Table 1. Specific activities of the α₂βγ, αβ and αγ enzymes.

Enzyme	Specific activity (μmol/min/mg)
	This work	Ehrlich et al.2	Soundar et al.19	Kim et al.22
α2βγ	20.2 ± 0.3	15–20	21.7	0.2359 ± 0.0320
αβ	3.33 ± 0.13	2.9		0.0046 ± 0.0002
αγ	7.27 ± 0.31	7.8		0.0255 ± 0.0007

The specific activities of the enzymes were measured at the standard conditions: 33 mM Tris-acetate, pH 7.4, 80 mM ICT, 2 mM MnCl₂, and 3.2 mM NAD.