丙型肝炎病毒蛋白 (HCV Proteins)

Hepatitis C Genome polyprotein (His) is expressed in E. coli expression system with N-6xHis tag. The predicted molecular weight is 71.3 kDa and the accession number is S4UAW6.

Hepatitis C virus (HCV-1a) E2 Protein (His) is expressed in HEK293 mammalian cells with His tag. The predicted molecular weight is 32 kDa and the accession number is NP_751921.1.

Hepatitis C virus Envelope Glycoprotein E1 HCV-E1 (subtype 1b, strain HC-J4) Protein (His) is expressed in HEK293 mammalian cells with His tag. The predicted molecular weight is 18.7 kDa and the accession number is AAC15725.1.

Hepatitis C virus (HCV) (serotype 1c,isolate HC-G9) E2 Protein (His) is expressed in HEK293 mammalian cells with His tag. The predicted molecular weight is 32.2 kDa and the accession number is BAA03581.1.

Hepatitis C virus (HCV) (serotype 1b, isolate HC-J4) Envelope E2 Protein (His) is expressed in HEK293 mammalian cells with His tag. The predicted molecular weight is 32.4 kDa and the accession number is AAC15723.1.

HCV NS3 displays three enzymatic activities: serine protease, NTPase, and RNA helicase. HCV NS3 serine protease, in association with NS4A, is responsible for the cleavages of NS3-NS4A, NS4A-NS4B, NS4B-NS5A, and NS5A-NS5B. HCV NS3 RNA helicase binds to RNA and unwinds dsRNA in the 3' to 5' direction, and likely RNA stable secondary structure in the template strand (By similarity). Cleaves and inhibits the host antiviral protein MAVS. NS3 NS4A complex also prevents phosphorylation of human IRF3, thus preventing the establishment of dsRNA induced antiviral state. One of the HCV proteases, NS3-4A serine protease, is a non-covalent heterodimer consisting of a catalytic subunit (the N-terminal one-third of NS3 protein) and an activating cofactor (NS4A protein) and is responsible for cleavage at four sites of the HCV polyprotein.