3.4.21.B12 glycoprotein 2 N-glycosylated forms of different MW: 34 kDa and 37 kDa 647339 3.4.21.B12 glycoprotein 3 potential N-linked glycosylation sites: N134, N169, and N214 of the nucleotide sequence -, 647333 3.4.21.B12 glycoprotein deglycosylation abolishes enzyme activity 647339 3.4.21.B12 glycoprotein one glycosylation site 691153 3.4.21.B12 proteolytic modification KLK4 is secreted as an inactive zymogen, pro-KLK4 693377 3.4.21.B12 proteolytic modification no activation of recombinant zymogen by native KLK4 enzyme in vitro 647339 3.4.21.B12 proteolytic modification recombinant chimeric enzyme with exchange of the pro-piece of the zymogen for that of prostate-specific antigen PSA to create an activation site suceptible for trypsin-type proteases proteolytically activates itself 647338 3.4.21.B12 proteolytic modification recombinant zymogen can be activated in vitro by thermolysin and by recombinant pig enamelysin 647339 3.4.21.B12 proteolytic modification the enzyme performs proteolytic autoactivation 731763