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).
A condition resulting from alterations in the metabolism of tetrahydrobiopterin (BH4), an essential cofactor for the activity of many enzymes. Diet and supplements, such as administration of L-Dopa, may diminish the outcomes of the condition.