| 3CLJ: reference: The Nrd1-Nab3-Sen1 termination complex interacts with the Ser5-phosphorylated RNA polymerase II C-terminal domain., Vasiljeva L, Kim M, Mutschler H, Buratowski S, Meinhart A, Nat Struct Mol Biol. 2008 Aug;15(8):795-804. Epub 2008 Jul 27. PMID: 18660819 |
This OCA 
Structure page
uses Jmol,
developed by the Jmol Development Team
(documentation).