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The pH dependence of CsCAT2 uptake of theanine in 22Δ10α. (A) Theanine uptake by CsCAT2 at different pH values; uptake at pH 4 serve as 100%. (B) Theanine uptake by CsCAT2 in the presence of CCCP, DNP, and DEPC. The result was expressed as mean ± SD (n = 3).
