3.1.1.77	glycoprotein	-	246554	
3.1.1.77	glycoprotein	both subunits glycosylated	246549	
3.1.1.77	glycoprotein	five potential glycosylation sites, one on the small and four on the large subunit	246546	
3.1.1.77	glycoprotein	glycosylation of the small subunit not essential for activity	246552	
3.1.1.77	glycoprotein	only three glycosylation sites in large subunit	246554	
3.1.1.77	glycoprotein	small subunit not glycosylated	246554	
3.1.1.77	proteolytic modification	proximal tubule cells secrete the pro-enzyme, which can be taken up by bladder cells and processed to the heterodimeric, more enzymatically active, mature enzyme form	665166