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Record W2081573734 · doi:10.1107/s090904950302421x

Hydration structures in proteins and neutron diffraction experiment on dissimilatory sulfite reductase D (DsrD)

2003· article· en· W2081573734 on OpenAlexaff
Toshiyuki Chatake, Andreas Ostermann, Kazuo Kurihara, F. Parak, Nobuhiro Mizuno, Gerrit Voordouw, Yoshiki Higuchi, Ichiro Tanaka, Nobuo Niimura

Bibliographic record

VenueJournal of Synchrotron Radiation · 2003
Typearticle
Languageen
FieldMaterials Science
TopicEnzyme Structure and Function
Canadian institutionsUniversity of Calgary
FundersMinistry of Education, Culture, Sports, Science and Technology
KeywordsNeutron diffractionHydrogen bondChemistryCrystallographyMoleculeNeutronIntermolecular forceSulfite reductaseSulfiteDNAReductaseBiochemistryCrystal structurePhysicsEnzymeOrganic chemistry

Abstract

fetched live from OpenAlex

Neutron crystallography can provide a substantial amount of information about the hydration of proteins. The hydration patterns of three proteins, whose structures have been solved at 1.5 or 1.6 A resolution using our BIX-type diffractometers, show interesting features. The water molecules adopt a variety of shapes in the neutron Fourier maps, revealing details of intermolecular hydrogen-bond formation and dynamics of hydration. In addition, the neutron diffraction study of a DNA-binding protein, dissimilatory sulfite reductase D (DsrD) is briefly described, and some preliminary results are presented. This topic is of interest because it is well known that hydrogen bonds play important roles in DNA-protein recognition.

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 machine prediction

Teacher imitation

Not 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.

metaresearch head score (Codex)0.000
metaresearch head score (Gemma)0.000
Version: metacan-v3-hybrid-931329e0061cValidation 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 score0.002
Threshold uncertainty score0.004

Distilled classifier scores by category (both heads)

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 head0.008
GPT teacher head0.245
Teacher spread0.236 · 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 source (direct Gemma or distilled Codex), 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

Citations7
Published2003
Admission routes1
Has abstractyes

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