The Pre-Initiation Complex (PIC), which consists of Mediator, TFIIA, TFIIB, TFIID, TFIIE, TFIIF, TFIIH, and RNA polymerase II (pol II), governs the expression of all protein-coding and most non-coding ...

A new method for mapping torsion provides insights into the ways that the genome responds to the torsion generated by RNA polymerase II.