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FLASH GENE
Symbol MYO1E contributors: mct - updated : 26-08-2015
HGNC name myosin IE
HGNC id 7599
PROTEIN
PHYSICAL PROPERTIES
STRUCTURE
motifs/domains
  • an N terminal motor domain containing ATP and actin-binding sites
  • a neck containing one IQ calmodulin or calmodulin-like light chain binding domain
  • an SH3 domain of MYO1E tail interacting with TJP1, a component of the slit diaphragm complex and tight junctions, suggesting that MYO1E represents a component of the slit diaphragm complex and may contribute to regulating junctional integrity in kidney podocytes
  • two Tail Homology domains, TH2 domain providing the key signal for localization to invadosomes, while TH1 domain interactions facilitate MYO1E targeting to the plasma membrane-proximal locations within the rosettes
  • C-terminal tail domain includes a basic region required for localization to clathrin-coated vesicles and contains a putative pleckstrin-homology (PH) domain that has been shown to play a role in phospholipid binding in other myosin-I proteins
  • mono polymer complex
    HOMOLOGY
    interspecies homolog to rattus Myo1e (95.8 pc)
    homolog to murine Myo1e (96.2 pc)
    Homologene
    FAMILY
  • subclass-1 member of the myosin-I family
  • CATEGORY motor/contractile
    SUBCELLULAR LOCALIZATION     plasma membrane,junction
        intracellular
    intracellular,cytoplasm,cytoskeleton,microfilament
    text
  • co-localizes with clathrin- and dynamin-containing puncta at the plasma membrane and this co-localization requires an intact SH3 domain
  • basic FUNCTION
  • acting as a microfilament motor
  • involved in rapid sliding
  • may contribute to receptor-mediated endocytosis
  • potentially playing an important role in cortical granule exocytosis
  • may be playing an important role in podocyte function and normal glomerular filtration
  • anchored by lipid interactions, could concentrate MYO1E-binding proteins, such as dynamin and synaptojanin-1, at actin-rich regions of the membrane
  • coordinates actin assembly and cargo trafficking during clathrin-mediated endocytosis
  • actin-dependent molecular motor that plays an important role in kidney functions
  • its expression in podocytes is necessary for normal glomerular filtration and podocyte defects are likely to represent the primary pathway leading to glomerular disease associated with MYO1E mutations
  • actin-based motor protein that has been implicated in cell adhesion and migration
  • may then act as a scaffold, linking the plasma membrane with the actin cytoskeleton and helping direct new invadosome formation to the periphery of the rosette
  • non-redundant function of the motor protein MYO1E in the regulation of TLR4-controlled, cytoskeleton-associated functional properties of macrophages and dendritic cells, and in induction of a full MHC-II-restricted adaptive immune response
  • CELLULAR PROCESS
    PHYSIOLOGICAL PROCESS
    PATHWAY
    metabolism
    signaling
    a component
  • myosin complex
  • INTERACTION
    DNA
    RNA
    small molecule nucleotide,
  • ATP
  • protein
  • acting
  • calmodulin
  • interact with proteins involved in endocytosis and actin dynamics, including dynamin, synaptojanin, and LRRC16A, presumably via MYO1E SH3 domain
  • interaction with anionic phospholipids
  • binds lipids through nonspecific electrostatic interactions rather than a stereospecific protein-phosphoinositide interaction
  • cell & other
    REGULATION
    ASSOCIATED DISORDERS
    corresponding disease(s) FSGS6
    Other morbid association(s)
    TypeGene ModificationChromosome rearrangementProtein expressionProtein Function
    constitutional       loss of function
    promotes podocyte injury and results in the loss of the integrity of the glomerular filtration barrier
    Susceptibility
    Variant & Polymorphism
    Candidate gene
    Marker
    Therapy target
    ANIMAL & CELL MODELS
    renal tissue from Myo1e-null mice demonstrates changes characteristic of glomerular disease, including a thickened and disorganized glomerular basement membrane and flattened podocyte foot processes