Co‐IP assay was performed in accordance with our previous study(Huang et al., 2019 (link)). In brief, after the supernatants of brain samples were collected, the lysates were incubated with MeCP2 antibody (Santa Cruz Biotechnology, Texas, USA) and protein A/G agarose gel overnight, followed by SDS‐PAGE resolution and Western blot assay. CREB1 antibody (Cell Signaling Technology, Inc., Danvers, USA) was used to measure the interaction of the two proteins.
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