Figure 4.

Oxidation of d-serine by DAAO in the presence of LG72 protein. Activity is expressed as amount H₂O₂ generated as a result of oxidation of d-serine. The concentration of DAAO was constant (45 ng/μl), the concentrations of pLG72 varied from 0 to 680 ng/μl, and BSA was added to maintain the equal total protein concentration. The curves represent the mean of the three measures for each incubation point. Confidence interval (“error bars”) = mean (three measures) plus or less 1.96. *, Standard deviation (three measures).