January 2009706622 1191374MINT (36)5 February 2009515112 6531210DIP (37)26 January 200911081326739NCG21 June 200911 98868 49819 886Data from five different sources are integrated in NCG. To derive a non-redundant version of the network, proteins are counted as number of non-redundant Entrez IDs. The number of interactions refers to non-redundant primary interactions; the independent reports refer to the number of published papers that define the interactions.
