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14 天
一种 CPC-shelterin-BTR 轴调控有丝分裂端粒去保护机制的发现
表达 hTRF2-2A 或 hTRF2-2D 的细胞中,t-loop 结构减少,这说明 TRF2 基本结构域的修饰会影响 t-loop 结构,促进其打开,进而导致端粒线性化和 DDR 激活。 研究人员还证实 BTR 活性对 MAD 端粒去保护至关重要。通过敲低 BLM 并表达其突变体,研究发现 BLM 的解旋酶活性和与 ...
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