Threonine, isopropyl ester

In a similar manner there occurs the formation of 7-glutamyl peptides by sheep kidney extracts from glutathione and free amino acids. The activity of esters as substrates is shown by methionine isopropyl ester condensing to form methionylmethionine and methionylmethionylmethionine catalyzed by trypsin or by chymotrypsin. A similar condensation has been noted for threonine isopropyl ester. ... 

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