1KSR

THE REPEATING SEGMENTS OF THE F-ACTIN CROSS-LINKING GELATION FACTOR (ABP-120) HAVE AN IMMUNOGLOBULIN FOLD, NMR, 20 STRUCTURES


Experimental Data Snapshot

  • Method: SOLUTION NMR
  • Conformers Calculated: 45 
  • Conformers Submitted: 20 
  • Selection Criteria: NUMBER (0) OF RESIDUAL CONSTRAINS VIOLATION (THRESHOLDS: 0.45 A FOR NOES AND 10.0 DEGREE FOR ANGLES) 

wwPDB Validation   3D Report Full Report


This is version 1.3 of the entry. See complete history


Literature

The repeating segments of the F-actin cross-linking gelation factor (ABP-120) have an immunoglobulin-like fold.

Fucini, P.Renner, C.Herberhold, C.Noegel, A.A.Holak, T.A.

(1997) Nat Struct Biol 4: 223-230

  • DOI: 10.1038/nsb0397-223
  • Primary Citation of Related Structures:  
    1KSR

  • PubMed Abstract: 
  • The 120,000 M(r) gelation factor and alpha-actinin are among the most abundant F-actin cross-linking proteins in Dictyostelium discoideum. Both molecules are rod-shaped homodimers. Each monomer chain is comprised of an actin-binding domain and a rod domain ...

    The 120,000 M(r) gelation factor and alpha-actinin are among the most abundant F-actin cross-linking proteins in Dictyostelium discoideum. Both molecules are rod-shaped homodimers. Each monomer chain is comprised of an actin-binding domain and a rod domain. The rod domain of the gelation factor consists of six 100-residue repetitive segments with high internal homology. We have now determined the three-dimensional structure of segment 4 of the rod domain of the gelation factor from D. discoideum using NMR spectroscopy. The segment consists of seven beta-sheets arranged in an immunoglobulin-like (Ig) fold. This is completely different from the alpha-actinin rod domain which consists of four spectrin-like alpha-helical segments. The gelation factor is the first example of an Ig-fold found in an actin-binding protein. Two highly homologous actin-binding proteins from human with similar sequences to the gelation factor, filamin and a 280,000 M(r) actin-binding protein (ABP-280), share conserved residues that form the core of the gelation factor repetitive segment structure. Thus, the segment 4 structure should be common to this subfamily of the spectrin superfamily. The structure of segment 4 together with previously published electron microscopy data, provide an explanation for the dimerization of the whole gelation factor molecule.


    Related Citations: 
    • Human Endothelial Actin-Binding Protein (Abp-280, Nonmuscle Filamin): A Molecular Leaf Spring
      Gorlin, J.B., Yamin, R., Egan, S., Stewart, M., Stossel, T.P., Kwiatkowski, D.J., Hartwig, J.H.
      (1990) J Cell Biol 111: 1089
    • The Dictyostelium Gelation Factor Shares a Putative Actin Binding Site with Alpha-Actinins and Dystrophin and Also Has a Rod Domain Containing Six 100-Residue Motifs that Appear to Have a Cross-Beta Conformation
      Noegel, A.A., Rapp, S., Lottspeich, F., Schleicher, M., Stewart, M.
      (1989) J Cell Biol 109: 607
    • Ligand-Induced Changes in the Location of Actin, Myosin, 95K (Alpha-Actinin), and 120K Protein in Amebae of Dictyostelium Discoideum
      Carboni, J.M., Condeelis, J.S.
      (1985) J Cell Biol 100: 1884
    • Properties of the 120,000-and 95,000-Dalton Actin-Binding Proteins from Dictyostelium Discoideum and Their Possible Functions in Assembling the Cytoplasmic Matrix
      Condeelis, J., Vahey, M., Carboni, J.M., Demey, J., Ogihara, S.
      (1984) J Cell Biol 99: 119S

    Organizational Affiliation

    Max Planck Institute for Biochemistry, Martinsried, F.R.G.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
GELATION FACTORA100Dictyostelium discoideumMutation(s): 0 
Gene Names: abpCDDB_G0269100
UniProt
Find proteins for P13466 (Dictyostelium discoideum)
Explore P13466 
Go to UniProtKB:  P13466
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP13466
Protein Feature View
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: SOLUTION NMR
  • Conformers Calculated: 45 
  • Conformers Submitted: 20 
  • Selection Criteria: NUMBER (0) OF RESIDUAL CONSTRAINS VIOLATION (THRESHOLDS: 0.45 A FOR NOES AND 10.0 DEGREE FOR ANGLES) 
  • OLDERADO: 1KSR Olderado

Structure Validation

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Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 1997-08-20
    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: 2022-02-23
    Changes: Database references, Derived calculations, Other