1H8B

EF-hands 3,4 from alpha-actinin / Z-repeat 7 from titin


Experimental Data Snapshot

  • Method: SOLUTION NMR
  • Conformers Calculated: 50 
  • Conformers Submitted: 30 
  • Selection Criteria: LOWEST ENERGIES 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Ca2+-Independent Binding of an EF-Hand Domain to a Novel Motif in the Alpha-Actinin-Titin Complex

Atkinson, R.A.Joseph, C.Kelly, G.Muskett, F.W.Frenkiel, T.A.Nietlispach, D.Pastore, A.

(2001) Nat.Struct.Mol.Biol. 8: 853

  • DOI: 10.1038/nsb1001-853

  • PubMed Abstract: 
  • The interaction between alpha-actinin and titin, two modular muscle proteins, is essential for sarcomere assembly. We have solved the solution structure of a complex between the calcium-insensitive C-terminal EF-hand domain of alpha-actinin-2 and the ...

    The interaction between alpha-actinin and titin, two modular muscle proteins, is essential for sarcomere assembly. We have solved the solution structure of a complex between the calcium-insensitive C-terminal EF-hand domain of alpha-actinin-2 and the seventh Z-repeat of titin. The structure of the complex is in a semi-open conformation and closely resembles that of myosin light chains in their complexes with heavy chain IQ motifs. However, no IQ motif is present in the Z-repeat, suggesting that the semi-open conformation is a general structural solution for calcium-independent recognition of EF-hand domains.


    Related Citations: 
    • The Binding of Alpha-Actinin to Titin: Implications for Z-Disk Assembly
      Atkinson, R.A.,Joseph, C.,Piaz, F.D.,Birolo, L.,Stier, G.,Pucci, P.,Pastore, A.
      (2000) Biochemistry 39: 5255


    Organizational Affiliation

    Division of Molecular Structure, National Institute for Medical Research, The Ridgeway, Mill Hill, London, NW7 1AA UK.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
ALPHA-ACTININ 2, SKELETAL MUSCLE ISOFORM
A
75Homo sapiensGene Names: ACTN2
Find proteins for P35609 (Homo sapiens)
Go to Gene View: ACTN2
Go to UniProtKB:  P35609
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
TITIN
B
53Oryctolagus cuniculusGene Names: titin
Find proteins for O97791 (Oryctolagus cuniculus)
Go to UniProtKB:  O97791
Experimental Data & Validation

Experimental Data

  • Method: SOLUTION NMR
  • Conformers Calculated: 50 
  • Conformers Submitted: 30 
  • Selection Criteria: LOWEST ENERGIES 
  • Olderado: 1H8B Olderado

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2001-08-30
    Type: Initial release
  • Version 1.1: 2011-05-08
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance