Table 2.

Primary substrate KIEs for ^HAR and ^DAR (pH 8.9, 25 °C).

Substrate	Enzyme	${}_{}{}^{\mathrm{D}}\mathrm{k}_{\mathrm{cat}}^{}$	${}_{}{}^{\mathrm{D}}({\mathrm{k}}_{\mathrm{cat}}∕{\mathrm{K}}_{\mathrm{m}})$
L-ala	HAR	1.56 ± 0.04	1.6 ± 0.2
	DAR	1.98 ± 0.07	3.8 ± 0.4
D-ala	HAR	1.53 ± 0.04	1.6 ± 0.2
	DAR	1.77 ± 0.04	3.5 ± 0.3