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Record W1001396404 · doi:10.1128/9781555818296.ch16

Editing of tRNA

2014· book-chapter· en· W1001396404 on OpenAlex

Why this work is in the frame

A frame that forgets how it found something cannot be audited. These are the routes that admitted this work.

affAt least one author lists a Canadian institution in the pinned OpenAlex snapshot.

Bibliographic record

VenueASM Press eBooks · 2014
Typebook-chapter
Languageen
FieldBiochemistry, Genetics and Molecular Biology
TopicRNA modifications and cancer
Canadian institutionsDalhousie University
Fundersnot available
KeywordsRNA editingTransfer RNABiologyRNANucleotideGeneticsPrimer extensionGene

Abstract

fetched live from OpenAlex

The term “RNA editing” was first coined more than a decade ago to describe the phenomenon of uridine insertion into trypanosomatid mitochondrial transcripts. Unlike mRNAs, transcripts of tRNA and rRNA genes are themselves converted into the functional entities they encode. RNA editing events represent additional steps in posttranscriptional processing and, like nucleoside modifications, they may occur at different stages in the pathway. To quantify RNA editing one usually compares the intensity of the bands on a sequencing (or primer extension) ladder that correspond to the edited and unedited versions of the RNA. The first example of tRNA editing in a mitochondrial (mt) system is that reported to occur in the ameboid protozoon Acantbamoeba castellanii. The observed nucleotide substitutions consisted of both purine-to-purine and pyrimidine- to-purine changes, suggesting a mechanism involving base or nucleotide replacement. More recently, it has been shown that nascent mRNAs present in stalled RNA polymerase complexes are substrates for editing by both cytidine and dinucleotide insertion. In a particular study the isolated RNAs were found to be edited to within 14 to 22 nucleotides of the stalled polymerase, suggesting that the insertional editing activity in Physarum is able to act quite close to the site of RNA synthesis. The most recently described mode of tRNA editing is that found in the mitochondria of metazoa.

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.

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: Not applicable · Consensus signal: none
GenreCandidate signal: Other · Consensus signal: Other
Teacher disagreement score0.870
Threshold uncertainty score0.622

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 science0.0000.000
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 head0.023
GPT teacher head0.243
Teacher spread0.220 · 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