The DEAD-Box Protein Dhh1p Couples mRNA Decay and Translation by Monitoring Codon Optimality.
The DEAD-Box Protein Dhh1p Couples mRNA Decay and Translation by Monitoring Codon Optimality.
复制标题
DOI:
10.1016/j.cell.2016.08.053
复制
发表时间:
2016-09-22
期刊:
影响因子:
64.5
通讯作者:
Coller J
中科院分区:
文献类型:
--
作者:
Radhakrishnan A;Chen YH;Martin S;Alhusaini N;Green R;Coller J
A major determinant of mRNA half-life is the codon-dependent rate of translational elongation. How the processes of translational elongation and mRNA decay communicate is unclear. Here we establish that the DEAD-box protein Dhh1p is a sensor of codon optimality that targets an mRNA for decay. First, we find mRNAs whose translation elongation rate is slowed by inclusion of nonoptimal codons are specifically degraded in a Dhh1p-dependent manner. Biochemical experiments show Dhh1p is preferentially associated with mRNAs with suboptimal codon choice. We find these effects on mRNA decay are sensitive to the number of slow moving ribosomes on an mRNA. Moreover, we find Dhh1p overexpression leads to the accumulation of ribosomes specifically on mRNAs (and even codons) of low codon optimality. Lastly, Dhh1p physically interacts with ribosomes in vivo. Together, these data argue that Dhh1p is a sensor for ribosome speed, targeting an mRNA for repression and subsequent decay.
登录
查看更多内容
影响因子:
9.8
作者:
Charneski CA;Hurst LD
通讯作者:
Hurst LD
影响因子:
16.2
作者:
Barbee, Scott A.;Estes, Patricia S.;Ramaswami, Mani
通讯作者:
Ramaswami, Mani
影响因子:
7.8
作者:
Carroll, Johanna S.;Munchel, Sarah E.;Weis, Karsten
通讯作者:
Weis, Karsten
影响因子:
64.5
作者:
Guydosh NR;Green R
通讯作者:
Green R
影响因子:
64.5
作者:
Darnell JC;Van Driesche SJ;Zhang C;Hung KY;Mele A;Fraser CE;Stone EF;Chen C;Fak JJ;Chi SW;Licatalosi DD;Richter JD;Darnell RB
通讯作者:
Darnell RB