Figure 2

Integration greatly decreases redundancy compared to searching source databases independently. Whereas the reduction of redundancy upon integrating data from 19 databases is less prominent for relations (i.e. the different source databases have little overlap (~12%) of relational information), it is very significant especially for the compound space (~67% reduction). Given are number of gene and compound entries and their relations before and after integration together with the difference between these values (the number of entries merged to already existing ones).