High-resolution N(6) -methyladenosine (m(6) A) map using photo-crosslinking-assisted m(6) A sequencing.

High-resolution N(6) -methyladenosine (m(6) A) map using photo-crosslinking-assisted m(6) A sequencing.
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DOI:
10.1002/anie.201410647
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发表时间:
2015-01-26
影响因子:
16.6
通讯作者:
He, Chuan
He, Chuan
中科院分区:
化学1区
文献类型:
--
作者:
Chen, Kai;Lu, Zhike;Wang, Xiao;Fu, Ye;Luo, Guan-Zheng;Liu, Nian;Han, Dali;Dominissini, Dan;Dai, Qing;Pan, Tao;He, Chuan

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N6-甲基腺苷(m6 A)是真核生物mRNA中一种丰富的内部修饰,在mRNA代谢中起着重要的调节作用。然而,精确定位m6 A修饰的方法仍然有限。我们在这里提出了一种光交联辅助m6 A测序策略(PA-m6 A-seq),以更准确地定义m6 A修饰位点。使用这种策略,我们获得了人类转录组中m6 A的高分辨率图谱。该地图类似于以前观察到的一般分布模式,并在基本分辨率下显示了新的m6 A站点。我们的研究结果提供了深入了解甲基化区域和RNA结合蛋白的结合位点之间的关系。
N6-methyladenosine (m6A) is an abundant internal modification in eukaryotic mRNA and plays regulatory roles in mRNA metabolism. However, methods to precisely locate the m6A modification remain limited. We present here a photo-crosslinking-assisted m6A sequencing strategy (PA-m6A-seq) to more accurately define sites with m6A modification. Using this strategy, we obtained a high-resolution map of m6A in a human transcriptome. The map resembles the general distribution pattern observed previously, and reveals new m6A sites at base resolution. Our results provide insight into the relationship between the methylation regions and the binding sites of RNA-binding proteins.
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