAST RESTRAINT VIOLATIONS 
  • Olderado: 1FSP Olderado
Software Package:
Software NamePurpose
X-PLORrefinement
X-PLORmodel building
X-PLORphasing

Structure Validation

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Entry History 

Deposition Data

Revision History 

  • Version 1.0: 1997-12-10
    Type: Initial release
  • Version 1.1: 2008-03-24
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance