Dom34 rescues ribosomes in 3' untranslated regions.
Dom34 rescues ribosomes in 3' untranslated regions.
复制标题
DOI:
10.1016/j.cell.2014.02.006
复制
发表时间:
2014-02-27
期刊:
影响因子:
64.5
通讯作者:
Green R
中科院分区:
文献类型:
--
作者:
Guydosh NR;Green R
Ribosomes that stall before completing peptide synthesis must be recycled and returned to the cytoplasmic pool. The protein Dom34 and cofactors Hbs1 and Rli1 can dissociate stalled ribosomes in vitro, but the identity of targets in the cell is unknown. Here we extend ribosome profiling methodology to reveal a high-resolution molecular characterization of Dom34 function in vivo. Dom34 removes stalled ribosomes from truncated mRNAs, but, in contrast, does not generally dissociate ribosomes on coding sequences known to trigger stalling, such as polyproline. We also show that Dom34 targets arrested ribosomes near the ends of 3´ UTRs. These ribosomes appear to gain access to the 3 UTR via a mechanism that does not require decoding of the mRNA. These results suggest that ribosomes frequently enter downstream noncoding regions and that Dom34 carries out the important task of rescuing them.
登录
查看更多内容
影响因子:
7.2
作者:
Dever TE;Green R
通讯作者:
Green R
影响因子:
7.7
作者:
Dunn JG;Foo CK;Belletier NG;Gavis ER;Weissman JS
通讯作者:
Weissman JS
影响因子:
16
作者:
Cole SE;LaRiviere FJ;Merrikh CN;Moore MJ
通讯作者:
Moore MJ
影响因子:
64.8
作者:
Amrani, N;Ganesan, R;Jacobson, A
通讯作者:
Jacobson, A
DOI:
10.1126/science.1215110
发表时间:
2012-02-03
期刊:
Science (New York, N.Y.)
影响因子:
--
作者:
Brar GA;Yassour M;Friedman N;Regev A;Ingolia NT;Weissman JS
通讯作者:
Weissman JS