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Record W2759769147

Mechanisms of Vts1-Mediated Repression in S. cerevisiae

2011· dissertation· en· W2759769147 on OpenAlexfundno aff
Agata Orlowicz

Bibliographic record

VenueTSpace (University of Toronto) · 2011
Typedissertation
Languageen
FieldBiochemistry, Genetics and Molecular Biology
TopicSteroid Chemistry and Biochemistry
Canadian institutionsnot available
FundersUniversity of TorontoComic Relief
KeywordsPsychological repressionSaccharomyces cerevisiaeGeneticsBiologyYeastGene expression
DOInot available

Abstract

fetched live from OpenAlex

Vts1p is the Saccharomyces cerevisiae member of the Smaug family of post-transcriptional regulators, which is a group of sequence-specific RNA-binding proteins that regulate target mRNA expression. Vts1p is known to mediate deadenylation-dependent degradation of target transcripts through the recruitment of the Ccr4p/Pop2p/Not deadenylase complex. By conducting a functional analysis of Vts1p deletion mutants, I demonstrate that two regions within Vts1p are independently capable of downregulating the expression of an mRNA reporter. I provide both genetic and biochemical evidence that suggests residues 170-523 regulate reporter expression at the level of mRNA stability and function through a mechanism that requires the Ccr4p/Pop2p/Not deadenylase, whereas residues 1-237 repress reporter expression at the level of translation and function through a novel mechanism. In addition, I map a direct interaction between the eIF4E-binding protein, Eap1p, and the Vts1p SAM domain, which suggests a model in which residues 170-523 recruit Eap1p to mediate efficient target transcript degradation.

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 categoriesInsufficient payload (model declined to judge)
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 score0.052
Threshold uncertainty score0.999

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 integrity0.0010.000
Insufficient payload (model declined to judge)0.0030.000

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 head0.008
GPT teacher head0.226
Teacher spread0.218 · 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.

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

Citations0
Published2011
Admission routes1
Has abstractyes

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