Genome-wide Survey of Ribosome Collision.
Genome-wide Survey of Ribosome Collision.
复制标题
核糖体碰撞的全基因组调查。
DOI:
10.1016/j.celrep.2020.107610
复制
发表时间:
2020-05-05
期刊:
影响因子:
8.8
通讯作者:
Iwasaki S
中科院分区:
文献类型:
--
作者:
Han P;Shichino Y;Schneider-Poetsch T;Mito M;Hashimoto S;Udagawa T;Kohno K;Yoshida M;Mishima Y;Inada T;Iwasaki S
Ribosome movement is not always smooth and is rather often impeded. For ribosome pauses, fundamental issues remain to be addressed, including where ribosomes pause on mRNAs, what kind of RNA/amino acid sequence causes this pause, and the physiological significance of this attenuation of protein synthesis. Here, we survey the positions of ribosome collisions caused by ribosome pauses in humans and zebrafish using modified ribosome profiling. Collided ribosomes, i.e., disomes, emerge at various sites: Pro-Pro/Gly/Asp motifs; Arg-X-Lys motifs; stop codons; and 3’ untranslated regions. The electrostatic interaction between the charged nascent chain and the ribosome exit tunnel determines the eIF5A-mediated disome rescue at the Pro-Pro sites. In particular, XBP1u, a precursor of endoplasmic reticulum (ER)-stress-responsive transcription factor, shows striking queues of collided ribosomes and thus acts as a degradation substrate by ribosome-associated quality control. Our results provide insight into the causes and consequences of ribosome pause by dissecting collided ribosomes. Han et al. survey ribosome collision sites across the transcriptome by sequencing disome footprints in humans and zebrafish and find that inefficient contexts for elongation, termination, and recycling of ribosomes contributes to the collision of ribosomes. They also uncover XBP1u as an endogenous target of ribosome-associated quality control.
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:
14.9
作者:
Chan PP;Lowe TM
通讯作者:
Lowe TM
DOI:
10.1038/nrm4069
发表时间:
2015-11
期刊:
Nature reviews. Molecular cell biology
影响因子:
--
作者:
Brar GA;Weissman JS
通讯作者:
Weissman JS
影响因子:
14.9
作者:
BROWN, CM;STOCKWELL, PA;TATE, WP
通讯作者:
TATE, WP
DOI:
10.1073/pnas.0812819106
发表时间:
2009-02-17
影响因子:
11.1
作者:
Chu, Jessie;Hong, Nancy A.;Kay, Steve A.
通讯作者:
Kay, Steve A.