Create gene-to-peptide edges from a PTM edge file

Generates a new edge data frame linking each PTM node ("GENE site") to its parent gene node, for use in combined gene/PTM Cytoscape networks.

Usage

make.genepep.edges(peptide.edgefile)

Arguments

peptide.edgefile

A data frame edge list whose node names follow the "GENE site" PTM naming convention.

Value

A data frame with columns source, target, Weight, and interaction ("peptide").