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The virus is internalized and the nucleocapsid is released into the cytoplasm of the hepatocyte after binding with the receptor. The NS5B protein, which is an RNA-dependent RNA polymerase, catalyzes hepatitis C virus replication. [10] The hepatitis C virus can cause acute infection but most patients are asymptomatic upon exposure.
HCV genome. Nonstructural protein 5B (NS5B) is a viral protein found in the hepatitis C virus (HCV). [1] It is an RNA-dependent RNA polymerase, having the key function of replicating HCV's viral RNA by using the viral positive RNA strand as a template to catalyze the polymerization of ribonucleoside triphosphates (rNTP) during RNA replication.
HCV is a positive-sense single-stranded RNA virus that has been demonstrated to replicate in the hepatocytes of both humans and chimpanzees. A single HCV polyprotein is translated, and then cleaved by cellular and viral proteases into three structural proteins (core, E1, and E2) and seven nonstructural proteins (p7, NS2, NS3, NS4A, NS4B, NS5A, and NS5B).
It is also possible that NS5A is a critical component during HCV replication and subcellular localization, which may shed light on the poorly understood HCV life cycle. [ 1 ] [ 4 ] Additionally, NS5A has been shown to modulate the polymerase activity of NS5B , an RNA-dependent RNA polymerase (RdRp) . [ 3 ]
The first protease inhibitor approved by the U.S. Food and Drug Administration (FDA). Ritonavir: Norvir: AbbVie: U.S. patent 5,541,206: March 1, 1996: AbbVie was part of Abbott Laboratories when patent was granted. As well as being a protease inhibitor in its own right, ritonavir inhibits the breakdown of other protease inhibitors.
7 Hepatitis C antivirals. 8 Stimulants. 9 NSAIDs. ... Beclabuvir (NS5B RNA polymerase inhibitor) Dasabuvir (NS5B RNA polymerase inhibitor) Grazoprevir (NS3/4A ...
Pages in category "NS5B (polymerase) inhibitors" The following 13 pages are in this category, out of 13 total. This list may not reflect recent changes. ...
The hepatitis C virus (HCV) [3] is a small (55–65 nm in size), enveloped, positive-sense single-stranded RNA virus of the family Flaviviridae. The hepatitis C virus is the cause of hepatitis C and some cancers such as liver cancer ( hepatocellular carcinoma , abbreviated HCC) and lymphomas in humans.
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