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一次过瘾,你想要的ATAC这里都有
由于 Tn5 转座酶优先攻击染色质开放区,酶切片段的长度分布可以反映ATAC-seq实验中Tn5酶用量是否合适。单个核小体是由146bp的DNA缠绕在组蛋白上构成的,适量的Tn5酶只会切割裸露的DNA,而不会切割被核小体保护的DNA,因此正常实验,酶切片段长度分布图中会出现2 ...
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