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. Author manuscript; available in PMC: 2011 Apr 6.
Published in final edited form as: Biochemistry. 2010 Apr 6;49(13):2925–2931. doi: 10.1021/bi9021439

Figure 2. Assessment of CL-PCFT activity.

Figure 2

CL-PCFT and WT-PCFT expression vectors were transiently transfected into HeLa cells. PCFT activity was determined 48 hr later by assessment of [3H]methotrexate influx (0.5 μM) at pH 5.5 over 2 min. Data are the mean ± SEM from 6 independent experiments.