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FLASH GENE
Symbol TRIM63 contributors: mct - updated : 25-10-2013
HGNC name tripartite motif-containing 63
HGNC id 16007
PROTEIN
PHYSICAL PROPERTIES
STRUCTURE
motifs/domains
  • a ring finger motif in the N-terminus
  • a zing-binding type-2 B-box motif
  • a coiled-coil dimerization motif box in the central region (RBCQ) tripartite motif (TRIM)
  • a COS (C-terminal subgroup one signature) domain
  • conjugated MetalloP
    mono polymer homomer , heteromer , oligo
    HOMOLOGY
    interspecies homolog to rattus Trim63 (91.1 pc)
    homolog to murine Trim63 (92.6 pc)
    Homologene
    FAMILY
  • C-II TRIM family
  • C3HC4 RING finger subfamily
  • MURF subfamily
  • RBCC family
  • CATEGORY enzyme , regulatory , DNA associated
    SUBCELLULAR LOCALIZATION     intracellular
    intracellular,cytoplasm,cytoskeleton,microtubule
    intracellular,nucleus,chromatin/chromosome
    text Z line and M line lattices of myofibrils
    basic FUNCTION
  • sarcomere-associated protein, involved in the cell cycle regulatory process of striated muscle cells
  • playing a role in striated muscle cell embryonic development
  • may coordinately regulate the energy metabolism of mitochondrial and cytoplasmic compartments
  • acting as an E3 ubiquitin ligase (Ozato 2008)
  • regulating proteasomal degradation of cardiac troponin I/TNNI3 and probably of other sarcomeric-associated proteins
  • may regulate the organization of myofibrils through TTN in muscle cells
  • involved in regulating muscle trophic homeostasis through interactions with a number of proteins including glycogen phosphorylase and FOXO (Forkhead box, subgroup O)
  • plays an important role in regulating cardiac size through alterations in protein turnover and that MuRF1 is not required to induce cardiac atrophy
  • muscle RING finger protein which is involved in muscle wasting
  • is involved in disuse-induced bone loss in both of the two major bone remodeling activities, osteoblastic bone formation and osteoclastic bone resorption
  • is responsible for mediating muscle atrophy that occurs during the period of active lung injury in humans, and skeletal muscle dysfunction persists despite resolution of lung injury
  • FBXO32 and TRIM63 are two E3 ubiquitin ligases that are important regulators of ubiquitin-mediated protein degradation in skeletal muscle
  • maintains muscle protein homeostasis by tagging the sarcomere proteins with ubiquitin for subsequent degradation by the ubiquitin-proteasome system (UPS)
  • CELLULAR PROCESS cell cycle
    protein, ubiquitin dependent proteolysis
    PHYSIOLOGICAL PROCESS development
    PATHWAY
    metabolism
    signaling signal transduction
    a component
    INTERACTION
    DNA binding
    RNA
    small molecule metal binding,
  • Zn2+
  • protein
  • interacting with SUMO2, titin/TTN and GMEB1
  • interacting with TRIM54 and probably with TRIM55 and TNNI3
  • forming a ternary complex with GNB2L1 and PRKCE
  • binding to titin repeats, near the titin kinase domain, important for the stability of M-line region and thick filament structure
  • binding to ubiquitin (UBC9) conjugating enzyme 9 and isopeptidase
  • binding with glucocorticoid modulatory element binding protein-1 (GMEB1) suggesting that RNF28 may link myofibril signaling pathways and influences muscle gene expression
  • interacting with TNNI1, and TNNI2 (targeted for ubiquitylation and proteasome-depoendent degradation)
  • indirectly reduces MYBPC3 levels by regulating the transcription of myosin heavy chains (
  • FOXO3 and SMAD3, converge to coordinately and directly regulate transcription of TRIM63
  • cell & other
    REGULATION
    induced by FOXO1
    FOXO3
    Other developmentally regulated
    ASSOCIATED DISORDERS
    corresponding disease(s) CMH15
    Susceptibility
    Variant & Polymorphism
    Candidate gene
    Marker
    Therapy target
    SystemTypeDisorderPubmed
    cardiovascular  
    inhibition of TRIM63 could be a novel mechanism to prevent or reverse muscle wasting associated with various pathologies
    ANIMAL & CELL MODELS
  • murf1 knock out mice (Bodine 2001)
  • the increase in cardiac size in MuRF1 KO mice was related to a decrease in proteasome activity and an increase in Akt signaling relative to WT mice