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

Figure 7

Thermostability of (a) PeiW and (b) PeiP in the presence and absence of Ca²⁺. (a) Thermostability of PeiW, in the presence of Ca²⁺, ■ 75°C, ● 80°C, and ▲ 85°C, and in the absence of Ca²⁺, □ 75°C, ○ 80°C. (b) Thermostability of PeiP, in the presence of Ca²⁺, ■ 70°C, ● 75°C, and in the absence of Ca²⁺, □ 70°C. Initial specific activity values (U mg⁻¹) were 0.253, PeiW and 0.0429, PeiP.

(a)

(b)