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Additional file 1 of Epigenetic rewriting at centromeric DNA repeats leads to increased chromatin accessibility and chromosomal instability

2021· article· en· W6977342619 on OpenAlexaff

Bibliographic record

VenueFigshare · 2021
Typearticle
Languageen
FieldBiochemistry, Genetics and Molecular Biology
TopicGenomics and Chromatin Dynamics
Canadian institutionsUniversity of Toronto
Fundersnot available
KeywordsChromatinChromosomeDNAChromosome instabilityCentromereEpigeneticsDNA replicationCell

Abstract

fetched live from OpenAlex

Additional file 1: Figure S1. Visualization of the TALE fusions proteins and CENP-A. U2OS cells expressing either the TALE-demethylase (top), its point mutant (middle) or the TALE-GFP (bottom). TALE proteins are visualized using an anti-HA antibody (shown in green), CENP-A is revealed with an anti-CENP-A antibody (shown in red) and DNA was stained using Hoechst. Maximum projections are shown for each cell. Scale bar, 10 μm. Figure S2. Characterization of the overlap of TALE-fusion proteins with CENP-A and D7Z1. Percentage of overlap between TALE and CENP-A foci (left, n=277 foci) and TALE and D7Z1 foci (right, n=316 foci). The value presented is the volume of the TALE covered by the other structure (in %). Figure S3. Chromosome instability in TALE-demethylase cell line. (A) The volumes of nuclei are represented according to the number of chromosomes 11 (top two panels, green) or 7 (bottom two panels, orange) in the inducible cell line expressing the TALE-KMD4B, with or without doxycycline treatment. The muted area around the solid line represents the standard error while the black dots are the individual data points (nuclei volume) for each number of chromosomes. (B) The number of chromosomes 7 and 11 are determined in a thousand nuclei of the TALE-KDM4B cell line, after 48 h of growth with or without doxycycline treatment. The histogram represents the number of nuclei counted according to the number of chromosomes 7 (green) or 11 (orange) in each nucleus. Figure S4. Effects of TALE-demethylase expression on CENP-A loading. (A) Boxplots showing the signal intensity (left panel) and the volume (right panel) of CENP-A foci associated with the TALE-demethylase foci (blue) (n=186 foci) or with the TALE-KDM4B-H188A foci (orange) (n=82). (B) Boxplot showing the percentage of overlap of TALE-demethylase foci by CENP-A foci (blue) (n=186 foci) and the overlap of TALE-KDM4B-H188A foci by CENP-A foci (orange) (n=82). The value presented is the percentage of the volume of the TALE covered by CENP-A. Table S1. Chromosome instability upon removal of chromosome 7 pericentromeric H3K9me3. Number of nuclei containing either 4 chromosomes 7 and 11 or a different number. Nuclei containing more or less than 4 chromosomes are considered products of aberrant mitosis and proof of genomic instability. Cells grown with doxycycline for 48h (+) are expressing either the TALE-demethylase or the TALE-GFP (control), while cells grown without (-) do not express any construct. Table S2. Plasmids used in this study.

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)0.002
metaresearch head score (Gemma)0.028
Version: metacan-v3-hybrid-931329e0061cValidation status: machine_predicted_unvalidated
Candidate categoriesInsufficient payload (model declined to judge)
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Not applicable · Consensus signal: Not applicable
GenreCandidate signal: Other · Consensus signal: none
Teacher disagreement score0.896
Threshold uncertainty score0.149

Distilled classifier scores by category (both heads)

CategoryCodexGemma
Metaresearch0.0020.028
Meta-epidemiology (narrow)0.0020.001
Meta-epidemiology (broad)0.0020.001
Bibliometrics0.0030.005
Science and technology studies0.0020.000
Scholarly communication0.0030.003
Open science0.0030.001
Research integrity0.0020.002
Insufficient payload (model declined to judge)0.8960.173

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 head0.011
GPT teacher head0.226
Teacher spread0.215 · 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.

Study designNot applicable
Domainnot available
GenreOther

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
Published2021
Admission routes1
Has abstractyes

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