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Protein synthesis. Rqc2p and 60S ribosomal subunits mediate mRNA-independent elongation of nascent chains.

Overview of attention for article published in Science, January 2015
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About this Attention Score

  • In the top 5% of all research outputs scored by Altmetric
  • High Attention Score compared to outputs of the same age (99th percentile)
  • High Attention Score compared to outputs of the same age and source (94th percentile)

Readers on

mendeley
240 Mendeley
citeulike
5 CiteULike
Title
Protein synthesis. Rqc2p and 60S ribosomal subunits mediate mRNA-independent elongation of nascent chains.
Published in
Science, January 2015
DOI 10.1126/science.1259724
Pubmed ID
Authors

Peter S. Shen, Joseph Park, Yidan Qin, Xueming Li, Krishna Parsawar, Matthew H. Larson, James Cox, Yifan Cheng, Alan M. Lambowitz, Jonathan S. Weissman, Onn Brandman, Adam Frost

Abstract

In Eukarya, stalled translation induces 40S dissociation and recruitment of the ribosome quality control complex (RQC) to the 60S subunit, which mediates nascent chain degradation. Here we report cryo-electron microscopy structures revealing that the RQC components Rqc2p (YPL009C/Tae2) and Ltn1p (YMR247C/Rkr1) bind to the 60S subunit at sites exposed after 40S dissociation, placing the Ltn1p RING (Really Interesting New Gene) domain near the exit channel and Rqc2p over the P-site transfer RNA (tRNA). We further demonstrate that Rqc2p recruits alanine- and threonine-charged tRNA to the A site and directs the elongation of nascent chains independently of mRNA or 40S subunits. Our work uncovers an unexpected mechanism of protein synthesis, in which a protein--not an mRNA--determines tRNA recruitment and the tagging of nascent chains with carboxy-terminal Ala and Thr extensions ("CAT tails").

Twitter Demographics

The data shown below were collected from the profiles of 110 tweeters who shared this research output. Click here to find out more about how the information was compiled.

Mendeley readers

The data shown below were compiled from readership statistics for 240 Mendeley readers of this research output. Click here to see the associated Mendeley record.

Geographical breakdown

Country Count As %
United States 10 4%
United Kingdom 4 2%
Germany 3 1%
Spain 3 1%
Italy 2 <1%
South Africa 2 <1%
China 1 <1%
Netherlands 1 <1%
Sweden 1 <1%
Other 4 2%
Unknown 209 87%

Demographic breakdown

Readers by professional status Count As %
Student > Ph. D. Student 97 40%
Researcher 47 20%
Student > Master 31 13%
Student > Bachelor 22 9%
Professor > Associate Professor 11 5%
Other 32 13%
Readers by discipline Count As %
Agricultural and Biological Sciences 152 63%
Biochemistry, Genetics and Molecular Biology 44 18%
Medicine and Dentistry 14 6%
Chemistry 11 5%
Unspecified 7 3%
Other 12 5%

Attention Score in Context

This research output has an Altmetric Attention Score of 288. This is our high-level measure of the quality and quantity of online attention that it has received. This Attention Score, as well as the ranking and number of research outputs shown below, was calculated when the research output was last mentioned on 03 July 2017.
All research outputs
#23,704
of 8,642,801 outputs
Outputs from Science
#930
of 42,562 outputs
Outputs of similar age
#740
of 242,188 outputs
Outputs of similar age from Science
#41
of 771 outputs
Altmetric has tracked 8,642,801 research outputs across all sources so far. Compared to these this one has done particularly well and is in the 99th percentile: it's in the top 5% of all research outputs ever tracked by Altmetric.
So far Altmetric has tracked 42,562 research outputs from this source. They typically receive a lot more attention than average, with a mean Attention Score of 34.3. This one has done particularly well, scoring higher than 97% of its peers.
Older research outputs will score higher simply because they've had more time to accumulate mentions. To account for age we can compare this Altmetric Attention Score to the 242,188 tracked outputs that were published within six weeks on either side of this one in any source. This one has done particularly well, scoring higher than 99% of its contemporaries.
We're also able to compare this research output to 771 others from the same source and published within six weeks on either side of this one. This one has done particularly well, scoring higher than 94% of its contemporaries.