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. 2016 Dec 26;34(3):692–706. doi: 10.1093/molbev/msw268

Fig. 2.

Fig. 2.

Correlation between ω and protein abundance for secreted and nonsecreted proteins expressed at different human organs/tissues. Although nonsecreted proteins show a strong negative correlation, secreted proteins exhibit weaker correlations. Significant Spearman correlation coefficients are marked with an asterisk. ρ, Spearman’s rank correlation coefficient; ppm, parts per million.