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Record W2075806483 · doi:10.1002/psc.388

A comparison of three‐ and four‐helix bundle TASP molecules

2002· article· en· W2075806483 on OpenAlex
Ashley S. Causton, John C. Sherman

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.
fundA Canadian funder is recorded on the work.

Bibliographic record

VenueJournal of Peptide Science · 2002
Typearticle
Languageen
FieldBiochemistry, Genetics and Molecular Biology
TopicChemical Synthesis and Analysis
Canadian institutionsBC Studies
FundersNatural Sciences and Engineering Research Council of Canada
KeywordsHelix bundleHelix (gastropod)ChemistryCrystallographyMonomerGuanidineDenaturation (fissile materials)PeptideMoleculeStereochemistryBundlePeptide sequenceCircular dichroismProtein structureBiochemistryMaterials scienceOrganic chemistryBiologyPolymer

Abstract

fetched live from OpenAlex

We have designed, synthesized and characterized three- and four-helix bundle template-assembled synthetic proteins CTASPs). The TASPs were synthesized using disulphide bonds between the peptides and either the cyclotribenzylene (CTB) template, or the cavitand (BOWL) template, to form the three- and four helix bundles, respectively. The TASPs were constructed using peptides that were linked via their N-termini (peptide CGGGEELLKKXEELLKKG, where X = L, I, Nle or V), or via their C-termini (peptide GEELLKKLEELLKKGGGC). Each TASP was assayed for its structure, stability, 'native-like' characteristics and whether it was a monomer in solution. All TASPs were found to be highly helical, and highly resistant to chemical denaturation using guanidine hydrochloride (GnHCl). Analysis of the GnHCl-induced unfolding curves of the different TASPs demonstrated stability differences based on the number of helices in the bundle, the end of the helix that was attached to the template, and the identity of the core amino acid. The TASPs all had molten-globule structure, which is (generally) consistent with a degenerate sequence in the core. The four-helix bundle TASPs appeared to be monomers in solution, whereas there is some evidence that the three-helix bundle TASPs are weakly self-associating.

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 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 score0.008
Threshold uncertainty score0.200

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 integrity0.0000.000
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 head0.032
GPT teacher head0.287
Teacher spread0.255 · 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