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The action characteristic of a hormone, any substance formed in very small amounts in one specialized organ or group of cells and carried (sometimes in the bloodstream) to another organ or group of cells in the same organism, upon which it has a specific regulatory action. The term was originally applied to agents with a stimulatory physiological action in vertebrate animals (as opposed to a chalone, which has a depressant action). Usage is now extended to regulatory compounds in lower animals and plants, and to synthetic substances having comparable effects; all bind receptors and trigger some biological process. Interacting selectively and non-covalently with one or more specific sites on a receptor molecule, a macromolecule that undergoes combination with a hormone, neurotransmitter, drug or intracellular messenger to initiate a change in cell function. The action characteristic of melanocyte stimulating hormone, any of three peptide hormones that are produced by the intermediate lobe of the pituitary gland and, upon receptor binding, cause dispersal of melanosomes in melanophores of poikilothermic vertebrates.

View Gene Ontology (GO) Term

GO TERM SUMMARY
Name: melanocyte stimulating hormone activity
Acc: GO:0017044
Aspect: Molecular Function
Desc: The action characteristic of melanocyte stimulating hormone, any of three peptide hormones that are produced by the intermediate lobe of the pituitary gland and, upon receptor binding, cause dispersal of melanosomes in melanophores of poikilothermic vertebrates.
Synonyms:
  • alpha-melanophore stimulating hormone activity
  • alpha-melanocyte stimulating hormone activity
Proteins in PDR annotated with:
   This term: 0
   Term or descendants: 0


[geneontology.org]
INTERACTIVE GO GRAPH

GO:0017044 - melanocyte stimulating hormone activity (interactive image map)
YRC Informatics Platform - Version 3.0
Created and Maintained by: Michael Riffle