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Pure Human Big Gastrin IMMUNOCHEMICAL PROPERTIES, DISAPPEARANCE HALF TIME, AND ACID-STIMULATING ACTION IN DOGS
John H. Walsh, … , Haile T. Debas, Morton I. Grossman
John H. Walsh, … , Haile T. Debas, Morton I. Grossman
Published August 1, 1974
Citation Information: J Clin Invest. 1974;54(2):477-485. https://doi.org/10.1172/JCI107783.
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Research Article

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

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Abstract

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.

Authors

John H. Walsh, Haile T. Debas, Morton I. Grossman

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