The MATCHMAKER GAL4 Two-Hybrid System 3 (Clontech) was used to examine the interaction between proteins. Appropriate amounts of bacterial solution were spread on SD/-Leu-Trp (SD/-L-T) media and incubated inverted at 30 °C for 3 days. The monoclonal antibody was picked up from SD/Leu-Trp-His-Ade (SD/-L-T-H-A) medium and resuspended in water, then diluted to a 1, 10−1, 10−2, 10−3 gradient, spotted on SD/-L-T-H-A medium, cultured at 30 °C and observed after one week52 (link).
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