KLK3 GI:71834855 prostate specific antigen isoform 4 preproprotein 1 mwvpvvfltl svtwigaapl ilsrivggwe cekhsqpwqv lvasrgravc 50 51 ggvlvhpqwv ltaahcirkp gddsshdlml lrlsepaelt davkvmdlpt 100 101 qepalgttcy asgwgsiepe efltpkklqc vdlhvisndv caqvhpqkvt 150 151 kfmlcagrwt ggkstcsgds ggplvcngvl qgitswgsep calperpsly 200 201 tkvvhyrkwi kdtivanp