2HET

Non-myristoylated bovine recoverin (truncated at C-terminus) with calcium bound to EF-hand 3


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.00 Å
  • R-Value Free: 0.259 
  • R-Value Work: 0.237 
  • R-Value Observed: 0.238 

Starting Model: experimental
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wwPDB Validation   3D Report Full Report


This is version 1.3 of the entry. See complete history


Literature

Tuning of a neuronal calcium sensor.

Weiergraber, O.H.Senin, I.I.Zernii, E.Y.Churumova, V.A.Kovaleva, N.A.Nazipova, A.A.Permyakov, S.E.Permyakov, E.A.Philippov, P.P.Granzin, J.Koch, K.W.

(2006) J Biol Chem 281: 37594-37602

  • DOI: https://doi.org/10.1074/jbc.M603700200
  • Primary Citation of Related Structures:  
    2HET

  • PubMed Abstract: 

    Recoverin is a Ca(2+)-regulated signal transduction modulator expressed in the vertebrate retina that has been implicated in visual adaptation. An intriguing feature of recoverin is a cluster of charged residues at its C terminus, the functional significance of which is largely unclear. To elucidate the impact of this segment on recoverin structure and function, we have investigated a mutant lacking the C-terminal 12 amino acids. Whereas in myristoylated recoverin the truncation causes an overall decrease in Ca(2+) sensitivity, results for the non-myristoylated mutant indicate that the truncation primarily affects the high affinity EF-hand 3. The three-dimensional structure of the mutant has been determined by x-ray crystallography. In addition to significant changes in average coordinates compared with wild-type recoverin, the structure provides strong indication of increased conformational flexibility, particularly in the C-terminal domain. Based on these observations, we propose a novel role of the C-terminal segment of recoverin as an internal modulator of Ca(2+) sensitivity.


  • Organizational Affiliation

    Institut für Biologische Informationsverarbeitung (IBI-2, Biologische Strukturforschung), Forschungszentrum Jülich GmbH, D-52425 Jülich, Germany.


Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
Recoverin
A, B, C, D
189Bos taurusMutation(s): 0 
Gene Names: RCV1
UniProt
Find proteins for P21457 (Bos taurus)
Explore P21457 
Go to UniProtKB:  P21457
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP21457
Sequence Annotations
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.00 Å
  • R-Value Free: 0.259 
  • R-Value Work: 0.237 
  • R-Value Observed: 0.238 
  • Space Group: P 1 21 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 70.889α = 90
b = 70.759β = 99.01
c = 85.925γ = 90
Software Package:
Software NamePurpose
MOLREPphasing
CNSrefinement

Structure Validation

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Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2006-10-17
    Type: Initial release
  • Version 1.1: 2008-05-01
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Derived calculations, Version format compliance
  • Version 1.3: 2023-08-30
    Changes: Data collection, Database references, Derived calculations, Refinement description