WEST NILE VIRUS HELICASE PEROTEIN 3D structure of the hepatitis c virus rna helicase domain as a reference was obtained by X-ray crystallography (PDB ID: 1HEI)(1. J.VIROL. V.70,1706,1996 / 2. ARCH.BIOCHEM.BIOPHYS,V.323,47,1995). This model is West Nile virus helicase protein constructed by FAMS Ligand&Complex based on 1HEI. HEADER WEST NILE VIRUS HELICASE PROTEIN 05-SPT-03 REMARK CHAIN_A AAF18443 (1685-1998)(NS3) REMARK RNA Figure legend: RNA is shown by CPK or stick