摘要:
The invention relates to a method for producing a recombinant hepatitis C virus-like particle comprising introducing into (i) a cell which autonomously replicates an RNA replicon including a base sequence encoding a 5’ noncoding region, NS3 protein, NS4A protein, NS4B protein, NS5A protein and NS5B protein in the genomic RNA derived from a hepatitis C virus strain and a base sequence including a 3’ noncoding region, (ii) a vector expressing Core protein, E1 protein, E2 protein and p7 protein derived from the same or a different hepatitis C virus strain in (i), culturing the cell and collecting the produced virus-like particle and a recombinant hepatitis C virus particle produced by the method.
摘要:
An objective of this invention is to provide an HCV strain with a high capacity for virus production in a cell culture system. This invention provides a nucleic acid encoding a polyprotein precursor of the hepatitis C virus JFH1 strain having one or more amino acid substitutions, wherein the polyprotein precursor comprises at least substitution of glutamine at position 862 with arginine, as determined with reference to the amino acid sequence as shown in SEQ ID NO: 2 in the Sequence Listing.
摘要:
The invention relates to a method for producing an infectious hepatitis C virus (HCV) particle, comprising the step of introducing an expression vector containing a DNA fragment including a DNA sequence encoding a 5’ noncoding region and a structural protein of HCV and an arbitrary nonstructural protein and a DNA sequence encoding a nonstructural protein and a 3’ noncoding region derived from HCV JFH1 strain downstream of the RNA polymerase I promoter and further containing a DNA fragment including the RNA polymerase I terminator downstream thereof into a cell which allows HCV proliferation.
摘要:
It is intended to provide a modified hepatitis C virus genomic RNA having a base sequence containing the 5’-nontranslated region, core protein-encoding sequence, E1 protein-encoding sequence, p7 protein-encoding sequence, E2 protein-encoding sequence, NS2 protein-encoding sequence, NS3 protein-encoding sequence, NS4A protein-encoding sequence, NS4B protein-encoding sequence, NS5A protein-encoding sequence, NS5B protein-encoding sequence and 3’-nontransalated region of two or more hepatitis C virus genomic RNAs and having autonomous replicative competence. In particular, a modified hepatitis C virus genomic RNA which has acquired the autonomous replicative competence via the substitution of a partial RNA sequence encoding NS3 to NS4, NS5A and NS5B proteins in a hepatitis C virus genomic RNA by the partial RNA sequence encoding NS3 to NS4, NS5A and NS5B proteins of JFH1 strain represented by SEQ ID NO:1.