Node information dialog. The node information dialog is obtained by selecting a node, right-clicking and selecting "Show info..." from the pop-up menu. The dialog is also reachable via the Tools menu. The dialog is used to enter a label for the node, shown on the drawing panel, and to select the type of molecule, which in turn changes the display properties of the node. The user may also enter a compartment type (Not specified, Cellular, or Intracellular) and a compartment (restricted to Gene Ontology cellular components [33, 34]). The "Select genes..." and "Select compound..." buttons bring up dialogs allowing search and selection of gene symbols and compounds in the Pathway database for assignment to the node. Other tabs allow the user to enter comments into the pathway for the node, to examine a heat map or line chart of data and numeric values, and to set the visibility of the data on the main drawing panel for the compound or gene symbols. The node information dialog for Arachidonic acid is shown.