5-hydroxymethylcytosine marks promoters in colon that resist DNA hypermethylation in cancer

^*Li Ka Shing Centre, CRUK Cambridge Institute, Robinson Way, Cambridge CB2 0RE, UK,^†Department of Pathology, Addenbrooke's Hospital, Box 231, Level 3, Hill Road, Cambridge CB2 0QQ, UK,^‡Faculty of Medicine, Laboratory of Cancer Epigenetics, Universite Libre de Bruxelles, Route de Lennik 808, Brussels 1070, Belgium