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Record W2162636735 · doi:10.1042/ba20030081

Caeruloplasmin sterilized by γ‐irradiation in the presence of <scp>l</scp>‐tyrosine maintains structural and catalytic characteristics

2003· article· en· W2162636735 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

VenueBiotechnology and Applied Biochemistry · 2003
Typearticle
Languageen
FieldBiochemistry, Genetics and Molecular Biology
TopicPolyamine Metabolism and Applications
Canadian institutionsInstitut National de la Recherche ScientifiqueUniversité du Québec à Montréal
Fundersnot available
KeywordsCeruloplasminTyrosineIrradiationChemistryOxidase testEnzymeProteolysisBiochemistry

Abstract

fetched live from OpenAlex

It was previously shown that protein aggregation induced by gamma-irradiation can be prevented by L-tyrosine, even when irradiation was done in solution at doses as high as 10 kGy. It is now reported that caeruloplasmin irradiated at low to moderate doses appears more resistant to trypsin-mediated proteolysis than native caeruloplasmin. Ceruloplasmin presents an irradiation-dose-dependent decrease of oxidase activity and a slight increase of ferroxidase activity at low irradiation doses (2 kGy), followed by a decrease at high doses (4-8 kGy). In all cases, the catalytic activities are higher when caeruloplasmin is irradiated under tyrosine protection. Irradiated caeruloplasmin in the presence of tyrosine preserves its oxidase and ferroxidase activities. Caeruloplasmin irradiated in solution at a dose of 2-3 kGy and higher, in the presence and absence of L-tyrosine, remained sterile during at least 8 weeks of storage at 4 degrees C, as evaluated by the plate-count-agar method for assessing total viable lactic acid bacteria content after incubation for 48 h at 30 degrees C.

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 score0.011
Threshold uncertainty score0.523

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 head0.004
GPT teacher head0.208
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