Biswas Aditi, Basu Aakash
Department of Biosciences, Durham University, Durham, UK.
Department of Biosciences, Durham University, Durham, UK.
Curr Opin Struct Biol. 2023 Dec;83:102698. doi: 10.1016/j.sbi.2023.102698. Epub 2023 Sep 9.
The local mechanical properties of DNA depend on local sequence. Here we review recent genomic, structural, and computational efforts at deciphering the "mechanical code", i.e., the mapping between sequence and mechanics. We then discuss works that suggest how evolution has exploited the mechanical code to control the energetics of DNA-deforming biological processes such as nucleosome organization, transcription factor binding, DNA supercoiling, gene regulation, and 3D chromatin organization. As a whole, these recent works suggest that DNA sequence in diverse organisms can encode regulatory information governing diverse processes via the mechanical code.
DNA的局部力学性质取决于局部序列。在此,我们综述了近期在破译“力学密码”,即序列与力学之间的映射关系方面所做的基因组学、结构学和计算方面的研究工作。然后,我们讨论了一些研究成果,这些成果表明进化是如何利用力学密码来控制DNA变形生物过程(如核小体组装、转录因子结合、DNA超螺旋、基因调控和三维染色质组织)的能量学的。总体而言,这些近期的研究工作表明,不同生物体中的DNA序列可以通过力学密码编码控制各种过程的调控信息。