Evidence map›Paper›PMID 23589624›Full record

ArticleNucleic acids research2013

Cell-free co-production of an orthogonal transfer RNA activates efficient site-specific non-natural amino acid incorporation.

Cem Albayrak, James R Swartz

Open access · goldAbstract read
In one paragraph

Article in Nucleic acids research, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 50 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
50citing papers in PubMed, 1 pooled it
5.5field-weighted citation impact, top 3% 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

50 citing papers in PubMed, 1 synthesis or guideline pooled it, 112 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. BeyondChemical reviews · 2025
    Review
  4. Review
  5. A Cost-EffectiveBioengineering (Basel, Switzerland) · 2024
    Article
  6. Review
  7. Article
  8. Cell-free Biosynthesis of Peptidomimetics.Biotechnology and bioprocess engineering : BBE · 2023
    Review
  9. Article
  10. Article
  11. Article
  12. Article
  13. Article
  14. Article
  15. Article
  16. Biochemistry · 2021
    Article
  17. Article
  18. Review
  19. Review
  20. International journal of molecular sciences · 2020
    Review
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

2 authors at 1 institution in 1 country.

Cem AlbayrakDepartment of Chemical Engineering, Stanford University, 381 North-South Mall, Stanford, CA 94305, USA.
James R Swartz
Stanford University · US

Funding

LTQ Orbitrap XL ETD Mass SpectrometerS10RR027425 · NCRR · STANFORD UNIVERSITY · PI WANDLESS, THOMAS JAMES · 2010 to 2010
$500k
NCRR NIH HHS S10 RR027425
6 · The paper itself

Abstract

We describe a new cell-free protein synthesis (CFPS) method for site-specific incorporation of non-natural amino acids (nnAAs) into proteins in which the orthogonal tRNA (o-tRNA) and the modified protein (i.e. the protein containing the nnAA) are produced simultaneously. Using this method, 0.9-1.7 mg/ml of modified soluble super-folder green fluorescent protein (sfGFP) containing either p-azido-l-phenylalanine (pAzF) or p-propargyloxy-l-phenylalanine (pPaF) accumulated in the CFPS solutions; these yields correspond to 50-88% suppression efficiency. The o-tRNA can be transcribed either from a linearized plasmid or from a crude PCR product. Comparison of two different o-tRNAs suggests that the new platform is not limited by Ef-Tu recognition of the acylated o-tRNA at sufficiently high o-tRNA template concentrations. Analysis of nnAA incorporation across 12 different sites in sfGFP suggests that modified protein yields and suppression efficiencies (i.e. the position effect) do not correlate with any of the reported trends. Sites that were ineffectively suppressed with the original o-tRNA were better suppressed with an optimized o-tRNA (o-tRNA(opt)) that was evolved to be better recognized by Ef-Tu. This new platform can also be used to screen scissile ribozymes for improved catalysis.

Indexed as

Protein BiosynthesisAmino AcidsAzidesCell-Free SystemPeptide Elongation Factor TuPhenylalaninePolymerase Chain ReactionProteinsRNA, CatalyticRNA, Transfer4-azidophenylalanine4-propargyloxyphenylalanineAmino AcidsAzidesPeptide Elongation Factor TuPhenylalanineProteinsRNA, CatalyticRNA, Transfer

Identifiers

PMID23589624
PMCPMC3675464
OpenAlexW2039552715

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC
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.