Utility of consolidated interaction data. The black node represents a complex record describing the alternative Ctf18-Dcc1-Ctf8-replication factor C complex (see HPRD complexes for EntrezGene 63922 and ). Open circles represent proteins. Dashed red lines represent membership of a protein in the complex. Solid lines represent binary protein-protein interactions that are found only in HPRD (thick black lines), only in OPHID (thick grey lines), or in more than two databases (thin black lines). The clustering coefficient of the complex is 0.57.