Evidence map›Paper›PMID 26694948›Full record

ArticleBiochemistry2016

Improved Incorporation of Noncanonical Amino Acids by an Engineered tRNA(Tyr) Suppressor.

Benjamin J Rauch, Joseph J Porter, Ryan A Mehl, John J Perona

Open access · greenAbstract read
In one paragraph

Article in Biochemistry, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 25 papers.

0numbers the graph read from it
0cells of the map it votes in
25citing papers in PubMed
1.8field-weighted citation impact, top 15% 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

25 citing papers in PubMed, 38 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. Review
  5. Review
  6. Review
  7. Article
  8. Review
  9. Generating EfficientACS chemical biology · 2022
    Article
  10. Article
  11. Impact of queuosine modification of endogenousFrontiers in molecular biosciences · 2022
    Article
  12. Therapeutic promise of engineered nonsense suppressor tRNAs.Wiley interdisciplinary reviews. RNA · 2021
    Review
  13. Article
  14. Article
  15. Article
  16. Article
  17. Article
  18. Review
  19. Review
  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 at 3 institutions in 1 country.

Benjamin J RauchDepartment of Chemistry, Portland State University , P.O. Box 751, Portland, Oregon 97207, United States.
Joseph J PorterDepartment of Biochemistry and Biophysics, Oregon State University , 2011 Agriculture and Life Sciences Building, Corvallis, Oregon 97331, United States.
Ryan A MehlDepartment of Biochemistry and Biophysics, Oregon State University , 2011 Agriculture and Life Sciences Building, Corvallis, Oregon 97331, United States.
John J PeronaDepartment of Chemistry, Portland State University , P.O. Box 751, Portland, Oregon 97207, United States.
Oregon State University · USOregon Health & Science University · USPortland State University · US

Funding

Equipment supplement: Defining Roles Of NitroTyrosine In Disease Via Genetic Code ExpansionR01GM114653 · NIGMS · OREGON STATE UNIVERSITY · PI MEHL, RYAN A · 2015 to 2024
$2.6M
NIGMS NIH HHS R01 GM114653PHS HHS RGM114653A
6 · The paper itself

Abstract

The Methanocaldcoccus jannaschii tyrosyl-tRNA synthetase (TyrRS):tRNA(Tyr) cognate pair has been used to incorporate a large number of noncanonical amino acids (ncAAs) into recombinant proteins in Escherichia coli. However, the structural elements of the suppressor tRNA(Tyr) used in these experiments have not been examined for optimal performance. Here, we evaluate the steady-state kinetic parameters of wild-type M. jannaschii TyrRS and an evolved 3-nitrotyrosyl-tRNA synthetase (nitroTyrRS) toward several engineered tRNA(Tyr) suppressors, and we correlate aminoacylation properties with the efficiency and fidelity of superfolder green fluorescent protein (sfGFP) synthesis in vivo. Optimal ncAA-sfGFP synthesis correlates with improved aminoacylation kinetics for a tRNA(Tyr) amber suppressor with two substitutions in the anticodon loop (G34C/G37A), while four additional mutations in the D and variable loops, present in the tRNA(Tyr) used in all directed evolution experiments to date, are deleterious to function both in vivo and in vitro. These findings extend to three of four other evolved TyrRS enzymes that incorporate distinct ncAAs. Suppressor tRNAs elicit decreases in amino acid Km values for both TyrRS and nitroTyrRS, suggesting that direct anticodon recognition by TyrRS need not be an impediment to superior performance of this orthogonal system and offering insight into novel approaches for directed evolution. The G34C/G37A tRNA(Tyr) may enhance future incorporation of many ncAAs by engineered TyrRS enzymes.

Indexed as

Amino AcidsArchaeal ProteinsDirected Molecular EvolutionEscherichia coliGreen Fluorescent ProteinsKineticsMethanocaldococcusMutationNucleotidesRecombinant ProteinsTyrosineTyrosine-tRNA Ligase3-nitrotyrosineAmino AcidsArchaeal ProteinsGreen Fluorescent ProteinsNucleotidesRecombinant ProteinsTyrosineTyrosine-tRNA Ligase

Identifiers

PMID26694948
PMCPMC4959848
OpenAlexW2227591440

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.