4.2.1.80 0.03 - 4-hydroxy-2-oxopentanoate pH 7, native enzyme 648398 4.2.1.80 0.0317 - 2-hydroxypent-2,4-dienoate activated by Mg2+ 661714 4.2.1.80 0.0386 - 2-hydroxypent-2,4-dienoate activated by Mn2+ 661714 4.2.1.80 0.0408 - 2-hydroxyhexa-2,4-dienoate activated by Mg2+ 661714 4.2.1.80 0.041 - 2-hydroxypentadienoic acid pH 6 648401 4.2.1.80 0.0459 - 5-chloro-2-hydroxypent-2,4-dienoate activated by Mg2+ 661714