The Complex Portal is a manually curated, encyclopaedic resource of macromolecular complexes from a number of key model organisms. All data is freely available for search and download. To perform a search for macromolecular complexes use the search box below.

Search in Complex Portal



  • To search for a list of terms copy/paste all terms into the search box using either spaces or line breaks to separate them.
  • By default we search for entries containing ANY of the search terms, if you want to be more specific add AND between your search terms.
  • Search for isoforms of 'Q07817' by using 'Q07817*'


Data Content

  • Complexes: 1298
  • Species: 14
  • Interactor types: 8
  • Biological role types: 14


Manually curated content is added to IntAct Complex Portal by curators at the EMBL-EBI and the following organisations:

Citing Complex Portal

The complex portal - an encyclopaedia of macromolecular complexes. Meldal BH et al [PMID: 25313161]
Nucl. Acids Res. (2014) doi: 10.1093/nar/gku975
[Abstract] [Full Text]