نتایج جستجو برای: hepatitis c virus e1 protein e2 protein
تعداد نتایج: 2413599 فیلتر نتایج به سال:
Infectious Hepatitis C Virus Pseudo-particles Containing Functional E1–E2 Envelope Protein Complexes
The study of hepatitis C virus (HCV), a major cause of chronic liver disease, has been hampered by the lack of a cell culture system supporting its replication. Here, we have successfully generated infectious pseudo-particles that were assembled by displaying unmodified and functional HCV glycoproteins onto retroviral and lentiviral core particles. The presence of a green fluorescent protein ma...
The density of circulating hepatitis C virus (HCV) particles in the blood of chronically infected patients is very heterogeneous. The very low density of some particles has been attributed to an association of the virus with apolipoprotein B (apoB) positive and triglyceride rich lipoproteins (TRL) likely resulting in hybrid lipoproteins known as lipo-viro-particles (LVP) containing the viral en...
Rubella virus contains three structural proteins, capsid, E2, and E1. E2 and E1 are type I membrane glycoproteins that form a heterodimer in the endoplasmic reticulum (ER) before they are transported to and retained in the Golgi complex, where virus assembly occurs. The bulk of unassembled E2 and E1 subunits are not transported to the Golgi complex. We have recently shown that E2 contains a Gol...
Despite extensive research, many details about the structure and functions of hepatitis C virus (HCV) glycoproteins E1 and E2 are not fully understood, and their crystal structure remains to be determined. We applied linker-scanning mutagenesis to generate a panel of 34 mutants, each containing an insertion of 5 aa at a random position within the E1E2 sequence. The mutated glycoproteins were an...
We developed an immunogen to stimulate multivalent immunity against hepatitis B surface antigen (HBsAg) and hepatitis B core antigens (HBcAg). Immune responses specific for both HBsAg and HBcAg play an important role in controlling the infection. HBsAg-specific antibodies mediate elimination of virions at an early stage of infection and prevent the spread of virus. The immunogen was constructed...
A hepatitis C virus (HCV) E2 variant encompassing amino acids 458 to 680 was expressed in Escherichia coli. The recombinant product (His-E2680) was immunoidentified as a 30-kD protein using the serum from a patient with chronic hepatitis C, and was purified using Ni-NTA chelate chromatography. When HCV-positive human sera were tested with the His-E2680 protein, 39% of them showed anti-E2 reacti...
Introduction: Hepatitis E virus (HEV) is a fecal-oral transmitting virus which causes a chronic liver disease. ORF2 is an immunogen capsid protein of HEV that has been proposed to be used for Hepatitis E vaccine design. It is a 660-amino acid protein which includes an immunogenic region (residues 112-607). This protein has been expressed in complete and truncated forms, using different expressi...
Characterization of antibodies induced by vaccination with hepatitis C virus envelope glycoproteins.
Hepatitis C virus (HCV) envelope glycoproteins E1 and E2 were used with MF59 adjuvant as a candidate vaccine for a phase 1 safety and immunogenicity trial. Ten of 41 vaccinee serum samples displayed a neutralization titer of > or =1:20 against vesicular stomatitis virus (VSV)-HCV pseudotype, 15 of 36 serum samples tested had a neutralization titer of > or =1:400 against human immunodeficiency v...
PURPOSE Chikungunya virus (CHIKV) causes endemic or epidemic outbreaks of CHIKV fever, which is a mosquitoe- transmitted viral disease in Africa, India, South-East Asia, and recently Southern Europe. Currently, serological diagnostic tests such as hemagglutination inhibition test (HI test), in-house IgM capture enzyme-linked immunosorbent assays (ELISA), and indirect immunofluorescence test wer...
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