A, Co-IP assay of HDA15-TAP with TOC1-GFP and 5X-GFP in N. benthamiana. HDA15-TAP was immunoprecipitated with IgG resins and digested by HRV-3C protease. HDA15 and TOC1 were detected by α-MYC and α-GFP, respectively. B, Quantification of the interaction strength in A. Results from 5 independent trials were averaged. Error bar indicates SEM, asterisk indicates significant difference (*p<0.05, student's t test). 