Fig 1: HDAC3 knockdown affects acetylation levels of histone H3 in T. castaneum larvae. A The knockdown of HDAC1 and HDAC3 increased acetylation levels of histone H3. Total protein extracted from dsHDAC1, dsHDAC3 or dsmalE injected larvae were separated on SDS-PAGE gels, transferred to western blots, and hybridized with antibodies recognizing Acetyl-Histone H3 (Antibody Sampler Kit # 9927-Cell Signaling. ß-actin served as a loading control. The HRP-linked IgG (#7074-Cell Signaling) was used as a secondary antibody. The lysine acetylation status of histone H3K9 and H3K27 increased in HDAC3 knockdown larvae. The images of complete Western blots are shown in Additional file 5. B Loading control protein, ß-Actin, was used to normalize the levels of H3K9 and H3K27. Band intensities were determined by Image-J software. The fold change in treatments compared to control was represented in the graph
Fig 2: HDAC11 knockdown affects acetylation levels of histone H3 in T. castaneum. (A) The total protein extracted from dsHDAC11 or dsmalE injected larvae were resolved on SDS-PAGE gels, transferred to western blots, and probed with antibodies recognizing Acetyl-Histone H3 (Antibody Sampler Kit # 9927-Cell Signaling (H3K9, H3K14, H3K18, H3K27, and H3K56). ß-actin served as a loading control. The HRP-linked IgG (#7074-Cell Signaling) was used as a secondary antibody. Band densities were determined by Image-J software and normalized with loading control protein-ß-Actin. The Mean + SE (n = 3) band densities are shown. Means marked with different letters are significantly different from each other, P = 0.05 by ANOVA. (B) Acetylated-Lysine (Ac-K2-100) MultiMabTM Rabbit mAb mix #9814 was used to detect acetylation levels of proteins extracted from TcA cells exposed to dsHDAC11 or dsmalE. The acetylation levels of histone H3K9, H3K18 and H3K27 increased in HDAC11 knockdown cells were detected as described in Figure 7A. The band densities were quantified and plotted as described in Figure 7A. The Mean + SE (n = 3) band densities are shown. Means marked with different letters are significantly different from each other, P = 0.05 by ANOVA.
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