Metabolic networks of seminal and spermatecal fluid. Visualization of spermathecal and seminal fluid metabolic networks based on the proteins identified in this study and Baer et al. . Colored nodes (rounded squares) represent enzymes in different functional categories, metabolites are shown as small grey circles, and reactions are shown as connecting lines between the enzyme and metabolite nodes. Additional data file 3 provides Enzyme Commission (EC) numbers and metabolite names for all features that are noted. The seven enzymes in common between the two datasets are highlighted by increased size, and red outlines indicate nodes with a consistent spatial arrangement in both networks.