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Oscillation of Krebs cycle protein concentrations. (A) Acetyl-CoA, (B) citrate, (C) isocitrate, (D) α-ketoglutarate, (E) succinyl-CoA, (F) succinate, (G) fumarate, (H) L-malate and (I) oxaloacetate concentrations in response to electrical stimulus at frequencies of 1, 2 and 3 Hz.
