[Examination of some peptide fractions left over after isolation of insulin from the pancreas. III. Analytical characterization of products by chromatography and electrophoresis].
The studies of separated and isolated components of Lipotropin-Polfa preparation by determining the contents of nitrogen and qualitative and quantitative composition of amino acids were performed. The component I which constituted 85% of the preparation weight, molecular weight ca. 3500, was separated by means of electrophoresis using polyacrylamide gel, into 3 fractions of polypeptides. The component I proved to have biological activity several times as large as the Lipotropin-Polfa preparation.
Zakład Analizy Leków, Instytut Nauki o Leku, Warszawa.
J
J
Jarzebiński
Z
Z
Szrajber
D000596:Amino Acids / Q000032:analysis; D002845:Chromatography; D004591:Electrophoresis, Polyacrylamide Gel; D008970:Molecular Weight; D008083:beta-Lipotropin / Q000032:analysis*
D000596:Amino Acids; D008083:beta-Lipotropin
Badanie niektórych peptydów wyodrebnionych z pozost ałości po izolowaniu insuliny z trzustki. III. Charakterystyka analityczna produktów chromatografowania i elektroforezy.