5.3.1.17 4-deoxy-L-threo-hex-4-enopyranuronate degradation - - PWY-6507 5.3.1.17 Metabolic pathways - 01100 - 5.3.1.17 Pentose and glucuronate interconversions - 00040 - 5.3.1.17 sulfated glycosaminoglycan metabolism sulfated glycosaminoglycan metabolism - -