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The primary structure of macrodontain I, a peptidase from Pseudananas macrodontes fruits, was determined using Edman’s degradation. The enzyme is a non-glycosylated peptidase composed by 213 amino acids with a calculated molecular weight of 23,486.18 Da, pI value 6.99, and a molar extinction coefficient at 280 nm of 61,685 M−1 cm−1. The alignment of the sequence of macrodontain I with those cysteine...
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