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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 3. Assessment of transport activities of PCFT mutants generated for topological studies.

Figure 3

CL-PCFT and mutant expression vectors were transiently transfected into HeLa cells. PCFT transport activities were assessed by 0.5 μM [3H]methotrexate influx over 2 min at pH 5.5. The data for each mutant is expressed as percentage of CL-PCFT activity. The results are the mean ± SEM from three independent experiments.