نتایج جستجو برای: orf2 protein

تعداد نتایج: 1234968  

ژورنال: Vaccine Research 2017

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...

Journal: :jundishapur journal of microbiology 0
fatemeh farshadpour department of microbiology and parasitology, school of medicine, bushehr university of medical sciences, bushehr, ir iran; health research institute, infectious and tropical disease research center, ahvaz jundishapur university of medical sciences, ahvaz, ir iran manoochehr makvandi health research institute, infectious and tropical disease research center, ahvaz jundishapur university of medical sciences, ahvaz, ir iran reza taherkhani department of microbiology and parasitology, school of medicine, bushehr university of medical sciences, bushehr, ir iran; persian gulf tropical medicine research center, bushehr university of medical sciences, bushehr, ir iran; department of microbiology, school of medicine, bushehr university of medical sciences, moallem st., bushehr, ir iran. tel: +98-9171712653, fax: +98-77125220814

conclusions the results of this study demonstrated that the tpasp-padre-truncated orf2 gene cassette and the truncated orf2 gene in recombinant plasmids are successfully expressed in eukaryotic cells. the immunogenicity of the two recombinant plasmids with different formulations will be evaluated as a novel dna vaccine in future investigations. results sequence analysis and bioinformatics studi...

Journal: :jundishapur journal of microbiology 0
manoochehr makvandi infectious and tropical disease research center, health research institute, department of virology, school of medicine, ahvaz jundishapur university of medical sciences, ahvaz, ir iran ali teimoori infectious and tropical disease research center, health research institute, department of virology, school of medicine, ahvaz jundishapur university of medical sciences, ahvaz, ir iran; research center for infectious diseases of digestive system; imam khomeini hospital, ahvaz jundishapur university of medical sciences, ahvaz, ir iran niloofar neisi infectious and tropical disease research center, health research institute, department of virology, school of medicine, ahvaz jundishapur university of medical sciences, ahvaz, ir iran; infectious and tropical disease research center, health research institute, department of virology, school of medicine, ahvaz jundishapur university of medical sciences, ahvaz, ir iran. tel: +98-9166136984, fax: +98-6133332036; +98-6133362411 alireza samarbafzadeh infectious and tropical disease research center, health research institute, department of virology, school of medicine, ahvaz jundishapur university of medical sciences, ahvaz, ir iran

conclusions the results of the present study showed that the baculovirus expression system (sf9 cells) was able to express truncated orf2 and truncated orf2-nsp4 proteins as a potential candidate vaccine. background the hepatitis e virus (hev) accounts for hepatitis e infection with relatively high mortality rate in pregnant women that can lead to fulminant hepatitis. the baculovirus expression...

2011
Lijo John Saijo Thomas Ottmar Herchenröder Brigitte M. Pützer Stephan Schaefer

BACKGROUND Hepatitis E virus (HEV) is a non-enveloped plus-strand RNA virus that causes acute hepatitis. The capsid protein open reading frame 2 (ORF2) is known to induce endoplasmic reticulum stress in ORF2 expressing cells. METHODOLOGY/PRINCIPAL FINDINGS In this study we found that HEV ORF2 activates the expression of the pro-apoptotic gene C/EBP homologous protein (CHOP). ORF2 stimulates t...

Journal: :Virology 2001
Q Liu S K Tikoo L A Babiuk

Infectious porcine circovirus type 2 (PCV2) was generated following transfection of a porcine retina cell line (VIDO R1) with cloned circovirus DNA. Expression of open reading frame 2 (ORF2) was detected at 24 h postinfection and onwards increasingly throughout the infection by Western blot analysis using ORF2 specific polyclonal antibody. Moreover, the ORF2 protein was also detected in purifie...

Journal: :jundishapur journal of microbiology 0
fatemeh farshadpour health research institute, infectious and tropical disease research center, ahvaz jundishapur university of medical sciences, ahvaz, ir iran; department of medical virology, school of medicine, ahvaz jundishapur university of medical sciences, ahvaz, ir iran reza taherkhani health research institute, infectious and tropical disease research center, ahvaz jundishapur university of medical sciences, ahvaz, ir iran; department of medical virology, school of medicine, ahvaz jundishapur university of medical sciences, ahvaz, ir iran manoochehr makvandi health research institute, infectious and tropical disease research center, ahvaz jundishapur university of medical sciences, ahvaz, ir iran; department of medical virology, school of medicine, ahvaz jundishapur university of medical sciences, ahvaz, ir iran; health research institute, infectious and tropical disease research center, ahvaz jundishapur university of medical sciences, ahvaz, ir iran; department of medical virology, school of medicine, ahvaz jundishapur university of medical sciences, ahvaz, ir iran. tel: +98-9166181683, fax: +98-6113738313 hamid rajabi memari department of agronomy and plant breeding, faculty of agriculture, ahvaz shahid chamran university, ahvaz, ir iran ali reza samarbafzadeh health research institute, infectious and tropical disease research center, ahvaz jundishapur university of medical sciences, ahvaz, ir iran; department of medical virology, school of medicine, ahvaz jundishapur university of medical sciences, ahvaz, ir iran

conclusions in this study, the optimized truncated orf2 protein was expressed in e. coli successfully and the highly purified protein was obtained, which can be a potential vaccine candidate and as an antigen in elisa to diagnose hev infections. results the subcloning was confirmed by pcr, restriction enzyme digestion, and dna sequencing of recombinant plasmid pet30a-orf2.2. the results obtaine...

Journal: :The Journal of biological chemistry 2002
Shweta Tyagi Hasan Korkaya Mohammad Zafrullah Shahid Jameel Sunil K Lal

Hepatitis E virus (HEV) is a human RNA virus containing three open reading frames. Of these, ORF1 encodes the viral nonstructural polyprotein; ORF2 encodes the major capsid protein, which exists in a glycosylated and non-glycosylated form; and ORF3 codes for a phosphoprotein of undefined function. Using fluorescence-based colocalization, yeast two-hybrid experiments, transiently transfected COS...

Journal: :The Journal of general virology 1995
K Sato N Yoshikawa T Takahashi H Taira

A putative movement protein of molecular mass 50 kDa encoded by the ORF2 of the apple chlorotic leaf spot virus (ACLSV) genome was expressed in Escherichia coli using an expression vector and was then used to produce an antiserum. Immunoblot analysis using an antiserum raised against this protein showed that the ORF2 protein of ACLSV was detected in both cell wall and cell membrane fractions pr...

Journal: :Applied and environmental microbiology 1997
M L Rosso A Delécluse

Two new crystal protein genes, cry19A and orf2, isolated from Bacillus thuringiensis subsp. jegathesan were cloned and characterized. The cry19A gene encodes a 74.7-kDa protein, and the orf2 gene encodes a 60-kDa protein. Cry19A contains the five conserved blocks present in most B. thuringiensis delta-endotoxins. The ORF2 amino acid sequence is similar to that of the carboxy terminus of Cry4 pr...

Journal: :The Journal of general virology 2006
H Guo E-M Zhou Z F Sun X-J Meng P G Halbur

Avian hepatitis E virus (avian HEV) was recently discovered in chickens from the USA that had hepatitis-splenomegaly (HS) syndrome. The complete genomic sequence of avian HEV shares about 50 % nucleotide sequence identity with those of human and swine HEVs. The open reading frame 2 (ORF2) protein of avian HEV has been shown to cross-react with human and swine HEV ORF2 proteins, but the B-cell e...

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