Chawla Bahaar, Csankovszki Gyӧrgyi
Department of Molecular, Cellular, and Developmental Biology, University of Michigan, Ann Arbor, MI 48109-1085, USA.
DNA (Basel). 2024 Mar;4(1):84-103. doi: 10.3390/dna4010005. Epub 2024 Mar 11.
Chromatin is the complex of DNA and associated proteins found in the nuclei of living organisms. How it is organized is a major research field as it has implications for replication, repair, and gene expression. This review summarizes the current state of the chromatin organization field, with a special focus on chromatin motor complexes cohesin and condensin. Containing the highly conserved SMC proteins, these complexes are responsible for organizing chromatin during cell division. Additionally, research has demonstrated that condensin and cohesin also have important functions during interphase to shape the organization of chromatin and regulate expression of genes. Using the model organism , the authors review the current knowledge of how these complexes perform such diverse roles and what open questions still exist in the field.
染色质是在生物体细胞核中发现的DNA与相关蛋白质的复合物。其组织方式是一个重要的研究领域,因为它对复制、修复和基因表达都有影响。本综述总结了染色质组织领域的当前状态,特别关注染色质运动复合物黏连蛋白和凝聚蛋白。这些复合物包含高度保守的SMC蛋白,负责在细胞分裂期间组织染色质。此外,研究表明凝聚蛋白和黏连蛋白在间期对塑造染色质组织和调节基因表达也具有重要功能。作者利用模式生物,回顾了关于这些复合物如何发挥如此多样作用的现有知识以及该领域仍然存在的未解决问题。