[1] Florida State Univ, Mol Biophys Program, Tallahassee, FL 32306 USA
[2] Florida State Univ, Dept Chem & Biochem, Tallahassee, FL 32306 USA
[3] Florida State Univ, Dept Biol Sci, Program Neurosci, B-157, Tallahassee, FL 32306 USA
[4] Univ Queensland, Inst Mol Biosci, Brisbane, Qld, Australia