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).
Those metabolic reactions involving sulfur - a component of methionine and cysteine amino acids and of co-enzymes and vitamins. It also serves as electron donor in anaerobic respiration. Microorganisms and plants can incorporate inorganic sulfate into bioinorganic compounds; higher organisms derive them from diet.