1. Department of Biology, University of Florida, Gainesville, FL 32611, USA
2. Center for Smell and Taste (UFCST), University of Florida, Gainesville, FL 32610, USA
3. Department of Molecular Biology, Umeå University, 901 87 Umeå, Sweden
4. Department of Biology, New York University, New York, NY 10003, USA
5. Department of Biology, Bucknell University, Lewisburg, PA 17837, USA
6. Guangdong Province Key Laboratory of Microbial Signals and Disease Control, Integrative Microbiology Research Centre, South China Agricultural University, 510642 Guangzhou, China
7. Howard Hughes Medical Institute (HHMI), Department of Biochemistry and Molecular Pharmacology, New York University School of Medicine, New York, NY 10016, USA