Table 2.

Observed KIEs on k_obs1 values from Table 1.

E,S/E,Sa	KIEobs1
H,H/H,D	2.71±0.18
H,H/D,H	1.23±0.08
H,H/D,D	4.90±0.51
D,H/D,D	3.98±0.40
H,D/D,D	1.81±0.18
(H,D/D,D)/(H,H/D,H)	1.47±0.24

^[a]The same nomenclature as Table 1 is used, for example, H,H/H,D is the substrate 1° KIE.