Positive test controls include: HT-29, HepG2. Immunogen sequence: IRGHYEAKQG GFLPGGGSLH STMTPHGPDA DCFEKASKVK LAPERIADGT MAFMFESSLS LAVTKWGLKA SRCLDENYHK CWEPLKSHFT PNSRNPAEPN. This gene encodes the enzyme homogentisate 1,2 dioxygenase. This enzyme is in