mgr i was specific to 2-oxoaldehydes [ glyoxal , methylglyoxal ( km = 15.4 mm ) and phenylglyoxal ] , whereas mgr ii was active on both 2-oxoaldehydes [ glyoxal ( km = 10 mm ) , methylglyoxal ( km = 1.43 mm ) , phenylglyoxal ( km = 4.35 mm ) and 4,5-dioxovalerate ] and some aldehydes ( propionaldehyde and acetaldehyde ) .
C0017992
glyoxal
C0034338
methylglyoxal