Hi, I am wondering if there is any advantage to using 12 mm cells vs. the 3 mm cells for velocity experiments with a protein-DNA complex that is ~ 1Mda. Michael S. Cosgrove, Ph.D. Assistant Professor Syracuse University Department of Biology 406D Lyman Hall 108 College Place Syracuse, NY 13244 Phone: (315) 443-2964 Fax: (315) 443-2156 Email: mscosgro at syr.edu