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FLASH GENE
Symbol LHCGR contributors: mct/npt - updated : 15-06-2017
HGNC name luteinizing hormone/choriogonadotropin receptor
HGNC id 6585
PROTEIN
PHYSICAL PROPERTIES
STRUCTURE
motifs/domains
  • a large N terminal extracellular domain containing nine leucine-rich repeat motifs
  • a stretch of five amino acids Ala (A)-Phe (F)-Asn (N)-Gly (G)-Thr (T), highly conserved in glycoprotein hormone receptors
  • a C terminal half homolog of the rhodopsin-like receptors
  • conjugated GlycoP , PhosphoP
    HOMOLOGY
    interspecies ortholog to murine Lhcgr
    homolog to Drosophila Fsh
    homolog to C.elegans C50H2.1
    Homologene
    FAMILY
  • G-protein coupled receptor 1 family
  • FSH/LSH/TSH subfamily
  • CATEGORY receptor membrane G
    SUBCELLULAR LOCALIZATION     plasma membrane
        intracellular
    intracellular,cytoplasm,organelle,membrane
    intracellular,cytoplasm,organelle,endoplasmic reticulum
    intracellular,cytoplasm,organelle,endosome
    intracellular,cytoplasm,organelle,lysosome
    basic FUNCTION
  • acting as luteinizing hormone/choriogonadotropin receptor (gonadotropin receptor)
  • regulating in males the devopment and function of Leyding cells
  • playing a role in male secondary sexual character development
  • is a G(s)-coupled GPCR that is essential for the maturation and function of the ovary and testis
  • CELLULAR PROCESS
    PHYSIOLOGICAL PROCESS development
    text development of Leyding cells
    PATHWAY
    metabolism
    signaling hormonal
    a component
  • inactive mutant attenuates signaling of wild-type or constitutively active receptors via heterodimerization (Zhang 2009)
  • coexpression of the LHCGR and FSHR enables heterodimerizaton between the 2 gonadotropin receptors and results in an attenuation of signaling through each receptor
  • INTERACTION
    DNA
    RNA
    small molecule
    protein
  • MVK binds to the coding region of LHCGR mRNA, suppresses its translation, and the resulting ribonucleoprotein complex is targeted for degradation
  • ARF6 activated by the LHCGR through the cytohesin family of guanine nucleotide exchange factors mediates the receptor internalization and signaling
  • LHCGR signaling in regulating the AHR message involves protein kinase A pathway and is attributable to decreased transcription rate
  • lack of the physiological down regulation of LHCGR mRNA levels by ZFP36L2 in the ovaries is associated with anovulation and oocyte meiotic arrest
  • by inhibiting EIF5A hypusination, FSH reduces the expression of MVK that increases LHCGR mRNA expression by abrogating the inhibitory action of MVK
  • cell & other
    REGULATION
    ASSOCIATED DISORDERS
    corresponding disease(s) PHLCH , PPML
    Other morbid association(s)
    TypeGene ModificationChromosome rearrangementProtein expressionProtein Function
    constitutional germinal mutation      
    secondary amenorrhea in females belonging to pedigrees of male patients with Leydig hypoplasia
    constitutional     --over  
    in granulosa cells (GC) from polycystic ovarian syndrome (PCOS) women
    constitutional germinal mutation      
    in empty follicle syndrome (EFS) in a family
    Susceptibility to endometrioid adenocarcinoma
    Variant & Polymorphism SNP
  • rs13405728 in gene LHCGR are associated with endometrioid adenocarcinoma
  • Candidate gene
    Marker
    Therapy target
    ANIMAL & CELL MODELS