| 1SZA: reference: Recognition of RNA polymerase II carboxy-terminal domain by 3'-RNA-processing factors., Meinhart A, Cramer P, Nature. 2004 Jul 8;430(6996):223-6. PMID: 15241417 |
This OCA 
Structure page
uses Jmol,
developed by the Jmol Development Team
(documentation).