>tr|Q3B8M0|Q3B8M0_XENLA maleylacetoacetate isomerase OS=Xenopus laevis GN=gstz1.L MAALGKPLLYGYFRSSCTWRVRIALAFKGIEYDQQAINLVKDGGLQLSDEYKQVNPMQQV PALHIDGVTLSQSLAIIEYLEETRPNPPLFPREPKKRAQVRMISDQIASGIQPLQNLCVL QKIGETKQEWAKHFITRGFQALEKMLQITSGSYCVGDEVTVADLCLVPQVANAVRFKVDL SPYPTIVRINESLLQMEAFQVSHPSRQPDTPEELRA