Affiliation: | 1. Zentrum für Bioinformatik, Universit?t des Saarlandes, 66041 Saarbrücken, Germany, Fax: (+49)?681‐302‐64180 http://gepard.bioinformatik.uni‐saarland.de;2. Computational Sciences and Mathematics Division, Pacific Northwest National Laboratory, Richland, WA 99352, USA |