[1] Univ Cambridge, Gurdon Inst, Cambridge CB2 1QN, England
[2] Rockefeller Univ, Lab Chromatin Biol, New York, NY 10021 USA
[3] Wistar Inst Anat & Biol, Gene Express & Regulat Program, Philadelphia, PA 19104 USA
[4] Univ Laval, Canc Res Ctr, Quebec City, PQ G1R 2J6, Canada
[5] Univ Texas, MD Anderson Canc Ctr, Houston, TX 77030 USA
[6] Res Inst Mol Pathol, A-1030 Vienna, Austria
[7] Univ Calif San Diego, Dept Biol, La Jolla, CA 92093 USA
[8] NYU, Dept Biochem, New York, NY 10016 USA
[9] Harvard Univ, Sch Med, Dept Pathol, Boston, MA 02115 USA
[10] Ctr Gene Regulat, Barcelona 08003, Spain
[11] Stowers Inst Med Res, Kansas City, MO 64110 USA
[12] Univ N Carolina, Lineberger Comprehens Canc Ctr, Chapel Hill, NC 27599 USA
[13] Univ N Carolina, Dept Biochem & Biophys, Chapel Hill, NC 27599 USA