1C2P:
reference: Crystal structure of the RNA-dependent RNA polymerase from hepatitis C virus reveals a fully encircled active site., Lesburg CA, Cable MB, Ferrari E, Hong Z, Mannarino AF, Weber PC, Nat Struct Biol 1999 Oct;6(10):937-43. PMID: 10504728

This OCA Structure page
uses Jmol, developed by the Jmol Development Team (documentation).