Table 1.

Michaelis–Menten kinetic parameters of PydD (error values reported are the S.E. for the fits)

Enzyme	Substrate	kcat	Km	kcat/Km
		s−1	mm	m−1 s−1
PydD	β-Alanine	5.6 ± 0.2	2.3 ± 0.4	2400 ± 500
	2-Oxoglutarate	5.6 ± 0.2	3.3 ± 0.3	1700 ± 200
PydD	β-Alanine; pyruvate	1.25 ± 0.06	46 ± 5 (pyruvate)	27 ± 3
PydD	Taurine; 2-oxoglutarate	0.51 ± 0.02	12 ± 2 (taurine)	41 ± 7