ID 1.2.1.98 DE 2-hydroxy-2-methylpropanal dehydrogenase. CA 2-hydroxy-2-methylpropanal + H2O + NAD(+) = 2-hydroxy-2-methylpropanoate CA + 2 H(+) + NADH. CC -!- This bacterial enzyme is involved in the degradation pathways of the CC alkene 2-methylpropene and the fuel oxygenate methyl tert-butyl ether CC (MTBE), a widely occurring groundwater contaminant. DR Q3YAT5, MPDC_MYCAO ; //