Pure Human Big Gastrin IMMUNOCHEMICAL PROPERTIES, DISAPPEARANCE HALF TIME, AND ACID-STIMULATING ACTION IN DOGS

AUTOR(ES)

Walsh, John H.

RESUMO

Biological properties of pure natural human “big gastrin” (designated G-34 because it contains 34 amino acid residues) were compared with those of pure natural heptadecapeptide gastrins (G-17) from human and porcine sources. Radioimmunoassay inhibition curves indicated that G-17 was nearly 1.5 times more potent than G-34 with the antibody used in this study. This difference was confirmed by demonstration of increased immunoreactivity generated when G-34 was converted to G-17 by trypsinization.

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