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Record W2583079108 · doi:10.1021/jacs.6b13148

Enhanced Nonenzymatic RNA Copying with 2-Aminoimidazole Activated Nucleotides

2017· article· en· W2583079108 on OpenAlexfundno aff
Li Li, Noam Prywes, Chun Pong Tam, Derek K. O’Flaherty, Victor S. Lelyveld, Enver Çagrı Izgü, Ayan Pal, Jack W. Szostak

Bibliographic record

VenueJournal of the American Chemical Society · 2017
Typearticle
Languageen
FieldBiochemistry, Genetics and Molecular Biology
TopicRNA and protein synthesis mechanisms
Canadian institutionsnot available
FundersFonds de recherche du Québec – Nature et technologiesDivision of ChemistryLife Sciences Research FoundationSimons FoundationHoward Hughes Medical Institute
KeywordsChemistryProtocellRNANucleotideTrimerTemplatePrimer extensionPrimer (cosmetics)CopyingMonomerCombinatorial chemistryNanotechnologyBiochemistryDimerOrganic chemistryGenetics

Abstract

fetched live from OpenAlex

Achieving efficient nonenzymatic replication of RNA is an important step toward the synthesis of self-replicating protocells that may mimic early forms of life. Despite recent progress, the nonenzymatic copying of templates containing mixed sequences remains slow and inefficient. Here we demonstrate that activating nucleotides with 2-aminoimidazole results in superior reaction kinetics and improved yields of primer extension reaction products. This new leaving group significantly accelerates monomer addition as well as trimer-assisted RNA primer extension, allowing efficient copying of a variety of short RNA templates with mixed sequences.

Fetched live from OpenAlex and de-inverted. Abstracts are not stored in this database: the inverted indexes are 8.6 GB of the frame’s 9.3 GB of text, and the host has 13 GB free.

How this classification was reachedexpand

Full frame distilled prediction

Teacher imitation

Not calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.

metaresearch head score (Codex)0.000
metaresearch head score (Gemma)0.000
Version: codex-gemma-dda1882f352aValidation status: machine_predicted_unvalidated
Candidate categoriesnone
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Bench or experimental · Consensus signal: Bench or experimental
GenreCandidate signal: Empirical · Consensus signal: Empirical
Teacher disagreement score0.004
Threshold uncertainty score0.321

Codex and Gemma teacher scores by category

CategoryCodexGemma
Metaresearch0.0000.000
Meta-epidemiology (narrow)0.0000.000
Meta-epidemiology (broad)0.0000.000
Bibliometrics0.0000.000
Science and technology studies0.0000.000
Scholarly communication0.0000.000
Open science0.0010.000
Research integrity0.0000.000
Insufficient payload (model declined to judge)0.0000.000

Machine scores (provisional)

The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.

Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.

Opus teacher head0.010
GPT teacher head0.249
Teacher spread0.239 · how far apart the two teachers sit on this one work
Validation statusscore_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from it

Classification

machine, unvalidated

Machine predicted; a candidate call from one teacher head, not a consensus.

The models applied no category: nothing in the taxonomy fit this work.
Study designBench or experimental
Domainnot available
GenreEmpirical

How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".

Quick stats

Citations195
Published2017
Admission routes1
Has abstractyes

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