Berkeley Bioinformatics and Ontology Project, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA.|Berkeley Bioinformatics and Ontology Project, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA.|Berkeley Bioinformatics and Ontology Project, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA.|Berkeley Bioinformatics and Ontology Project, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA.|Berkeley Bioinformatics and Ontology Project, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA.