Proteoglycans (PG) Sythesized and assembled in ER 1)Polysaccharides are assembled to core protein in ER lumen by glycosyltransferases,which in turn add monosaccharide to the specific tetrasaccharide structure on serine; 2)Polymorphology of amino acid sequence and sugar chain; 3)Some PG are integrated members of plasma membrane (Syndecan,蛋白多糖). This document is produced by trial version of Print2Flash.Visit www.print2flash.com for more information