Table 4: Kinetic parameters for the hydrolysis of Arg-Arg-NA and metal contents of various metal-DPP IIIs.

Enzyme
(×10−5 M)

(s−1)
(×104 M−1 s−1)Metal content
(mol/mol of protein)

Zn2+-DPP III8.1
(±1.0)
7.1
(±0.2)
8.80.8
(±0.1)
Co2+-DPP III8.2
(±0.9)
7.0
(±0.1)
8.51.0
(±0.1)
Cu2+-DPP III9.9
(±1.1)
10.1
(±0.3)
10.21.1
(±0.1)