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. 2021 May 25;12:687406. doi: 10.3389/fpls.2021.687406

FIGURE 8.

FIGURE 8

Swapping of DNA-binding domain (DBD) and activation domain (AD) of ORCA3 and 4. In order to get insight into the role of the AD in the synergistic up-regulation of MIA target genes, the respective DBDs and ADs of ORCA3 and 4 were swapped. (A) Cartoon showing the domain organization of ORCA3 and 4 and the respective chimeric proteins. (B) Combinatorial overexpression of CrMYC2aD126N with ORCA3, 4 or chimeric proteins ORCA3-ORCA4 or ORCA4-ORCA3. These results suggest that the AD of ORCA3 improves the synergistic up-regulation of target genes. Cells labeled with different letters represent statistically significant differences (P < 0.05, ANOVA with Tukey’s correction for multiple comparisons).