Selected-GenAtlas references SOURCE GeneCards NCBI Gene Swiss-Prot Orphanet Ensembl
HGNC UniGene Nucleotide OMIM UCSC
Home Page
FLASH GENE
Symbol TMPO contributors: mct - updated : 28-09-2016
HGNC name thymopoietin
HGNC id 11875
PROTEIN
PHYSICAL PROPERTIES
STRUCTURE
motifs/domains
  • a N terminal LEM (LAP2, emerin, MAN1) globular domain of 40 AAs, LEM-like domain, which binds DNA
  • HOMOLOGY
    Homologene
    FAMILY LAP2 (lamina-associated protein 2) family
    CATEGORY signaling hormone
    SUBCELLULAR LOCALIZATION     plasma membrane,junction,adherens
        intracellular
    intracellular,cytoplasm,organelle,membrane
    intracellular,cytoplasm,organelle,endoplasmic reticulum
    intracellular,cytoplasm,cytoskeleton,microtubule,mitotic spindle
    intracellular,nucleus,chromatin/chromosome
    intracellular,nuclear envelope,int
    text
  • dynamically associating with chromatin during the cell cycle
  • nuclear periphery proteins LMNA, TMPO and BANF1 relocate to the spindle and the cell cortex in mitosis
  • basic FUNCTION
  • playing an important role, together with LMNA, in the nuclear anchorage of RB1
  • may be involved in the structural organization of the nucleus and in the post-mitotic nuclear assembly
  • playing a role with OIP5 during cell cycle exit, in which OIP5 acts upstream of TMPO
  • serves likely as a transcriptional co-regulator, which controls muscle specific gene expression during muscle regeneration, muscle remodeling and stress response
  • nuclear protein that connects the nuclear lamina with chromatin
  • and nucleoplasmic lamins are regulators of adult stem cell function and tissue homeostas
  • LMNA, TMPO and BANF1 are assembled into a protein complex during mitosis in order to regulate assembly and positioning of the mitotic spindle
  • in addition to its cell cycle-inhibiting function with LMNA, TMPO can also regulate extracellular matrix components independently of LMNA, which may help explain the proliferation-promoting function of TMPO in cells expressing progerin (pMID: 26443848)
  • novel role of nucleoplasmic lamin A/C and TMPO in regulating euchromatin
  • CELLULAR PROCESS
    PHYSIOLOGICAL PROCESS
    PATHWAY
    metabolism
    signaling
    a component
  • TMPO-LMNA complex negatively affects cell proliferation
  • INTERACTION
    DNA
    RNA
    small molecule
    protein
  • hypophosphorylated RB is anchored in the nucleus by the interaction of pocket C with LAP2alpha-LMNA complexes
  • BANF1 and RB1 and with chromosomes
  • TMPO over-expression increased, while additional WNT4 secretion suppressed PPARG expression
  • N-terminal domain of HMGN5 interacts with the C-terminal domain of TMPO and these proteins reciprocally alter their interaction with chromatin
  • localizes throughout the nucleoplasm and interacts with the fraction of LMNA that is not associated with the peripheral nuclear lamina
  • LMNA localizes throughout the nucleus, where it associates with the chromatin-binding protein TMPO
  • cell & other
    REGULATION
    activated by during G1 phase in proliferating cells and upon cell cycle exit in quiescence, senescence and differentiation
    ASSOCIATED DISORDERS
    corresponding disease(s) CMD1T
    Other morbid association(s)
    TypeGene ModificationChromosome rearrangementProtein expressionProtein Function
    constitutional germinal mutation      
    of the LAP2 alpha isoform, in the LMNA binding region, in familial dilated cardiomyopathy
    Susceptibility
    Variant & Polymorphism
    Candidate gene
    Marker
  • LAP2beta may have utility for diagnostics and therapeutics in digestive tract cancers
  • Therapy target
    ANIMAL & CELL MODELS
  • in cardiac tissue, deletion of Tmpo caused systolic dysfunction in young mice with an increased susceptibility for fibrosis in old animals