Expression, Purification, and Characterisation of Dehydroquinate Synthase from Pyrococcus furiosus

Table 3

Activation of EDTA-treated DHQS by various divalent metal ions. The activity of EDTA-treated PfuDHQS in the presence of a range of other divalent metal ions is given as a percentage of the activity seen for the Cd²⁺-activated enzyme.

Divalent metal ion	PfuDHQS activity (%)
Cd	100
Co	82
Zn	71
Mn	41
Ni	3
Fe	2
Cu	2
Ca	2
Hg	2
Mg	1
Ba	0
Cr	0
No metal	1
No metal/EDTA treated	0.1