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Record W2111894430 · doi:10.1007/1-4020-2593-9_5

Large Arf GEFs of the Golgi Complex

2006· book-chapter· en· W2111894430 on OpenAlex
Paul Melançon, Xinhua Zhao, Troy K. R. Lasell

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

VenueKluwer Academic Publishers eBooks · 2006
Typebook-chapter
Languageen
FieldBiochemistry, Genetics and Molecular Biology
TopicCellular transport and secretion
Canadian institutionsUniversity of Alberta
Fundersnot available
KeywordsGolgi apparatusCOPICell biologyBiologyClathrinSignal transducing adaptor proteinSecretory pathwayVesicleEndoplasmic reticulumBiochemistrySignal transductionMembrane

Abstract

fetched live from OpenAlex

Class I and class II Arfs localize to the Golgi complex where they activate lipid-modifying enzymes and also promote the recruitment of several coat proteins implicated in the sorting of cargo into budding transport vesicles. Three families of large GEFs spatially and temporally regulate Arf activation in this organelle. GBF1, a BFA-resistant GEF with specificity for Class II Arfs in vitro, localizes to cis-compartments of the Golgi and appears to regulate assembly of the COPI coat. In contrast, BIG1 and BIG2 are BFA-sensitive GEFs that concentrate on trans-compartments where they control the recruitment of clathrin adaptor proteins. BRAG1, a representative of the third family, is confined to early Golgi compartments, but unlike GBF1 displays broader Arf substrate specificity. These large GEFs are likely multidomain proteins with complex interactions responsible for regulating activity, membrane association and possibly the selection of downstream effectors. Ongoing efforts in several laboratories focus on the identification of partners for these GEFs.

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 categoriesMeta-epidemiology (narrow), Research integrity
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Not applicable · Consensus signal: none
GenreCandidate signal: Other · Consensus signal: Other
Teacher disagreement score0.527
Threshold uncertainty score1.000

Codex and Gemma teacher scores by category

CategoryCodexGemma
Metaresearch0.0000.000
Meta-epidemiology (narrow)0.0000.000
Meta-epidemiology (broad)0.0000.001
Bibliometrics0.0000.000
Science and technology studies0.0000.000
Scholarly communication0.0000.000
Open science0.0010.000
Research integrity0.0020.001
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 head0.016
GPT teacher head0.220
Teacher spread0.204 · 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