nucleosomes造句

• The nucleosomes are coiled into a solenoid structure .
  核小体可以卷曲成螺线管的结构。
• As rna polymerase ii leaves a gene promotor to transcribe the coding region , it faces many obstacles , including nucleosomes
  当rnap离开基因的启动子转录编码区时，遇到包括核小体在内的多种障碍。
• Yet despite this effort , there has yet to emerge a unifying mechanism by which nucleosomes are remodeled during gene regulation
  然而，现在还未能给出一个较为统一的机制来解释在基因调控过程中核小体如何发生重构。
• Dna wraps around histones in left - handed way and forms nucleosome structure . many nucleosomes are linked together like " prayer beads "
  Dna分子以左手的方式缠绕在组蛋白分子上，形成核小体结构，多个核小体象“念珠”一样串联。
• The last seven years have spawned a vast amount of data on the enzymes that remodel and modify nucleosomes and the rules governing how transcription factors interact with the epigenetic code on histones
  在过去的7年中，科学研究提供了大量的有关以下两个方面的数据： （ 1 ）具有重构和修饰核小体功能的酶，以及（ 2 ）转录因子如何同组蛋白上的表观遗传编码相互作用的机制。
• Epigenetic modification of the genome ensures proper gene activation during development and involves : genome methylation changes ; the assembly of histon and histone variants into nucleosomes and remodeling of other chromatin - associated proteins such as linker histones , polycomb group , nuclear scaffold protein , and transcription factors
  这些染色质的再程序化包括dna的甲基化和核小体组蛋白的乙酰化等。组蛋白乙酰化在染色质结构调节、 dna复制、基因转录、细胞分化及癌细胞发育都有研究，但在克隆动物中却是一个有待深入探索的领域。