Atrial myocytes cultured for 7 days in serum-free medium secrete a 15K form of atrial natriuretic peptide (15K ANP), but isolated perfused rat hearts secrete the major circulating form of the hormone, a 3K peptide, 3K ANP. This difference was …
Binding sites for 125I-atrial natriuretic peptide (ANP)2 in rat olfactory bulb membranes have been studied using pharmacological and biochemical methods. Various unlabeled ANP-related peptides were tested for the ability to inhibit the binding of the …
Atrial natriuretic peptides (ANP) have recently been identified in both heart and CNS. These peptides possess potent natriuretic, diuretic, and vasorelaxant activities, and are all apparently derived from a single prohormone. Specific ANP binding …
Previous studies have shown that cultured rat intermediate pituitary lobe cells lose the ability to form ACTH-(1-13)NH2-related molecules (alpha MSH) and instead produce ACTH-(1-14)-related peptides. In vitro studies have shown that peptidylglycine …
Acid extracts of rat anterior uvea and retina contain immunoactive atrial natriuretic peptide. Gel filtration chromatography demonstrates that the major forms of the uveal and retinal material have approximate molecular weights of 2400 and 1750 …
Primary cultures of atrial myocytes were prepared from newborn rats and maintained for 8 days in complete serum-free medium. The culture content of immunoactive atrial natriuretic peptide (ANP) increased from 10 to 25 ng/culture during this time. The …
In previous studies we have demonstrated a secretory granule-associated peptide alpha-amidation activity in rat anterior, intermediate, and posterior pituitary. This activity is capable of converting 125I-labeled synthetic D-Tyr-Val-Gly to labeled …
ACTH(1-8) and ACTH(9-13)NH2 were used as potential enzyme inhibitors to begin examining the relationship between the acetylation of ACTH- and beta-endorphin-related peptides. ACTH(1-8) was a potent inhibitor of the acetylation of both ACTH- and …
Acid extracts of rat hypothalamus and atrium were prepared by a procedure previously shown to minimize proteolytic degradation of peptides. The majority of the immunoactive material in the atrial extracts had a molecular weight of approximately 9,000 …
Rat intermediate pituitary cells in primary culture display a time-dependent loss of the ability to produce COOH-terminally alpha-amidated alpha MSH (Glembotski, C.C., Eipper, B.A., and Mains, R.E. (1983) J. Biol. Chem. 258, 7299-7304). Instead of …