Evidence map›Paper›PMID 27219699›Full record

ArticleNature chemistry2016

Evolution of thermophilic DNA polymerases for the recognition and amplification of C2'-modified DNA.

Tingjian Chen, Narupat Hongdilokkul, Zhixia Liu, Ramkrishna Adhikary, Shujian S Tsuen, Floyd E Romesberg

Abstract read
In one paragraph

Article in Nature chemistry, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 65 papers.

0numbers the graph read from it
0cells of the map it votes in
65citing papers in PubMed
11.1field-weighted citation impact, top 1% 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

65 citing papers in PubMed, 133 citations in OpenAlex.

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5 more citing papers are in PubMed but not listed here.

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

6 authors at 1 institution in 1 country.

Tingjian ChenDepartment of Chemistry, The Scripps Research Institute, 10550 North Torrey Pines Road, La Jolla, California 92037, USA.ORCID 0000-0002-4458-4269
Narupat HongdilokkulDepartment of Chemistry, The Scripps Research Institute, 10550 North Torrey Pines Road, La Jolla, California 92037, USA.
Zhixia LiuDepartment of Chemistry, The Scripps Research Institute, 10550 North Torrey Pines Road, La Jolla, California 92037, USA.
Ramkrishna AdhikaryDepartment of Chemistry, The Scripps Research Institute, 10550 North Torrey Pines Road, La Jolla, California 92037, USA.
Shujian S TsuenDepartment of Chemistry, The Scripps Research Institute, 10550 North Torrey Pines Road, La Jolla, California 92037, USA.
Floyd E RomesbergDepartment of Chemistry, The Scripps Research Institute, 10550 North Torrey Pines Road, La Jolla, California 92037, USA.
Scripps Research Institute · US

Funding

Increasing the Utility of Polymerases by Directed EvolutionR01GM097489 · NIGMS · SCRIPPS RESEARCH INSTITUTE, THE · PI ROMESBERG, FLOYD E. · 2011 to 2014
$1.4M
NIGMS NIH HHS R01 GM097489
6 · The paper itself

Abstract

The PCR amplification of oligonucleotides enables the evolution of sequences called aptamers that bind specific targets with antibody-like affinity. However, in many applications the use of these aptamers is limited by nuclease-mediated degradation. In contrast, oligonucleotides that are modified at their sugar C2' positions with methoxy or fluorine substituents are stable to nucleases, but they cannot be synthesized by natural polymerases. Here we report the development of a polymerase-evolution system and its use to evolve thermostable polymerases that efficiently interconvert C2'-OMe-modified oligonucleotides and their DNA counterparts via 'transcription' and 'reverse transcription' or, more importantly, that PCR-amplify partially C2'-OMe- or C2'-F-modified oligonucleotides. A mechanistic analysis demonstrates that the ability to amplify the modified oligonucleotides evolved by optimizing interdomain interactions that stabilize the catalytically competent closed conformation of the polymerase. The evolved polymerases should find practical applications and the developed evolution system should be a powerful tool for tailoring polymerases to have other types of novel function.

Indexed as

Aptamers, NucleotideDNADNA-Directed DNA PolymeraseDNA ReplicationEvolution, MolecularHot TemperatureModels, MolecularNucleic Acid ConformationOligonucleotidesAptamers, NucleotideDNADNA-Directed DNA PolymeraseOligonucleotides

Identifiers

PMID27219699
PMCPMC4880425
OpenAlexW2340611904

What OpenQuestion holds

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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.