Sentence examples for quartile of expression from inspiring English sources

(e) Calculated the correlation between the top quartile of expression changes in a tup1Δ and the top quartile of binding for each transcription factor.

Indeed, expression levels of the majority of genes displaying divergent promoters were found to be above the 3rd quartile of expression value distribution in ΔRag thymocytes.

The high expression group in each plot (blue) accounts for the upper quartile of expression levels for a particular transcript and the low expression group (red) the remaining 75%%.

Using the RNA-seq data, nine of these genes were categorized into quartiles of expression, finding that all of the genes were expressed at high levels (Additional file 1: Figure S7).

Konecny et al. [ 23] reported, but did not characterize further, a significant positive correlation between these markers at the protein level among HER2-ve tumors within their cohort A. Harigopal et al. [ 33] also described a positive correlation between ER and HER2 detected with AQUA in tumors expressing ER and HER2 at the lowest quartiles of expression.

One aspect of their analysis contrasted male and female expression of Z-linked loci split by quartiles of expression magnitude.

Importantly, Harrison et al. defined quartiles of expression based solely on male expression; female expression was ignored when binning loci into subsets to assess dosage effects.

We further explored the effects of Z chromosome dosage by comparing the average expression of Z-linked genes in males and females, split by quartiles of expression magnitude.

Using these simulated values, we can split the data set into quartiles of expression and compare the distributions between sexes (fig. A2).

Following the approach of Harrison et al., binning loci by quartiles of expression should reveal increasingly greater relative expression in males with each additional quartile if translational saturation effects are occurring in the absence of dosage compensation.

When viewing this data using a Kaplan-Meier plot having split the samples based on quartiles of expression values, the difference in survival was associated only with the bottom quartile (low expressors) in the Tothill data set.