Biochemical Characterisation of Phage Pseudomurein Endoisopeptidases PeiW and PeiP Using Synthetic Peptides

Table 1

Activation (% activity) of PeiW or PeiP by divalent metal ions in a synthetic peptide assay. 100% activity corresponded to 0.245 U mg⁻¹ for PeiW and 0.115 U mg⁻¹ for PeiP.

Metal ion present	% activity
	PeiW	PeiP
Ca^2+	100	100
Mn^2+	78	8
Mg^2+	66	14
Ba^2+	51	12
Ni^2+	42	3
Co^2+	0	0
Cu^2+	0	0
EDTA	0	0