Gosset Corticotropin-Releasing Hormone Receptor Overview
Corticotropin-releasing hormone receptors (CRHRs) are integral membrane proteins that mediate the effects of corticotropin-releasing hormone (CRH), a key neuropeptide involved in the stress response. There are two main subtypes: CRHR1 and CRHR2. Both belong to the G protein-coupled receptor (GPCR) superfamily and play central roles in regulating the hypothalamic-pituitary-adrenal (HPA) axis, which governs endocrine, behavioral, autonomic, and immune responses to stress.
Mechanism of Action
Ligand binding induces conformational change in the receptor. Typically couples with Gαs proteins → activates adenylyl cyclase → increases cyclic AMP (cAMP). cAMP activates protein kinase A (PKA), leading to phosphorylation events that alter gene expression, hormonal secretion, metabolism.
Biological Functions
Disease Associations
Safety Considerations
No safety concerns listed