Researchers realize the tools bacteria use to do this were Cas proteins, nature's genetic scissors.

随后研究人员们了解到这种细菌使用的工具是大自然的遗传剪刀蛋白质。

Then near these CRISPR locations are Cluster associated or Cas proteins, many of which have enzymatic activity.

这些CRISPR位点附近有基因编码成簇相关蛋白，即Cas蛋白，它们许多都有酶活性。

And then the real magic begins when the cas enzymes, or CRISPR-associated proteins, take over.

然后当 cas 酶或 CRISPR 相关蛋白接管时，真正的魔法开始了。

Lady Ingram thought it " le cas" to wring her hands: which she did accordingly.

英格拉姆夫人认为拧紧双手是“​​le cas”：她照做了。

These are the Cas enzymes used in detection systems. Imagine blood from a patient suspected of having Zika.

这些是检测系统中使用的 Cas 酶。想象一下疑似寨卡病毒患者的血液。

The cas enzyme then cuts the viral DNA in two, preventing it from replicating, and therefore, protecting the bacterium.

然后，cas 酶将病毒 DNA 一分为二， 阻止其复制，从而保护细菌。

If CRISPR finds Zika, The Cas enzyme cuts the virus and cuts the molecule holding the reporter, which makes it fluoresce.

如果 CRISPR 发现寨卡病毒，Cas 酶会切割病毒并切割携带报告基因的分子，使其发出荧光。

Sun was suspended by the Court of Arbitration for Sport (Cas) in 2020 for refusing to provide samples for testers who had visited his home.

2020 年，孙杨因拒绝向到访其家的检测人员提供样本而被国际体育仲裁法庭禁赛。

Dr Zhang and Dr Sternberg have now demonstrated programmable CRISPR-Cas gene-editing systems that do just this by harnessing a protein encoded by a jumping gene known as Tn7.

张博士和Sternberg博士现已表明可编辑CRISPR-Cas基因编辑系统通过利用一种被称为Tn7的跳跃基因编码的蛋白质来做到这一点。