Two examples of complexes suggested by PICT-Lcut2000. In the case of translation initiation/elongation factors, only novel interactions (interactions absent from PIT-Lcut600 ) are represented. A black number between two nodes stands for the reference in which the direct interaction of the two connected nodes is reported. A red number refers to the reference in which interaction of the two connected nodes with a third common protein is reported. 1, Gavin et al. ; 2, Collins et al. ; 3, Jao and Chen ; 4, Jansen et al. ; 5, Anand et al. .