Hansruedi Stettler et al.
Biochemistry, 44(14), 5339-5345 (2005-04-06)
Proprotein convertase PC3 (also known as PC1) is an endopeptidase involved in proteolytic processing of peptide hormone precursors in granules of the regulated secretory pathway of endocrine cells. Lacking any extended hydrophobic segments, PC3 was considered to be a secretory