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. 2024 Apr 10;43(11):2166–2197. doi: 10.1038/s44318-024-00093-6

Figure 4. DNAJC9 depletion stabilizes CENP-A and contributes to its enrichment in chromatin.

Figure 4

(A) Transcript levels of CENP-A are not altered in DNAJC9-depleted HeLa YFP-CENP-ALow cells. Bar graphs showing mean RNA levels of CENP-A and DNAJC9 normalized to GAPDH in control and DNAJC9-depleted cells using RT-qPCR. Mean values with standard deviation from three biological replicates were plotted and P values were calculated from two-way ANOVA with Sidak’s multiple correction test. (B) Stability of YFP-CENP-A is higher in DNAJC9-depleted HeLa YFP-CENP-ALow cells. Western blot of whole-cell extracts showing DNAJC9 depletion and YFP-CENP-A levels in control or DNAJC9-depleted cells treated with 100 µg/ml cycloheximide for the indicated time periods. Alpha-tubulin was used as the loading control. (C) Line graph for results shown in B. Mean with SD from three biological replicates were plotted. (D) Enrichment of CENP-A in chromatin fractions from DNAJC9-depleted HeLa YFP-CENP-ALow cells. Western blot of soluble and chromatin fractions prepared from control or DNAJC9-depleted cells showing levels of YFP-CENP-A and endogenous CENP-A on chromatin in HeLa YFP-CENP-ALow. Alpha-tubulin and H2B were used as markers of soluble and chromatin fractions, respectively. (E) Bar graphs showing the levels of YFP-CENP-A or endogenous CENP-A on the chromatin normalized to H2B control in the indicated conditions. Mean with SD were plotted from three biological replicates. P values were calculated using unpaired t test. Source data are available online for this figure.