1. Chromatin and Gene Expression, Babraham Institute, Babraham, Cambridge CB22 3AT, United Kingdom
2. Karolinska Institutet, Department of Biosciences and Nutrition, and University College Södertörn, Novum S-141 57 Huddinge, Sweden
3. Proteomics Group, Babraham Institute, Babraham, Cambridge CB22 3AT, United Kingdom
4. Department of Biochemistry and Biophysics, Oregon State University, Corvallis, Oregon