NS3 protease
Identification of the sequence on NS4A required for enhanced cleavage of the NS5A/5B site by hepatitis C virus NS3 protease.
... HCV protease, like for other serine proteases belonging to the chymotrypsin family ...the NS3/4A, NS4A/4B, NS4B/5A, and NS5A/5B sites was abolished (13, 17, ...the NS3 protease activity for ...
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Favipiravir Derivatives as Potential Inhibitors for NS3 Protease of West Nile Virus
... infection. NS3 protease of WNV has potential to work as drug target protein since it was involved in fundamental of viral ...of protease could be considered as a strategy for treatment of WNV ...
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Generation and Characterization of a Hepatitis C Virus NS3 Protease-Dependent Bovine Viral Diarrhea Virus
... HCV NS3 and BVDV core fusion proteins. A single-chain HCV NS3 protease domain (H77 isolate), in which the NS4A cofactor peptide (GSVVIVGRIVLS) was fused in frame to the N terminus of the ...
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Crystal Structure of the NS3 Protease-Helicase from Dengue Virus
... cis protease cleavage sites have been identified recently ...of NS3 by the viral protease corresponding to Arg-458 to Gly-459 in helicase subdomain 2 has been ...of NS3 in the flavivirus life ...
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Chimeric Sindbis viruses dependent on the NS3 protease of hepatitis C virus.
... of NS3 has been extensively charac- terized by using in vitro translation and expression in eu- karyotes and bacteria (3, 18, 20, 34, 35, 45, 48, ...to NS3, the NS4A peptide is required for cleavage at the ...
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Dengue Virus NS2B/NS3 Protease Inhibitors Exploiting the Prime Side
... NS2/NS3 protease is a promising target for inhibitor ...DENV protease active site, resulting in highly hydrophilic and nonspecific ...DENV protease binding affinity, as revealed by engineer- ing ...
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Stimulation of Hepatitis C Virus (HCV) Nonstructural Protein 3 (NS3) Helicase Activity by the NS3 Protease Domain and by HCV RNA-Dependent RNA Polymerase
... the protease domain was not due to activation of the NTPase ...the protease domain can directly activate the helicase without an effect on the NTPase ...functional NS3-RNA complex formation (42), an ...
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Isolation and Characterization of Monoclonal Antibodies That Inhibit Hepatitis C Virus NS3 Protease
... the NS3/4A site is an intramolecular reaction, as evidenced by the absence of detectable NS3/4A precursors after a brief pulse-labeling period, the inability to cleave the NS3/4A site in trans, and ...
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PCR Based In Vitro Synthesis of Hepatitis C Virus NS3 Protease for Rapid Phenotypic Resistance Testing of Protease Inhibitors
... HCV NS3 protease by use of an Escherichia coli S30 extract system for linear templates (Pro- mega Corporation, Madison, WI), telaprevir (or boceprevir) susceptibil- ity of the synthesized NS3 ...
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Mutagenesis of the NS3 Protease of Dengue Virus Type 2
... flavivirus protease is composed of two viral proteins, NS2B and ...of NS3 contains sequence and structural motifs characteristic of bacterial and cellular trypsin-like ...of NS3 which contains the ...
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Formation of the flavivirus envelope: role of the viral NS2B-NS3 protease.
... gesting the possibility that, at least in vitro, the RRS site could be used by the WN protease. To examine the possible utiliza- tion of both cleavage sites, we introduced mutations at either or both sites (Fig. ...
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Upregulation of signalase processing and induction of prM-E secretion by the flavivirus NS2B-NS3 protease: roles of protease components.
... flavivirus protease consists of two proteins (6, 10, 12, 32), we were interested in investigating the role that each component protein plays in the above ...the protease complex with the C-prM ...the ...
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In Vitro Susceptibility of Hepatitis C Virus Genotype 1 through 6 Clinical Isolates to the Pangenotypic NS3/4A Inhibitor Voxilaprevir
... the NS3/4A protease of hepatitis C virus ...including NS3/4A protease in- hibitors such as ...The NS3 protease regions of viruses belonging to 6 genotypes and 29 subtypes from ...
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New developments in the management of hepatitis C virus infection: focus on boceprevir
... HCV genotype 1-infected patients, 0.9% and 0.7% of viruses carried the V36M or the R155K variants, respectively, and patients with the R155K virus appeared to have slower viral load declines during TVR + peg-IFN- α + RBV ...
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Structural Analysis and Molecular Modeling Studies of Fatty Acids and Peptides Binding with NS2B/NS3 Dengue Protease
... domain NS3 fragment which is 180 amino acid in length is present on the N-terminal of the total 618 residue length multi domain NS3 [14- ...the NS3 protease activity ...optimal protease ...
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Engineered Small-Molecule Control of Influenza A Virus Replication
... (HCV) NS3 protease (NS3p) followed by the NS4a helical domain, which functionally serves as a degron domain, triggering polyu- biquitination and proteasomal ...the NS3 cleavage site. Under normal ...
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NS3-4A of hepatitis C virus is a chymotrypsin-like protease.
... HCV protease NS3-4A by investigat- ing the effects of well-known protease inhibitors on trans-cleav- age reactions of NS3 D C-4A at NS4A/4B, 4B/5A, and 5A/5B ...of NS3-4A in ...HCV ...
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Structure of the Flavivirus Helicase: Implications for Catalytic Activity, Protein Interactions, and Proteolytic Processing
... of NS3 protease and helicase ...(right) NS3 are labeled to show that the NS3-NS4A junction of YFV is too far from the protease active site for cleavage in ...
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In Vitro Selection and Characterization of Hepatitis C Virus Serine Protease Variants Resistant to an Active-Site Peptide Inhibitor
... the NS3-4A protease leads to the accumulation of resistant replicons containing specific protease mutations which make the enzyme less sensitive to ...the NS3 protease domain is ...
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Uncoupling of Protease trans-Cleavage and Helicase Activities in Pestivirus NS3
... how NS3 protease possibly facilitates the helicase function through RNA binding, we generated a model of the full-length NS3 in complex with a partially single-stranded RNA (pssRNA) taken from a ...
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