The crystal structure of an AHNAK peptide in complex with the S100A10/AnxA2 heterotetramer
Biology and Chemistry Report
  •   Structure Details   Hide

    Structure Keywords

    Text Membrane repair, scaffold, AHNAK, Annexin A2, S100A10, calcium binding, inner-membrane surface, CALCIUM BINDING PROTEIN-PROTEIN BINDING complex, CALCIUM-BINDING PROTEIN-PROTEIN BINDING complex

    Polymeric Molecules

    Chain A,B
    Description Protein S100-A10 
    Nonstandard Linkage no 
    Nonstandard Monomers no 
    Polymer Type polypeptide(L) 
    Formula Weight 11089.0 
    Source Method genetically manipulated  
    Entity Name Calpactin I light chain, Calpactin-1 light chain, Cellular ligand of annexin II, S100 calcium-binding protein A10, p10 protein, p11 
    Chain C,D
    Description Annexin A2 
    Fragment Annexin A2 N-terminal peptide (UNP residues 2-16) 
    Mutation C9S 
    Nonstandard Linkage no 
    Nonstandard Monomers yes 
    Polymer Type polypeptide(L) 
    Formula Weight 1653.9 
    Source Method synthetic  
    Entity Name Annexin II, Annexin-2, Calpactin I heavy chain, Calpactin-1 heavy chain, Chromobindin-8, Lipocortin II, Placental anticoagulant protein IV, PAP-IV, Protein I, p36 
    Chain E
    Description Neuroblast differentiation-associated protein AHNAK 
    Fragment AHNAK peptide (UNP residues 5654-5673) 
    Nonstandard Linkage no 
    Nonstandard Monomers yes 
    Polymer Type polypeptide(L) 
    Formula Weight 2340.9 
    Source Method synthetic  
    Entity Name Desmoyokin 

    Ligands and Prosthetic Groups

    ID Name Chemical Formula Weight Ligand Structure
    IPA  ISOPROPYL ALCOHOL  C3 H8 O   60.10  View 
  •   Protein Details   Hide

    UniProtKB Information

    Chain SWS/UNP ID SWS/UNP Accession(s)
    A,B S10AA_HUMAN A8K4V8     
    C,D ANXA2_HUMAN P07355     
    E AHNK_HUMAN A1A586     

    Keywords and Names

    Chain(s) RCSB Name UniProtKB Name UniProtKB Keywords

    C: Cellular Location | F: Molecular Function | P: Biological Process
    Chain A,B
    GO ID   Ontology GO Term Definition
    5515   Protein Binding  Interacting Selectively and Non Covalently with Any Protein or Protein Complex (a Complex of Two or More Proteins That May Include Other Nonprotein Molecules). 
    44325   Ion Channel Binding  Interacting Selectively and Non Covalently with One or More Specific Sites On an Ion Channel a Protein Complex That Spans a Membrane and Forms a Water Filled Channel Across the Phospholipid Bilayer Allowing Selective Ion Transport Down Its Electrochemical Gradient. 

  •   Gene Details   Hide

    Genetic Source

    Chain A,B
    Common Name Human
    Scientific Name Homo sapiens  
    Gene anx2lg, cal1l, clp11, s100a10
    Host Scientific Name Escherichia coli  
    Host Strain Bl21(de3)
    Host Vector Type Plasmid

    Genome Information

    Chromosome Locus Gene ID Gene Name Symbol
    1 1q21 6281     S100 calcium binding protein A10 S100A10    
    11 11q12.2 79026     AHNAK nucleoprotein AHNAK    
    15 15q22.2 302     annexin A2 ANXA2    

    Single Nucleotide Polymorphisms (from LS-SNP database)

    SNP ID LsSnp Link dbSNP Link Chain PDB position Amino acid changes Secondary structure Solvent Accessibility Chromosome Chromosome position Ligand
    rs148864594 LS-SNP   dbSNP   A 6 H - > Q Helix 46% (Exposed) 1 151958686
    rs146701614 LS-SNP   dbSNP   A 17 K - > R Helix 71% (Exposed) 1 151958654
    rs142923959 LS-SNP   dbSNP   A 59 D - > E Coil 15% (Intermediate) 1 151955753
    rs11542012 LS-SNP   dbSNP   A 76 A - > V Helix 0% (Buried) 1 151955703
    rs202176957 LS-SNP   dbSNP   C 3 T - > I Helix 27% (Intermediate) 15 60678267