Regression with only the top 10%% most abundant proteins increased the correlation coefficient to 0.4 with the RNAseq data, whereas use of the lower 90%% of the abundant proteins reduced the correlation coefficient to 0.14 (data not shown).
Standard quantitative RNA sequencing of the same samples confirms expression of low abundant genes with an overall correlation coefficient of r = 0.87.
For the tannins and the most abundant phenolic, vanillin, the value of this correlation coefficient was lower (0.62 and 0.48, respectively) but still higher than for most hydrophobic components.
Feng et al. demonstrated an increased coefficient of variation when detecting low-abundant mRNA transcripts by tag-seq [ 15].
A more practical question, however, is whether such effects are strong and abundant enough to change the estimates of correlations coefficients in a large subset of genes.
SnS is a non-toxic material consisting of abundant and cheap elements, which possesses a high absorption coefficient (>10 cm–1) and a band gap (1.3 eV) optimal for photovoltaic applications.
The statistical analysis based on Spearman's rank correlation coefficients was carried out for the most abundant SE7D group.
However, we do observe that lowly expressed transcripts, irrespective of age, have much higher coefficients of variation as compared to highly abundant transcripts.
Like the yeast study of approximately 100 proteins [ 82], our study of approximately 1200 proteins indicated that there was an increased correlation coefficient if one enriched the data set with more abundant proteins.
Due to high octanol-air partitioning coefficients (Log KOA), many FRs are ubiquitous and abundant in house dust.
Instead of treating the HSI as a whole entity, MWPT-MWF firstly decomposes the HSI into several coefficient sets, also called components, by employing MWPT, therefore the abundant signal and the rare signal can be separated.
