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Comp Biochem Physiol B ; 95(3): 477-82, 1990.
Article in English | MEDLINE | ID: mdl-2184990

ABSTRACT

1. Insulins have been isolated from islet tissue of pink (Oncorhynchus gorbuscha) and chum (Oncorhynchus keta) salmon. The primary structure of chum and pink salmon insulins was found to be identical. Compared to the amino acid sequence of human insulin, the salmon insulins under study differed at 14 positions. 2. Biological activity of pink salmon insulin was 83% of that of standard porcine insulin. 3. The immunological properties of fish insulins were investigated in specific radioimmunoassay (RIA) systems, based on porcine and pink salmon insulins. 4. A significant difference in the antigenic determinants of these fish and mammalian hormones was revealed.


Subject(s)
Insulin , Salmon/metabolism , Amino Acid Sequence , Animals , Chromatography, Ion Exchange , Crystallization , Female , Insulin/immunology , Insulin/isolation & purification , Insulin/physiology , Male , Molecular Sequence Data , Radioimmunoassay
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