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Molecular Basis for Multiple Ligand Binding of Calsequestrin and Potential Inhibition by Caffeine and Gallocatecin
Biology and Chemistry Report
  •   Structure Details   Hide

    Structure Keywords

    Text Thioredoxin fold, CALCIUM BINDING PROTEIN

    Polymeric Molecules

    Chain A
    Description Calsequestrin-1 
    Nonstandard Linkage no 
    Nonstandard Monomers no 
    Polymer Type polypeptide(L) 
    Formula Weight 42468.7 
    Source Method natural source  
    Entity Name Aspartactin, Calsequestrin, skeletal muscle isoform, Laminin-binding protein 

    Ligands and Prosthetic Groups

    ID Name Chemical Formula Weight Ligand Structure
    CA  CALCIUM ION  Ca   40.08  View 
    MPD  (4S)-2-METHYL-2,4-PENTANEDIOL  C6 H14 O2   118.17  View 
    MRD  (4R)-2-METHYLPENTANE-2,4-DIOL  C6 H14 O2   118.17  View 
    NA  SODIUM ION  Na   22.99  View 
    NAG  N-ACETYL-D-GLUCOSAMINE  C8 H15 N O6   221.21  View 
  •   Protein Details   Hide

    UniProtKB Information

    Chain SWS/UNP ID SWS/UNP Accession(s)
    A CASQ1_RABIT P07221     

    C: Cellular Location | F: Molecular Function | P: Biological Process
    Chain A
    GO ID   Ontology GO Term Definition
    14809   Regulation of Skeletal Muscle Contraction by Regulation of Release of Sequestered Calcium Ion  Any Process That Modulates the Frequency Rate or Extent of Skeletal Muscle Contraction Via the Regulation of the Release of Sequestered Calcium Ion by Sarcoplasmic Reticulum Into Cytosol. the Sarcoplasmic Reticulum Is the Endoplasmic Reticulum of Striated Muscle Specialised For the Sequestration of Calcium Ions That Are Released Upon Receipt of a Signal Relayed by the T Tubules From the Neuromuscular Junction. 
    45214   Sarcomere Organization  The Myofibril Assembly Process That Results in the Organization of Muscle Actomyosin Into Sarcomeres. the Sarcomere Is the Repeating Unit of a Myofibril in a Muscle Cell Composed of an Array of Overlapping Thick and Thin Filaments Between Two Adjacent Z Discs. 
    51258   Protein Polymerization  The Process of Creating Protein Polymers Compounds Composed of a Large Number of Component Monomers; Polymeric Proteins May Be Made Up of Different or Identical Monomers. Polymerization Occurs by the Addition of Extra Monomers to an Existing Poly or Oligomeric Protein. 
    5739   Mitochondrion  A Semiautonomous Self Replicating Organelle That Occurs in Varying Numbers Shapes and Sizes in the Cytoplasm of Virtually All Eukaryotic Cells. It Is Notably the Site of Tissue Respiration. 
    5759   Mitochondrial Matrix  The Gel Like Material with Considerable Fine Structure That Lies in the Matrix Space or Lumen of a Mitochondrion. It Contains the Enzymes of the Tricarboxylic Acid Cycle and in Some Organisms the Enzymes Concerned with Fatty Acid Oxidation. 
    16020   Membrane  A Lipid Bilayer Along with All the Proteins and Protein Complexes Embedded in It an Attached to It. 
    16529   Sarcoplasmic Reticulum  A Fine Reticular Network of Membrane Limited Elements That Pervades the Sarcoplasm of a Muscle Cell; Continuous Over Large Portions of the Cell and with the Nuclear Envelope; That Part of the Endoplasmic Reticulum Specialized For Calcium Release Uptake and Storage. 
    33017   Sarcoplasmic Reticulum Membrane  The Lipid Bilayer Surrounding the Sarcoplasmic Reticulum. 
    33018   Sarcoplasmic Reticulum Lumen  The Volume Enclosed by the Membranes of the Sarcoplasmic Reticulum. 
    5509   Calcium Ion Binding  Interacting Selectively and Non Covalently with Calcium Ions (ca2+). 
    46872   Metal Ion Binding  Interacting Selectively and Non Covalently with Any Metal Ion. 

  •   Gene Details   Hide

    Natural Source

    Chain A
    Common Name European Rabbit Japanese White Rabbit Domestic Rabbit Rabbits
    Scientific Name Oryctolagus cuniculus  

    Genome Information

    Chromosome Locus Gene ID Gene Name Symbol
    13 - 100009095     calsequestrin 1 (fast-twitch, skeletal muscle) CASQ1