2FSP

NMR SOLUTION STRUCTURE OF BACILLUS SUBTILIS SPO0F PROTEIN, MINIMIZED AVERAGE STRUCTURE


Experimental Data Snapshot

  • Method: SOLUTION NMR
  • Conformers Calculated: 60 
  • Conformers Submitted: 
  • Selection Criteria: MINIMIZED MEAN OF 20 LOWEST VIOLATION ENERGY STRUCTURES 

wwPDB Validation   3D Report Full Report

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This is version 1.4 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: https://doi.org/10.1021/bi970816l
  • Primary Citation of Related Structures:  
    1FSP, 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-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.


  • Organizational Affiliation

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


Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
STAGE 0 SPORULATION PROTEIN F124Bacillus subtilisMutation(s): 0 
Gene Names: SPO0F
EC: 2.7
UniProt
Find proteins for P06628 (Bacillus subtilis (strain 168))
Explore P06628 
Go to UniProtKB:  P06628
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP06628
Sequence Annotations
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: SOLUTION NMR
  • Conformers Calculated: 60 
  • Conformers Submitted: 
  • Selection Criteria: MINIMIZED MEAN OF 20 LOWEST VIOLATION ENERGY STRUCTURES 

Structure Validation

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Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 1997-12-10
    Type: Initial release
  • Version 1.1: 2008-03-24
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Version format compliance
  • Version 1.3: 2022-03-09
    Changes: Database references, Derived calculations, Other
  • Version 1.4: 2024-05-29
    Changes: Data collection