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자료유형
학술저널
저자정보
Kim Taekyung (Pusan National University)
저널정보
한국유전학회 Genes & Genomics Genes & Genomics Vol.44 No.3
발행연도
2022.3
수록면
317 - 325 (9page)
DOI
10.1007/s13258-021-01193-x

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Background The centromere is the special region on a chromosome, which serves as the site for assembly of kinetochore complex and is essential for maintaining genomic integrity. Neocentromeres are new centromeres that form on the non-centromeric regions of the chromosome when the natural centromere is disrupted or inactivated. Although neocentromeres lack the typical features found in centromeres, cells with neocentromeres divide normally during mitosis and meiosis. Neocentromeres not only arise naturally but their formation can also be induced experimentally. Therefore, neocentromeres are a great tool for studying functions and formation of centromeres. Objective To study neocentromeres and use that knowledge to gain insights into the epigenetic regulation of canonical centromeres. Discussion Here, we review the characteristics of naturally occurring centromeres and neocentromeres and those of experimentally induced neocentromeres. We also discuss the mechanism of centromere formation and epigenetic regulation of centromere function, which we learned from studying the neocentromeres. Although neocentromeres lack main features of centromeres, such as presence of repetitive ?-satellite DNA and pericentric heterochromatin, they behave quite similar to the canonical centromere, indicating the epigenetic nature of the centromere. Still, further investigation will help to understand the formation and maintenance of the centromere, and the correlation to human diseases. Conclusion Neocentromeres helped us to understand the formation of canonical centromeres. Also, since neocentromeres are associated with certain cancer types, knowledge about them could be helpful to treat cancer.

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