After a group leader position at Erasmus University Medical Center in Rotterdam, Peter Fraser has moved to the Babraham Institute in Cambridge in 1999 to become Head of the Laboratory of Chromatin and Gene Expression. He is currently Head of the Nuclear Dynamics Program at the same institute. His group research is focused on various levels of chromatin, chromosome and nuclear structure, from individual nucleosome modifications to the dynamic 3D structure of chromosomes and their inter-relationships in the nucleus and how they affect genome functions.