PPDK levels inr C3 plants like Arabidopsis thaliana and Hordeum vulgare are very low and PPDK protein is very dilute in most tissues of C3 plants. To perform detection in C3 plants leaf proteins needs to be concentrated before western blot, Chastain et al. (2002).
PPDK(pyruvate, phosphodikinase 1) is involved in the formation of phosphoenolpyruvate and is activated by photoinduced dephosphorylation. Dark-induced inhibition of phosphorylation. PPDK is a low abundance enzyme in C3 plants and is a key enzyme in C4 photosynthesis.
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