Immunoblot analysis of total lysate, cytoplasmic and nucleoplasmic fractions was essentially performed as described [29 (link)]. Briefly, primary antibodies were polyclonal antibodies against HISTONE 3 (Agrisera, Vännäs, Sweden, AS10710; rabbit; dilution 1:5000), PHOSPHOENOLPYRUVATE CARBOXYLASE (Agrisera AS09458; rabbit; dilution 1:20,000) and SERRATE (Agrisera AS09532A; rabbit; dilution 1:1000). Secondary antibody was HRP-coupled anti-rabbit IgG (Sigma-Aldrich, Burlington, MA, USA, A0545; dilution 1:2500). Chemiluminescence detection of the immunoblots was done with Fusion-FX6 (Vilber) system.
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