Table 1.

Michaelis–Menten constants for each MnmC catalysed reaction

Reaction	Km (nM)	kcat (s−1)	kcat/Km (µM−1 s−1)
cmnm5s2U → nm5s2U	600 ± 200	0.34 ± 0.04	0.56
nm5s2U → mnm5s2U	70 ± 40	0.31 ± 0.05	4.5