与物种、缓冲液等有关.以下可作参考.
KMVALUE[mM]SUBSTRATEORGANISM
0.12-UreaSpirulinamaxima
0.16-UreaMorusalba
0.28-UreaRhodobactercapsulatus
0.3-UreaMycobacteriumtuberculosis
0.45-UreaZeamayspH5.5
0.48-UreaHelicobacterpylori
0.5-UreaGlycinemaxpH5.5
0.5-UreaZeamayspH8.8
0.83-UreaBostaurus
0.9-UreaGlycinemax
1.66-UreaStaphylococcusleeipH6.8