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The role of chaperones in the initial steps of bacterial oxidoreductase maturation

2012· article· en· W3173870302 on OpenAlexaff
T. Leach, Raymond J. Turner

Bibliographic record

VenueThe FASEB Journal · 2012
Typearticle
Languageen
FieldMaterials Science
TopicEnzyme Structure and Function
Canadian institutionsUniversity of Calgary
Fundersnot available
KeywordsOxidoreductaseBiochemistryCofactorEnzymeMolybdenum cofactorPeptideBioenergeticsBiologyReductaseChemistryProtein structureMitochondrion

Abstract

fetched live from OpenAlex

Bacterial oxidoreductases play a key role in anaerobic respiration and represent a group of enzymes with complex maturation pathways. A group of specific chaperones, or redox enzyme maturation proteins (REMP), have an essential role in the maturation of bioenergetics enzymes. While their role has yet to be defined, REMPs have been shown to interact tightly with the amino terminal signal peptide of oxidoreductase subunits. DmsD, the REMP associated with the oxidoreductase dimethyl sulfoxide (DMSO) reductase, has been putatively shown to interact with a number of proteins. These include the general chaperones DnaK, and Trigger Factor (TF), and also include MoeB, a protein involved in the molybdenum cofactor biosynthesis. An in vitro characterization of these protein‐protein interactions will improve our understanding of the early steps of oxidoreductase maturation, as well as provide further insight into the role of REMPs. Studies to date were done using an in vitro modified far‐western technique, a robust technique that quantitatively assesses protein‐protein interactions between folded and pure proteins. An interaction was found between MoeB and DmsD, but this technique failed to show an interaction between DnaK or TF and DmsD. Alternatively, both DnaK and TF were shown to interact with the DMSO reductase signal peptide. Size exclusion chromatography is used to confirm protein‐protein interactions as well as to determine if these proteins can interact concurrently or if binding excludes one or more proteins.

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.

How this classification was reachedexpand

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 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 score0.010
Threshold uncertainty score0.249

Codex and Gemma teacher scores by category

CategoryCodexGemma
Metaresearch0.0010.000
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 head0.015
GPT teacher head0.249
Teacher spread0.234 · 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

Classification

machine, unvalidated

Machine predicted; a candidate call from one teacher head, not a consensus.

The models applied no category: nothing in the taxonomy fit this work.
Study designBench or experimental
Domainnot available
GenreEmpirical

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".

Quick stats

Citations0
Published2012
Admission routes1
Has abstractyes

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