Intein is an intervening polypeptide which can catalytic self-cleavage from a pre-protein accompanied by the concomitant joining of the two flanking polypeptides (the extein) through a peptide bond.
质内含肽是一个
质前体
多肽序列,可以催化
质前体
断裂,使两侧
质外显肽连接成成熟
质。