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Record W4253321643 · doi:10.32920/ryerson.14665902

Assessing the impact of select intestinal tract conditions on expression of lee encoded genes in enterohemorrhagic escherichia

2021· preprint· en· W4253321643 on OpenAlexaff
Veronica Cojocari

Bibliographic record

Venuenot available
Typepreprint
Languageen
FieldBiochemistry, Genetics and Molecular Biology
TopicEscherichia coli research studies
Canadian institutionsToronto Metropolitan University
Fundersnot available
KeywordsEscherichia coliBiologyGeneSecretionMicrobiologyType three secretion systemBacterial outer membraneBacteriaCell biologyGeneticsVirulenceBiochemistry

Abstract

fetched live from OpenAlex

Enterohemorrhagic Escherichia coli (EHEC) O157:H7 strain 86-24 accomplishes successful infection upon creating attaching and effacing (A/E) lesions on the enterocytes found in the large intestine. The A/E lesion event is possible due to the type III secretion system (T3SS) spanning the EHEC inner and outer membrane. T3SS is a molecular syringe that enables EHEC to establish trans-kingdom interactions with human and other animal hosts. The assembly and regulation of the T3SS is poorly understood. GFP reporter assay experiments showed that short chain fatty acid (SCFA) mixes representative of the large intestine increase the activity of the esp promoter that precedes the espA gene, an important component of the T3SS. Attachment data experiments showed that EspA is essential for EHEC attachment to HEp-2 epithelial cells. The data shows that biochemical cues encountered by EHEC play a role in the regulation and assembly of the T3SS ultimately leading to A/E lesion formation.

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 score0.004

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 integrity0.0000.001
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 head0.036
GPT teacher head0.382
Teacher spread0.346 · 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
Published2021
Admission routes1
Has abstractyes

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