3.4.21.61 kexin; yeast KEX2 protease; proteinase yscF (gene name); prohormone-processing endoprotease; paired-basic endopeptidase; yeast cysteine proteinase F (misleading); andrenorphin-Gly-generating enzyme; endoproteinase Kex2p; gene KEX2 dibasic proteinase • • •