通常附着在核酸酶上的锌指，称作ZFNs，它负责切断dna的两条链。

Zinc fingers are usually attached to enzymes called nucleases, dubbed ZFNs, which cut both strands of DNA.

youdao

这种物质一般从小牛的胃中采集而来，里面含有的多种酶能够切断牛奶中的一种蛋白——酪蛋白的水溶性末端。

Then they add a substance usually harvested from veal stomachs called rennet, a mixture of enzymes that slice the ends off caseins, a kind of milk protein.

youdao

这是一系列尤其容易被基质金属蛋白酶切断的氨基酸(蛋白质的基石)序列。

This is a sequence of amino acids (the building blocks of proteins) that is particularly vulnerable to the cutting action of MMPs.

youdao