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FLASH GENE
Symbol PITRM1 contributors: mct - updated : 06-06-2019
HGNC name pitrilysin metalloproteinase 1
HGNC id 17663
PROTEIN
PHYSICAL PROPERTIES
STRUCTURE
motifs/domains
HOMOLOGY
interspecies homolog to murine Pfkp
Homologene
FAMILY
  • metalloendoprotease superfamily
  • pitrilysin family
  • CATEGORY enzyme
    SUBCELLULAR LOCALIZATION     intracellular
    intracellular,cytoplasm,organelle,mitochondria,matrix
    text
  • localized in the mitochondrial matrix in mammalian mitochondria and is the novel mitochondrial APP-degrading enzyme
  • basic FUNCTION
  • is deemed responsible for digesting the mitochondrial targeting sequence (MTS) of proteins imported across the inner mitochondrial membrane
  • genetic variation in PITRM1 may potentially contribute to mitochondrial dysfunctions
  • zinc metalloendopeptidase that has been implicated in Alzheimer disease and mitochondrial peptide degradation
  • is responsible for the degradation of presequences and other unstructured peptides including the amyloid-beta peptide, whose accumulation may have deleterious effects on mitochondrial function
  • mitochondrial matrix enzyme, which digests oligopeptides, including the mitochondrial targeting sequences that are cleaved from proteins imported across the inner mitochondrial membrane and the mitochondrial fraction of amyloid beta (APP)
  • CELLULAR PROCESS
    PHYSIOLOGICAL PROCESS
    PATHWAY
    metabolism
    signaling
    a component
    INTERACTION
    DNA
    RNA
    small molecule cofactor,
    Mg2+
    protein
  • PITRM1 regulates intermediate FXN levels
  • is responsible for significant APP degradation and impairment of its activity results in APP accumulation
  • mitochondrial matrix enzyme, which digests oligopeptides, including the mitochondrial targeting sequences that are cleaved from proteins imported across the inner mitochondrial membrane and the mitochondrial fraction of amyloid beta (APP)
  • cell & other
    REGULATION
    activated by ADP/AMP or fructose biphosphate
    inhibited by ATP or citrate
    ASSOCIATED DISORDERS
    corresponding disease(s) SCAMRP
    Other morbid association(s)
    TypeGene ModificationChromosome rearrangementProtein expressionProtein Function
    constitutional     --low  
    in brains of Alzheimer disease
    Susceptibility
    Variant & Polymorphism
    Candidate gene
    Marker
    Therapy target
    ANIMAL & CELL MODELS
  • hemizygous Pitrm1 +/- mouse displays slowly progressive, multisystem neurological impairment
  • Pitrm1 is regulated by hedgehog signaling in the developing mouse limb and is expressed in muscle progenitors