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Expression and activity of aminopeptidase N (APN from a variety of cell lines: (A) Expression of APN from a variety of cell lines was analyzed by flow cytometry. (B) Enzymatic activity of APN was determined in cell lysates (10 μg protein). (C) Effect of basic fibroblast growth factor (bFGF) on APN activity in human umbilical vein endothelial cells (HUVEC).
