Figure 1From: Analytical model of peptide mass cluster centres with applicationsThe peptide mass rule. Panel A: Scatterplot of m(M)- m(N)against the m(N)mass (m(M)- monoisotopic mass, m(N)- nominalmass). Red dashed line – the model determined by linear regression with intercept fixed at 0. The magenta line represents the cluster centres predicted by linear regression.Back to article page