<p><b>Copyright information:</b></p><p>Taken from "Reactome: a knowledge base of biologic pathways and processes"</p><p>http://genomebiology.com/2007/8/3/R39</p><p>Genome Biology 2007;8(3):R39-R39.</p><p>Published online 16 Mar 2007</p><p>PMCID:PMC1868929.</p><p></p> Warmer colors indicate reactions found in distantly related species; cooler colors indicate reactions inferred only in closely related species