[Reversed-phase high performance liquid chromatographic behavior of unfolding procedure of Huwentoxin-V].
Bibliographic record
Abstract
Huwentoxin-V (HWTX-V) is an insecticidal peptide purified from the venom of spider Selnocosmia huwena. HWTX-V contains 33 amino acid residues, including six cysteine residues that form three pairs of disulfide bond. A method for measuring unfolding intermediates of HWTX-V by reversed-phase high performance liquid chromatography (HPLC) has been established. HWTX-V was first denatured over 30 min in the guanidine hydrochloride, and then reduced by using tris-(2-carboxyethyl)-phosphine at pH 3.0 over 12 min. All intermediates were separated on a C18 column (4.6 mm i. d. x 390 mm) with a linear gradient elution of acetonitrile containing 0.1% (v/v) trifluoroacetic acid, and identified by matrix assisted laser desorption ionization time of flight mass spectrometry (MALDI-TOF MS). Finally, these intermediates were carboxamidomethylated by iodoacetamide at the concentration of 0.5 mol/L and verified by MALDI-TOF MS. The diverse chromatographic retention behaviors for intermediates of Huwentoxin-V are discussed. This method is helpful to reveal the conformation changes in the procedures of proteins/peptides unfolding.
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How this classification was reachedexpand
Full frame machine prediction
Teacher imitationNot 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.
Distilled classifier scores by category (both heads)
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.000 | 0.001 |
| Meta-epidemiology (narrow) | 0.001 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.001 | 0.000 |
| Science and technology studies | 0.001 | 0.000 |
| Scholarly communication | 0.000 | 0.001 |
| Open science | 0.001 | 0.000 |
| Research integrity | 0.001 | 0.001 |
| Insufficient payload (model declined to judge) | 0.003 | 0.003 |
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.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from itClassification
machine, unvalidatedMachine predicted; a candidate call from one source (direct Gemma or distilled Codex), not a consensus.
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".