Semi-synthesis of human insulin
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United States of America Patent
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Aug 30, 1983
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N/A
app pub date -
Dec 31, 1981
filing date -
Apr 13, 1979
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Expired
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Abstract
A process for preparing B30-threonine-insulin which comprising reacting a des-B30-insulin with an excess amount of threonine derivative in the presence of an enzyme specifically acting on a lysine carbonyl in peptide bondings and produced by Achromobacter lyticus M 497-1.
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