Functional enrichment of platelets. (A) Biological processes were tested for enrichment in platelets. The top most significantly enriched specific terms were plotted against the negative log10 of the P value and colored according to their general functional category. Number of platelet proteins and total proteins for each term are given in parentheses. There is enrichment of terms related to transport, membrane organization, actin-filament based processes, and GTPase-mediated signal transduction. (B) KEGG pathway enrichment. Endocytosis, regulation of actin cytoskeleton, and focal adhesion were highly enriched for platelet proteins.