The Pathway Ontology (PW), is currently being developed at the Rat Genome Database. For more information about this vocabulary, please see Petri et al. The rat genome database pathway portal. Database (Oxford). 2011 Apr 8;2011:bar010. Print 2011 or contact us (http://rgd.mcw.edu/contact/index.shtml).
Glucagon signaling responds to low levels of circulating glucose to stimulate its release. The action of glucagon signaling is counter-regulatory to the action of insulin and it plays an essential role in glucose homeostasis.