protein protein interaction database

protein-protein interaction database
APID http://bioinfow.dep.usal.es/apid/index.htm

IntAct
http://www.ebi.ac.uk/intact/search/do/search?searchString=EBI-539447
http://www.ebi.ac.uk/intact/search/do/search?searchString=EBI-1034130

Collections http://proteome.wayne.edu/PIDBL.html