Clamp M, Fry B, Kamal M, Xie X, Cuff J, Lin MF, Kellis M, Lindblad-Toh K & Lander ES 2007 Distinguishing protein-coding and noncoding genes in the human genome. PNAS 104:19428-19433. current catalogs list a total of ≈24,500 putative protei…