Fig. 6
From: Alignment behaviors of short peptides provide a roadmap for functional profiling of metagenomic data
Corrected abundance profiles of KO-families using “Filter-enabled frequency weighted” method. Artificial boost in abundance values of KO-families due to peptides from “unknown protein space” is corrected by extending our frequency-weighted method and enable it to filter peptides with characteristics of those from hypothetical proteins. New abundance profile of the same test data used in Fig. 5 is plotted in this figure (the plot can be compared directly to the plot in Fig. 5). Red line reflects the true correspondence values