<unk> deficiency is a variant of Ehlers-Danlos syndrome.
Xylosylprotein 4-beta-galactosyltransferase 
Glycoprotein 2-beta-D-xylosyltransferase
Leader peptidase A
Agalsidase beta
Glucuronosyltransferase
Pegaspargase
Saruplase
Sacrosidase