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).
Thyroglobulin, produced by the follicular cells of thyroid gland is used to produce the thyroid hormones via a number of steps. Thyroglobulin contains some 100-120 tyrosine residues, of which only a small fraction is used to produce thyroid hormones. Usually there are 5 to 6 molecules of either thyroxine (T4) and triiodothyronine (T3) derived from each molecule of thyroglobulin.