Entry
Name
GnRH signaling pathway - Salmo salar (Atlantic salmon)
Description
Gonadotropin-releasing hormone (GnRH) secretion from the hypothalamus acts upon its receptor in the anterior pituitary to regulate the production and release of the gonadotropins, LH and FSH. The GnRHR is coupled to Gq/11 proteins to activate phospholipase C which transmits its signal to diacylglycerol (DAG) and inositol 1,4,5-trisphosphate (IP3). DAG activates the intracellular protein kinase C (PKC) pathway and IP3 stimulates release of intracellular calcium. In addition to the classical Gq/11, coupling of Gs is occasionally observed in a cell-specific fashion. Signaling downstream of protein kinase C (PKC) leads to transactivation of the epidermal growth factor (EGF) receptor and activation of mitogen-activated protein kinases (MAPKs), including extracellular-signal-regulated kinase (ERK), Jun N-terminal kinase (JNK) and p38 MAPK. Active MAPKs translocate to the nucleus, resulting in activation of transcription factors and rapid induction of early genes.
Class
Organismal Systems; Endocrine system
BRITE hierarchy
Pathway map
Ortholog table
Organism
Salmo salar (Atlantic salmon) [GN:
sasa ]
Gene
106561195 gnrhr4; gonadotropin-releasing hormone II receptor-like [KO:K04280 ]
106566693 guanine nucleotide-binding protein G(s) subunit alpha-like [KO:K04632 ]
100195072 atf4; Cyclic AMP-dependent transcription factor ATF-4 [KO:K04374 ]
106562028 guanine nucleotide-binding protein G(q) subunit alpha-like [KO:K04634 ]
106568348 guanine nucleotide-binding protein G(q) subunit alpha-like [KO:K04634 ]
106580086 guanine nucleotide-binding protein G(q) subunit alpha-like [KO:K04634 ]
106585689 guanine nucleotide-binding protein G(q) subunit alpha [KO:K04634 ]
106584406 guanine nucleotide-binding protein subunit alpha-11-like [KO:K04635 ]
106574495 guanine nucleotide-binding protein subunit alpha-11-like [KO:K04635 ]
106575390 guanine nucleotide-binding protein subunit alpha-11-like [KO:K04635 ]
106566685 voltage-dependent L-type calcium channel subunit alpha-1D-like [KO:K04851 ]
106571974 voltage-dependent L-type calcium channel subunit alpha-1D-like [KO:K04851 ]
106583449 voltage-dependent L-type calcium channel subunit alpha-1D-like [KO:K04851 ]
106565299 voltage-dependent L-type calcium channel subunit alpha-1D-like [KO:K04851 ]
106572493 voltage-dependent L-type calcium channel subunit alpha-1D-like [KO:K04853 ]
106567031 dihydropyridine-sensitive L-type skeletal muscle calcium channel subunit alpha-1-like [KO:K04857 ]
106583479 dihydropyridine-sensitive L-type skeletal muscle calcium channel subunit alpha-1-like [KO:K04857 ]
106565294 dihydropyridine-sensitive L-type skeletal muscle calcium channel subunit alpha-1-like [KO:K04857 ]
106600411 jun; Jun proto-oncogene, AP-1 transcription factor subunit [KO:K04448 ]
100136440 glha2; pituitary alpha-2 glycoprotein hormone subunit precursor [KO:K08522 ]
106601599 sos2; SOS Ras/Rho guanine nucleotide exchange factor 2 [KO:K03099 ]
Compound
C01245 D-myo-Inositol 1,4,5-trisphosphate
Reference
Authors
Ruf F, Sealfon SC.
Title
Genomics view of gonadotrope signaling circuits.
Journal
Reference
Authors
Harrison GS, Wierman ME, Nett TM, Glode LM.
Title
Gonadotropin-releasing hormone and its receptor in normal and malignant cells.
Journal
Reference
Authors
Pawson AJ, McNeilly AS.
Title
The pituitary effects of GnRH.
Journal
Reference
Authors
DeGroot LJ, Jameson JL (ed).
Title
Endocrinology (Fifth edition)
Journal
Elsevier Saunders (2006)
Reference
Authors
Naor Z, Benard O, Seger R.
Title
Activation of MAPK cascades by G-protein-coupled receptors: the case of gonadotropin-releasing hormone receptor.
Journal
Reference
Authors
Ruf F, Fink MY, Sealfon SC.
Title
Structure of the GnRH receptor-stimulated signaling network: insights from genomics.
Journal
Reference
Authors
Farshori PQ, Shah BH, Arora KK, Martinez-Fuentes A, Catt KJ.
Title
Activation and nuclear translocation of PKCdelta, Pyk2 and ERK1/2 by gonadotropin releasing hormone in HEK293 cells.
Journal
Reference
Authors
Shah BH, Catt KJ.
Title
Matrix metalloproteinases in reproductive endocrinology.
Journal
Reference
Authors
Roelle S, Grosse R, Aigner A, Krell HW, Czubayko F, Gudermann T.
Title
Matrix metalloproteinases 2 and 9 mediate epidermal growth factor receptor transactivation by gonadotropin-releasing hormone.
Journal
Reference
Authors
Naor Z
Title
Signaling by G-protein-coupled receptor (GPCR): studies on the GnRH receptor.
Journal
Related pathway
sasa04060 Cytokine-cytokine receptor interaction
sasa04080 Neuroactive ligand-receptor interaction
KO pathway
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