1. Department of Chemistry and Biochemistry University of California Los Angeles CA 90095 USA
2. Chemical Sciences Division Lawrence Livermore National Laboratory Livermore CA 94550 USA
3. California Institute for Quantitative Biosciences (QB3) University of California Berkeley CA 94720 USA
4. Advanced Photon Source Argonne National Laboratory Argonne IL 60439 USA
5. Lawrence Livermore National Laboratory Physical and Life Science Directorate Livermore CA 94550 USA
6. Department of Molecular and Cell Biology University of California Berkeley CA 94720 USA
7. Department of Plant and Microbial Biology University of California Berkeley CA 94720 USA