Ghamari A, van de Corput MP, Thongjuea S, van Cappellen WA, van Ijcken W, van Haren J, Soler E, Eick D, Lenhard B, Grosveld FG

Genes Dev. 2013 Apr 1;27(7):767-77. doi: 10.1101/gad.216200.113

In vivo live imaging of RNA polymerase II transcription factories in primary cells.

Only initiated (not elongating) complexes are within the factories.