Xin Bi of the University of Rochester recently identified boundary elements that recruit acetyl-adding enzymes to histones, ensuring that they stay active.

• 美国罗彻斯特大学的毕鑫最近发现到一些构成边界的组成，它们会徵召乙醯基酵素来到组织蛋白，以确保其活性得以维持。