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).
Alterations in the visual phototransduction signaling have been linked to a number conditions such as retinits pigmentosa (RP), Bardet-Biedl syndrome (BBS), macular degeneration and others. More than 200 point mutations in rhodopsin account for ~25% of the autosomal dominant type of RP.