Figure 9From: Algorithms for effective querying of compound graph-based pathway databasesUpstream. (left) Up (green) and down (cyan) stream of protein "a" (yellow) in a partial mechanistic pathway. (right) Unambiguous positive upstream of node "a" (yellow) contains node "c" (green) only, as node "b" is on both positive and negative paths leading to node "a".Back to article page