preferred_name: 2-4 nt.backtracking of Pol II complex on the template leading to elongation pausing (Bos taurus)
preferred_name_lc: 2-4 nt.backtracking of pol ii complex on the template leading to elongation pausing (bos taurus)
label: 2-4 nt.backtracking of Pol II complex on the template leading to elongation pausing (Bos taurus)
label_lc: 2-4 nt.backtracking of pol ii complex on the template leading to elongation pausing (bos taurus)