Princeton University, Lewis-Sigler Institute for Integrative Genomics, Princeton, New Jersey, United States of America.|Universität Basel, Biozentrum, Basel, Switzerland.|Universität Basel, Biozentrum, Basel, Switzerland.|Princeton University, Lewis-Sigler Institute for Integrative Genomics, Princeton, New Jersey, United States of America, Princeton University, Department of Molecular Biology, Princeton, New Jersey, United States of America.