Author Affiliations

D. B. Shapiro,^1,2,5,6 M. F. Maestre,^1,3 W. M. McClain,^1,7 P. G. Hull,^1,8 Y. Shi,^1,7,9 M. S. Quinby-Hunt,^1,2 J. E. Hearst,^1,4,5 and A. J. Hunt^1,2

¹When this work was performed the following authors were with the University of California, Berkeley, Berkeley, California 94720

²Energy and Environment Division, Lawrence Berkeley Laboratory

³Cell and Molecular Biology Division, Lawrence Berkeley Laboratory

⁴Chemical Biodynamics Division, Lawrence Berkeley Laboratory.

⁵Graduate Group in Biophysics, University of California, Berkeley

⁶D. B. Shapiro is now with the Department of Chemistry, University of California Santa Cruz, Santa Cruz, California 95064.

⁷Department of Chemistry, Wayne State University, Detroit, Michigan 48202

⁸Department of Physics, Tennessee State University, Nashville, Tennessee, 37209-1561.

⁹Y. Shi is now with the Department of Chemistry, University of California, Berkeley, Berkeley, California 94720.