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Record W4389206767 · doi:10.22215/etd/2023-15792

Exploring the Genetic Interactions of Quinolone Resistance Mutations in Escherichia coli

2023· dissertation· en· W4389206767 on OpenAlexaff
C Porter

Bibliographic record

Venuenot available
Typedissertation
Languageen
FieldBiochemistry, Genetics and Molecular Biology
TopicAntibiotic Resistance in Bacteria
Canadian institutionsCarleton University
Fundersnot available
KeywordsQuinoloneEscherichia coliBiologyMutantGeneGene knockoutDNA gyraseGeneticsDrug resistanceAntibiotic resistanceMutationComputational biologyAntibiotics

Abstract

fetched live from OpenAlex

Globally, antimicrobial resistance (AMR) is a rapidly growing public health concern which demands the need for new treatment strategies.One promising approach is the use of drug adjuvants, which function to restore the efficacy of pre-existing antimicrobials.Despite their importance, there are no approved adjuvants for quinolones.This study used a genetic approach to identify potential drug targets for novel adjuvant therapies for treating quinolone resistance caused by mutations in the gyrA gene.I screened 10 Escherichia coli genes in clinically relevant gyrA mutant backgrounds to identify genes whose knockout impacts resistance and fitness.The knockout of tus and priA genes largely reduced resistance in the gyrA S83L background but had no effect in other gyrA mutants, indicating genetic background dependency.Deleting tolC and xseA genes effectively reversed ciprofloxacin resistance across all gyrA mutants, suggesting their potential as drug targets.

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 machine prediction

Teacher imitation

Not calibrated prevalence, not ground truth. Human validation pending. The Gemma side is a direct model label for every work in the frame, read from the title-only record. The Codex side is a classifier learned from the 10,348 direct Codex labels and calibrated to design-weighted sample rates; fields without enough sample support carry no Codex call. Candidate is the union of the two sides; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels.

metaresearch head score (Codex)0.000
metaresearch head score (Gemma)0.000
Version: metacan-v3-hybrid-931329e0061cValidation 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 score0.001
Threshold uncertainty score0.003

Distilled classifier scores by category (both heads)

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)0.0010.000

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 head0.037
GPT teacher head0.294
Teacher spread0.257 · 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 source (direct Gemma or distilled Codex), 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

Citations0
Published2023
Admission routes1
Has abstractyes

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