Synthetic tocinoic acid, the ring structure of oxytocin (L-Cys-L-Tyr-L-Ile-L-Gln-L-Asn-L-Cys-OH), inhibits MSH release from the rat pituitary in vitro at less than nanogram (10-10 g/ml) levels. A similar inhibitory activity could not be demonstrated on the amphibian (Rana pipiens) pituitary. The synthetic tripeptide side chain of oxytocin (L-Pro-L-Leu-Gly-NH2) was devoid, in vitro, of MSH release inhibition in either the rat or the frog.
|Original language||English (US)|
|Number of pages||7|
|Journal||Biochemical and Biophysical Research Communications|
|State||Published - Dec 3 1971|
ASJC Scopus subject areas
- Molecular Biology
- Cell Biology