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Record W2042242981 · doi:10.1002/wdev.93

The <i>Caenorhabditis elegans</i> intestine

2012· review· en· W2042242981 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

VenueWiley Interdisciplinary Reviews Developmental Biology · 2012
Typereview
Languageen
FieldBiochemistry, Genetics and Molecular Biology
TopicGenetics, Aging, and Longevity in Model Organisms
Canadian institutionsAlberta Children's HospitalUniversity of Calgary
Fundersnot available
KeywordsEndodermBiologyCaenorhabditis elegansTranscription factorBlastomerePolarity in embryogenesisCell biologyGeneticsCell fate determinationMesodermCiona intestinalisCellular differentiationEmbryoGeneEmbryonic stem cellGastrulationEmbryogenesis

Abstract

fetched live from OpenAlex

The transcriptional regulatory hierarchy that controls development of the Caenorhabditis elegans endoderm begins with the maternally provided SKN-1 transcription factor, which determines the fate of the EMS blastomere of the four-cell embryo. EMS divides to produce the posterior E blastomere (the clonal progenitor of the intestine) and the anterior MS blastomere, a major contributor to mesoderm. This segregation of lineage fates is controlled by an intercellular signal from the neighboring P2 blastomere and centers on the HMG protein POP-1. POP-1 would normally repress the endoderm program in both E and MS but two consequences of the P2-to-EMS signal are that POP-1 is exported from the E-cell nucleus and the remaining POP-1 is converted to an endoderm activator by complexing with SYS-1, a highly diverged β-catenin. In the single E cell, a pair of genes encoding small redundant GATA-type transcription factors, END-1 and END-3, are transcribed under the combined control of SKN-1, the POP-1/SYS-1 complex, as well as the redundant pair of MED-1/2 GATA factors, themselves direct zygotic targets of SKN-1 in the EMS cell. With the expression of END-1/END-3, the endoderm is specified. END-1 and END-3 then activate transcription of a further set of GATA-type transcription factors that drive intestine differentiation and function. One of these factors, ELT-2, appears predominant; a second factor, ELT-7, is partially redundant with ELT-2. The mature intestine expresses several thousand genes, apparently all controlled, at least in part, by cis-acting GATA-type motifs.

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)0.001
metaresearch head score (Gemma)0.000
Version: codex-gemma-dda1882f352aValidation status: machine_predicted_unvalidated
Candidate categoriesMeta-epidemiology (narrow), Insufficient payload (model declined to judge)
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Not applicable · Consensus signal: none
GenreCandidate signal: Review · Consensus signal: Review
Teacher disagreement score0.974
Threshold uncertainty score1.000

Codex and Gemma teacher scores by category

CategoryCodexGemma
Metaresearch0.0010.000
Meta-epidemiology (narrow)0.0010.001
Meta-epidemiology (broad)0.0020.001
Bibliometrics0.0000.000
Science and technology studies0.0010.001
Scholarly communication0.0000.000
Open science0.0020.003
Research integrity0.0010.001
Insufficient payload (model declined to judge)0.0000.001

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 head0.047
GPT teacher head0.336
Teacher spread0.289 · 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