[1] CUNY Mt Sinai Sch Med, Dept Human Genet, New York, NY 10029 USA
[2] Univ Washington, Dept Biol Struct, Hlth Sci Ctr, Seattle, WA 98195 USA
[3] Univ Tubingen, Inst Physiol, D-72076 Tubingen, Germany
[4] Univ Tubingen, Sekt Sensor Biophys, D-72076 Tubingen, Germany