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).
In the secretory pathway, protein sorting, mainly in trans-Golgi Network (TGN), but also in other compartments, underlies cargo recognition by various carriers to assure the specificity of final localization.