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Hereditas(Beijing) ›› 2021, Vol. 43 ›› Issue (9): 816-821.doi: 10.16288/j.yczz.21-326

• Frontier Focus • Previous Articles     Next Articles

Research progress of CTCF in mediating 3D genome formation and regulating gene expression

Cong Zhou(), Qiangwei Zhou, Sheng Cheng, Guoliang Li()   

  1. Agricultural Bioinformatics Key Laboratory of Hubei Province, Hubei Engineering Technology Research Center of Agricultural Big Data, 3D Genomics Research Center, College of Informatics, Huazhong Agricultural University, Wuhan 430070, China
  • Received:2021-09-08 Revised:2021-09-13 Online:2021-09-20 Published:2021-09-15
  • Contact: Li Guoliang E-mail:zhoucong@mail.hzau.edu.cn;guoliang.li@mail.hzau.edu.cn
  • Supported by:
    Supported by the National Natural Science Foundation of China Nos(31970590);Supported by the National Natural Science Foundation of China Nos(31771402)

Abstract:

In interphase eukaryotic nuclei, chromatin is folded to form a higher-order topological structure. The spatial organization of such chromatin domain has an important impact on the regulation of gene expression. As a key architectural structural protein, CTCF (CCCTC-binding factor) plays an important role in the formation of chromatin three-dimensional chromatin structure. CTCF can also bind to many insulator elements in the genome and insulate enhancers from activating target genes via modulating remote chromatin interactions. A recent study by Dr. Chunliang Li and his team at St. Jude Children’s Research Hospital in the United States showed that when CTCF was acutely degraded, significant changes were found in the three-dimensional structure of chromatin. The mechanism by which CTCF binding sites function as insulator elements was investigated by Prof. Qiang Wu’s team at Institute of Systems Biomedicine and Shanghai Jiao Tong University in China and Prof. Bing Ren’s team at Ludwig Institute for Cancer Research in the United States. Here we mainly review and discuss some of these latest progresses.

Key words: CTCF, insulator, three-dimensional genome, regulation of gene expression