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FLASH GENE
Symbol FLRT3 contributors: mct - updated : 04-10-2022
HGNC name fibronectin leucine rich transmembrane protein 3
HGNC id 3762
EXPRESSION
Type widely
   expressed in (based on citations)
organ(s)
SystemOrgan level 1Organ level 2Organ level 3Organ level 4LevelPubmedSpeciesStageRna symbol
Cardiovascularheart    
Endocrineparathyroid   highly
Hearing/Equilibriumear   highly
Nervousbrainbasal nuclei   
 brainhindbraincerebellum  
 brainlimbic systemhippocampus  
Urinarykidney    
tissue
SystemTissueTissue level 1Tissue level 2LevelPubmedSpeciesStageRna symbol
Muscularstriatumskeletal  
cell lineage
cell lines
fluid/secretion
at STAGE
physiological period embryo, pregnancy
Text
  • placenta
  • widely expressed in the developing embryo, particularly highly expressed initially in the midbrain, and later expressed in the developing pharyngeal region
  • PROTEIN
    PHYSICAL PROPERTIES
    STRUCTURE
    motifs/domains
  • ten leucine rich repeats flanked by N and C terminal cysteine rich regions
  • two fibronectin-collagen-like domains
  • a transmembrane segment (TM1) and an intracellular tail
  • conjugated GlycoP
    HOMOLOGY
    intraspecies homolog to ECM small leucine-rich proteoglycans
    paralog to FLRT1
    paralog to FLRT2
    Homologene
    FAMILY
  • fibronectin leucine rich transmembrane protein (FLRT) family
  • CATEGORY adhesion , receptor membrane
    SUBCELLULAR LOCALIZATION extracellular
        plasma membrane
        intracellular
    intracellular,cytoplasm,cytosolic
    text type I membrane protein
    basic FUNCTION
  • functioning in cell adhesion and/or receptor signaling
  • may contribute to regeneration following axonal injury
  • putative cell surface receptor implicated in both the development of the nervous system and in the regeneration of the peripheral nervous system (PNS)
  • FLRT1, FLRT2, FLRT3 have a dual role, promoting FGF signalling and modulating homotypic cell adhesion
  • FLRT proteins act potentially as regulators of FGF signalling, being induced by the signal and then able to interact with the signalling receptor, in many tissues
  • important roles for FLRT2 and FLRT3 in mediating events such as neural crest cell migration, chondrogenesis and epithelial-mesenchymal interactions during craniofacial development
  • having dual properties as regulators of cell adhesion and potentiators of fibroblast growth factor (FGF) mediated signalling
  • FLRT2 or FLRT3 are potentially required in the epicardium to promote heart morphogenesis
  • axon guidance-related factor connected to the regulation of neuronal cell outgrowth and morphogenesis
  • bifunctional role of FLRT3 in repulsive vs. adhesive cell signaling has been already detected during embryogenesis and neuronal growth, and depends on its interactions either with UNC5B or another FLRT3 expressed by adjacent cells
  • is a modulator of neurite outgrowth, axon pathfinding, and cell adhesion, which is upregulated in the dorsal horn following peripheral nerve injury
  • FLRT2, FLRT3 are required for the proper distribution of interneurons within the cortical migratory streams and for the final laminar allocation in the postnatal cortex
  • neuropathic pain induction is a novel function of FLRT3
  • CELLULAR PROCESS
    PHYSIOLOGICAL PROCESS
    PATHWAY
    metabolism vitamin
    signaling signal transduction
    a component
  • constituent of extracellular membrane
  • PCDH8 and FLRT3 form a functional complex with cadherins
  • INTERACTION
    DNA
    RNA
    small molecule
    protein
  • interacting with PCDH8 (functions as a molecular "governor" to maintain FLRT3 activity at the optimal level for physiological regulation of C-cadherin adhesion, cell sorting, and morphogenesis)
  • UNC5B was recently shown to bind FLRT3
  • BMP signal can down-regulate FGF pathway via inhibition of FLRT3 expression for anterior neural formation
  • UNC5A, UNC5B, UNC5C, UNC5D and ADGRL3 can simultaneously bind to FLRT3, forming a trimeric complex, and FLRT3 may form transsynaptic complexes with both ADGRL3 and UNC5
  • ADGRL3 regulate excitatory synapse number through trans interactions with fibronectin leucine-rich repeat transmembrane 3 (FLRT3)
  • TBX2, which is a target gene of BMP signal, down-regulates FGF8 signaling by inhibiting the expression of FLRT3, a positive regulator of this pathway
  • cell & other
    REGULATION
    ASSOCIATED DISORDERS
    corresponding disease(s) HH21
    Susceptibility to congenital Hypogonadotropic Hypogonadism
    Variant & Polymorphism
    Candidate gene
    Marker
    Therapy target
    ANIMAL & CELL MODELS