SubSearch
From NMPDR Wiki
Subsystems are organized in broad functional categories. The subsystem search tool displays the subsystems and their categories in the form of a tree, as shown below.
Click on a plus sign to open a branch of the tree. Click on a minus sign to collapse it. Click on the name of a subsystem to see the subsystem's page in the NMPDR.
The actual subsystem search allows you to do a keyword search for genes restricted to a single subsystem or subsystem category. Use the radio buttons to select the subsystem or category.

