The FT-IR results show the major functional group present in PPy-TiO2 nanocomposites.
The major functional group of remarkably up-regulated genes was in a glycosyl hydrolase family such as polygalacturonase.
The carboxyl group bears a negative charge, and therefore it is the major functional group in the adsorption of cationic dyes.
The major functional group that was differentially expressed in both skin and phelloderm was stress and defense related genes.
The first latent factor found through SPC didn't show clear enrichment of any major functional group (Additional file 1, Table S11).
The next major functional group in the hippocampus is related to proteins linked to the stress response and is indicative of the adverse effects of DE-71 exposure.
According to the GO (Gene ontology) categories, in group 1, the 1519 identified DE genes were categorized into three major functional groups: cellular component, molecular function, and biological process.
Based on the expression levels, we ranked the Group I genes by quartiles, and categorized them into major functional groups in comparison with unexpressed genes in Group II.
From the putative functions of these 89 genes, we found 6 major functional groups: transcription factors (13 genes), phytohormone metabolism, signaling and response (6 genes), cell wall-degrading or modification (5 genes), defense function (8 genes), lipid metabolism (6 genes) and transporter/channel proteins (6 genes) (Table 1).
As with the human CYP genes, the CYP genes in zebrafish occur in two major functional groups: those families that include enzymes involved primarily in endogenous functions (CYP families 5-51; Table 1); and those that include enzymes involved heavily in oxidation of xenobiotics (CYP families 1-3, and to a lesser degree family 4; Table 2).
We identified 6,718 human membrane proteins and classified the majority of them into 234 families of which 151 belong to the three major functional groups: receptors (63 groups, 1,352 members), transporters (89 groups, 817 members) or enzymes (7 groups, 533 members).
