[1] Vanderbilt Univ, Med Ctr, Cell & Dev Biol, Nashville, TN USA
[2] Yokohama City Univ, Dept Supramol Biol, Yokohama, Kanagawa 232, Japan
[3] Florida State Univ, Natl High Magnet Field Lab, Tallahassee, FL 32306 USA
[4] Florida State Univ, Dept Biol Sci, Tallahassee, FL 32306 USA
[5] Univ Warwick, Ctr Mechanochem Cell Biol, Coventry CV4 7AL, W Midlands, England