Human disease-associated single nucleotide polymorphism changes the orientation of DROSHA on pri-mir-146a.
Human disease-associated single nucleotide polymorphism changes the orientation of DROSHA on pri-mir-146a.
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人类疾病相关单核苷酸多态性改变了 pri-mir-146a 上 DROSHA 的方向
DOI:
10.1261/rna.077487.120
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发表时间:
2020-12
期刊:
影响因子:
--
通讯作者:
Nguyen TA
中科院分区:
文献类型:
--
作者:
Le CT;Nguyen TL;Nguyen TD;Nguyen TA
The Microprocessor complex of DROSHA and DGCR8 initiates the biosynthesis of microRNAs (miRNAs) by processing primary miRNAs (pri-miRNAs). The Microprocessor can be oriented on pri-miRNAs in opposite directions to generate productive and unproductive cleavages at their basal and apical junctions, respectively. However, only the productive cleavage gives rise to miRNAs. A single nucleotide polymorphism (SNP, rs2910164) in pri-mir-146a is associated with various human diseases. Although this SNP was found to reduce the expression of miRNA, it is still not known if it affects the activity of the Microprocessor directly, and how it functions. In this study, we revealed that the SNP creates an unexpected mGHG motif at the apical junction of pri-mir-146a. This mGHG motif interacts with the double-stranded RNA-binding domain (dsRBD) of DROSHA, switching its orientation on pri-mir-146a from the basal to the apical junction. As a result, the SNP facilitates Microprocessor to cleave SNP-pri-mir-146a at its unproductive sites. Our findings help to elucidate the molecular mechanism that explains how the disease-associated SNP modulates the biogenesis of pri-mir-146a and thereby affects its cellular functions.
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影响因子:
5.6
作者:
Bao MH;Xiao Y;Zhang QS;Luo HQ;Luo J;Zhao J;Li GY;Zeng J;Li JM
通讯作者:
Li JM
DOI:
10.1261/rna.065862.118
发表时间:
2018-07
期刊:
RNA (New York, N.Y.)
影响因子:
--
作者:
Kim K;Nguyen TD;Li S;Nguyen TA
通讯作者:
Nguyen TA
影响因子:
14.9
作者:
Chen C;Ridzon DA;Broomer AJ;Zhou Z;Lee DH;Nguyen JT;Barbisin M;Xu NL;Mahuvakar VR;Andersen MR;Lao KQ;Livak KJ;Guegler KJ
通讯作者:
Guegler KJ
影响因子:
3.7
作者:
Iguchi T;Nambara S;Masuda T;Komatsu H;Ueda M;Kidogami S;Ogawa Y;Hu Q;Sato K;Saito T;Hirata H;Sakimura S;Uchi R;Hayashi N;Ito S;Eguchi H;Sugimachi K;Maehara Y;Mimori K
通讯作者:
Mimori K
影响因子:
14.9
作者:
Fromm, Bastian;Domanska, Diana;Peterson, Kevin J.
通讯作者:
Peterson, Kevin J.