Skip to main content
U.S. Department of Energy
Office of Scientific and Technical Information

Radioimmunoassay of Pro-. gamma. -melanotropin, the amino-terminal fragment of proopiolipomelanocortin. [Swine]

Journal Article · · Endocrinology; (United States)
OSTI ID:6783680
A RIA has been developed for natural porcine pro-..gamma..-MSH, the 103-amino acid peptide that represents the amino-terminal part of proopiolipomelanocortin. Rabbits were immunized with the purified peptide polymerized with glutaraldehyde. The antiserum is directed against the amino-terminial end of the antigen and does not cross-react with corticotropin, ..beta..-lipotropin, ..beta..-endorphin, ..gamma../sub 3/MSH, or ..gamma../sub 2/MSH. The minimum detectable concentration is 0.15 ng/ml standard pro-..gamma..MSH (15 pg/tube). Pro-..gamma..MSH-like immunoreactivity was detected in plasma and extracts of the hypothalamus and pituitary of pigs. Gel chromatography of these extracts revealed at least three immunoreactive peaks in the anterior and neurointermediate lobes of the pituitary, wheras two immunoreactive peaks were found in extracts of the hypothalalmus. (Endocrinology 111:578,1982)
Research Organization:
Univ. of Lund, Sweden
OSTI ID:
6783680
Journal Information:
Endocrinology; (United States), Journal Name: Endocrinology; (United States) Vol. 111:2; ISSN ENDOA
Country of Publication:
United States
Language:
English