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FLASH GENE
Symbol RASGRF1 contributors: mct/pgu - updated : 25-10-2016
HGNC name Ras protein-specific guanine nucleotide-releasing factor 1
HGNC id 9875
PROTEIN
PHYSICAL PROPERTIES
STRUCTURE
motifs/domains
  • one N-terminal RAS-GEF domain
  • two pleckstrin (PH) homology domains
  • one DBL-homology (DBH) domain
  • one IQ domain
  • HOMOLOGY
    Homologene
    FAMILY Rho family GTPase-activating protein
    CATEGORY regulatory , signaling neurotransmitter
    SUBCELLULAR LOCALIZATION     plasma membrane
        intracellular
    intracellular,cytoplasm,cytosolic
    text
  • synaptosomal membrane
  • present mainly at synaptosome and its expression after birth increases in parallel with the development of neuronal circuitry
  • basic FUNCTION
  • guanine nucleotide releasing factor, specific for Ras proteins
  • regulating postnatal growth through synthesis or release of growth hormone
  • with ARHGAP5, control pivotal aspects of neural development, including neuronal differentiation and process outgrowth
  • neuron-specific guanine nucleotide exchange factor for the small GTPases RAS and RAC1
  • RASGRF1 and ARHGAP5 function to modulate Rho signaling in response to integrin engagement
  • proper neonatal RASGRF1 expression levels are critical for development
  • central role in governing striatal adaptations to dopamine replacement therapy, validating a viable treatment for L-dopa-induced dyskinesia (LID) based on intracellular signaling modulation
  • RASGRF1 and ARHGAP5 are essential genes that have distinct, but overlapping roles in the developing nervous system
  • its function in both the epithelium and stroma is required for mammary gland development
  • is potentially required in both the epithelial and stromal compartments for ductal outgrowth and may play a role in mammary epithelial cell differentiation
  • plays an important role in alveolar rhabdomyosarcomas pathogenesis
  • RASGRF1 and -GRF2 may act as adaptors that bind PLCG1 and restrict Ca2+ signalling to the vicinity of focal adhesions, indicating a new role for these GRFs that is required for IL1 induction of the RAS&
  • 8594;ERK pathway and MMP3 expression
  • could mediate forms of synaptic plasticity and might participate in the regulation of neuronal excitability and neurite outgrowth though various signal transduction pathway
  • CELLULAR PROCESS
    PHYSIOLOGICAL PROCESS
    PATHWAY
    metabolism
    signaling
    a component
    INTERACTION
    DNA
    RNA
    small molecule
    protein
  • with ARHGAP5, regulates actin stress fiber dynamics via hydrolysis of Rho-GTP
  • microtubule-destabilizing factor STMN3 is a novel RASGRF1-interacting protein (STMN3 influences the signaling properties of RASGRF)
  • CDC42-GDP can inhibit RRAS2 activation by RASGRF1, RASGRF2
  • binds nerve growth factor (NGF)-activated TrkA (NTRK1)
  • can activate both RAS and RAC1, via intrinsic CDC25 and DH domains, respectively
  • RASGRF1/2 associates with PLCG1
  • RASGRF1 is an important upstream component of signal transduction pathways regulating PTTG1 expression and controlling beta cell development and physiological responses
  • PLPPR1 interacts with RasGEF1 (RasGRF1/CDC25), undergoes Ras-induced challenges, whereas deletion of the C-terminal domain of PLPPR1 (PRG3&
  • 916;CT) inhibits RAS
    cell & other
    REGULATION
    Other imprinting is regulated by a CTCF-dependent methylation-sensitive enhancer blocker
    ASSOCIATED DISORDERS
    corresponding disease(s)
    Other morbid association(s)
    TypeGene ModificationChromosome rearrangementProtein expressionProtein Function
    constitutional     --low  
    in temporal lobe epilepsy (TLE)
    Susceptibility
    Variant & Polymorphism
    Candidate gene
    Marker
    Therapy target
    SystemTypeDisorderPubmed
    cancer  
    new potential therapeutic target to inhibit alveolar rhabdomyosarcomas growth
    ANIMAL & CELL MODELS
  • Rasgrf1 expression from the wild-type paternal allele contributes to learning and memory in neonatal mice
  • Rasgrf1-deficient mice were significantly resistant to the development of dyskinesia during chronic L-dopa treatment