1. Department of MicrobiologyBMGE, Institut Pasteur Paris 75015 France
2. Center for BiotechnologyUniversität Bielefeld Bielefeld 33615 Germany
3. Department of Bioscience and BiotechnologyGraduate School of Bioresource and Bioenvironmental Sciences, Kyushu University Fukuoka Fukuoka 819‐0395 Japan
4. National Center for Biotechnology Information, National Library of MedicineNational Institutes of Health Bethesda MD 20892 USA