flanking

a flanking attack from the north-east.

从东北方向发起一次侧。

massive walls, defended by four flanking towers.

厚城墙，四侧各有一座塔楼防护。

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.

蛋白质内含是一个蛋白质前体中序列，可以催化自身从蛋白质前体中断裂，使两侧蛋白质外显连接成成熟蛋白质。