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Effect of exogenous folic acid supplementation on intracellular folate content and polyglutamate distribution in K562 cells. Intracellular folate (A) content (B) Gluavg and (C) glutamate distribution profiles were determined in K562 cells grown for 24-hours with supplemental folic acid concentrations ranging from 0 to 20 μM. Data represent a single experimental evaluation.
