Structure of PG-containing glycoconjugates from wild-type and LPG1- and LPG2-deficient mutants. Structures enclosed within the dashed boxes designate those domains specifically affected by the respective mutations in either LPG1 or LPG2. PI, phosphatidylinositol; GIPL, glycoinositol phospholipid; GPI, glycophosphatidylinositol; sAP, secreted acid phosphatase; PPG, proteophosphoglycan.