steiner tree graph generated by SteinerTree_cons function.
consSTRINGIDs
first element of list generated by getConsensusSTRINGIDs
function; a data.frame including the proteins to be considered as terminal
nodes in Steiner tree with colnames ST_proteins and the corresponding STRING
IDs in column 'STRING_id'.
tps
integer specifying current timepoint under consideration.
string_db
second element of list generated by getConsensusSTRINGIDs
function; species table (for human) of STRING database.