Evidence map›Paper›PMID 23624110›Full record

ArticleJournal of molecular biology2013

Reconstitution of selenocysteine incorporation reveals intrinsic regulation by SECIS elements.

Nirupama Gupta, Louise W DeMong, Sowmya Banda, Paul R Copeland

Abstract read
In one paragraph

Article in Journal of molecular biology, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 23 papers.

0numbers the graph read from it
0cells of the map it votes in
23citing papers in PubMed
1.9field-weighted citation impact, top 14% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

23 citing papers in PubMed, 35 citations in OpenAlex.

  1. Review
  2. Review
  3. Review
  4. Article
  5. Article
  6. Bioinformatics of Selenoproteins.Antioxidants & redox signaling · 2020
    Review
  7. Article
  8. Article
  9. Review
  10. Article
  11. Article
  12. Article
  13. Molecular mechanism of selenoprotein P synthesis.Biochimica et biophysica acta. General subjects · 2018
    Review
  14. Review
  15. Article
  16. The utilization of selenocysteine-tRNATranslation (Austin, Tex.) · 2017
    Article
  17. Article
  18. Article
  19. Article
  20. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

4 authors.

Nirupama GuptaDepartment of Biochemistry and Molecular Biology, University of Medicine and Dentistry of New Jersey, Robert Wood Johnson Medical School, 675 Hoes Lane, Piscataway, NJ 08854, USA.
Louise W DeMong
Sowmya Banda
Paul R Copeland

Funding

Functional Analysis of SBP2 and Selenocysteine IncorporationR01GM077073 · NIGMS · UNIV OF MED/DENT NJ-R W JOHNSON MED SCH · PI COPELAND, PAUL R · 2006 to 2022
$5.5M
Expanding The Genetic Code In YeastR01GM094833 · NIGMS · UNIV OF MED/DENT NJ-R W JOHNSON MED SCH · PI COPELAND, PAUL R · 2010 to 2013
$1.2M
NIGMS NIH HHS GM077073NIGMS NIH HHS GM094833NIGMS NIH HHS R01 GM077073NIGMS NIH HHS R01 GM094833
6 · The paper itself

Abstract

Selenoproteins are present in all three domains of life and are responsible for a major part of a cell's antioxidant defense against reactive oxygen species. Synthesis of selenoproteins requires the decoding of a UGA codon as selenocysteine (Sec) instead of translation termination. Sec is incorporated into the growing polypeptide chain during translation elongation and is known to require a set of highly specific factors: the Sec insertion sequence (SECIS) element in the 3' untranslated region, Sec-tRNA(Sec), the Sec-specific elongation factor eEFSec, and SECIS binding protein 2. Since reconstitution has not been reported, whether these factors are sufficient is unknown. Here, we report a novel in vitro translation system in which Sec incorporation has been reconstituted from purified components introduced into a Sec naive system. In addition, we developed a novel method to purify Sec-tRNA(Sec) and active eEFSec/GTP/tRNA ternary complex. We found that the known basal factors are sufficient for Sec incorporation in vitro. Using this highly manipulable system, we have also found that ribosomes from non-Sec-utilizing organisms cannot support Sec incorporation and that some SECIS elements are intrinsically less efficient than others. Having identified the essential set of factors, this work removes a significant barrier to our understanding of the mechanism of Sec incorporation.

Indexed as

Codon, TerminatorProtein Biosynthesis3' Untranslated RegionsAnimalsCell ExtractsCell-Free SystemMalePeptide Elongation FactorsRatsRibosomesRNA-Binding ProteinsRNA, MessengerRNA, Transfer, Amino Acid-SpecificSelenocysteineTestis3' Untranslated RegionsCell ExtractsCodon, TerminatorPeptide Elongation FactorsRNA-Binding ProteinsRNA, MessengerRNA, Transfer, Amino Acid-SpecificSelenocysteinetRNA, selenocysteine-

Identifiers

PMID23624110
PMCPMC3699960
OpenAlexW2122206533

What OpenQuestion holds

Textmetadata
LicenceTDM
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.