Figure S1 - Crystal Structure of Two Anti-Porphyrin Antibodies with Peroxidase Activity

Detection of twinning and determination of the twin fraction in the 14H7 crystals. A Estimation of the twin fraction α by Britton plot analysis. The percentage of negative intensities after detwinning is plotted as a function of the assumed value of α. The estimated value of α is extrapolated from the linear fit (green line). B Estimation of the twin fraction α using the H-plot. The cumulative fractional intensity difference of acentric twin-related intensities H {H = |I(h 1) − I(h 2)|/[I(h 1) + I(h 2)]} is plotted against H. The initial slope (green line) of the distribution is a measure of α. (DOCX)