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端粒 (telom ere)是位于染色体 3′末端的一段富含 G的 DNA序列 ,它和端粒结合蛋白组成核蛋白复合物 ,具有防止染色体末端降解、融合而起到保护染色体完整性、维持细胞稳定性的作用。端粒酶 (telomerase)则是一种由端粒酶RNA和蛋白质组成的核糖蛋白体酶 ,能利用自身 RNA为模板
Telomere is a G-rich DNA sequence located at the 3 ’end of the chromosome. It forms a nuclear protein complex with telomere binding protein, which has the function of preventing the end of chromosome from degrading and fusing to protect the integrity of chromosome and maintain the cell The role of stability. Telomerase is a ribosomal protein enzyme consisting of telomerase RNA and protein that uses its own RNA as a template