The pcDNA3 mammalian expression vector uses the cytomegalovirus (CMV) promoter to express proteins cloned into an adjacent polylinker. We have modified this vector to create three different targeting constructs: Go to Plasma Membrane (pGTM), Go to Nucleus (pGTN) and Go to Nucleus, Activate Transcription (pGTNAT). pGTM expresses a protein as a fusion to a myristic acid attachment signal, which t...

The heat-stable toxin (ST) produced by enterotoxigenic Escherichia coli strains causes diarrhoea by altering the fluid secretion in intestinal epithelial cells. Here, the effectiveness of a flagellin fusion protein of Salmonella containing a 19-amino-acid sequence derived from the ST sequence (FLA--ST) in generating antibodies capable of neutralizing the toxic activity of ST was evaluated. This...

BACKGROUND Echinococcosis or hydatidosis is a chronic, zoonotic worldwide infection that occurs by the larval stages of taeniid cestodes of the genus Echinococcus. Iran is known as endemic region for this infection in the world. Vaccination has been considered as a good prevention method for this disease. Recombinant vaccines containing EG95 protein, against E. granulosus, has shown a high degr...

A refractile body antigen (designated SO7') found in sporozoites of Eimeria tenella was administered to chickens in various immunizing forms to assess its ability to protect against virulent challenge. These included native antigen from the parasite (viable oocysts; per os), recombinant antigen (CheY-SO7'; s.c.), and naked DNA immunization (pcDNA3-SO7'; i.m.). Male White Leghorn chicks were ino...

The expression of KiSS-1, MMP-9 and MMP-2 mRNAs and proteins was studied in placentas of women with preeclampsia (PE, n=47) and women of normal pregnancy (NP; n=30). In addition, KiSS-1 mRNA expression as well as cell growth, proliferation and invasion were examined in JAR cells (human trophoblast cell line) transfected with pcDNA3-KiSS-1vector. Expression of KiSS-1 mRNA and protein was higher ...

Inoculation with purified specific protein is usually the first step for preparation of monoclonal antibody (mAb). But it is quite difficult to obtain pure proteins especially with natural structures. Here we attempt to replace the protein inoculation with DNA immunization in the preparation of mAb. The eukaryotic expression vectors pcDNA3-PreS2/S and pVAX-PreS2/S encoding the HBV M protein wer...

The neonatal diarrhea in swine caused by enterotoxigenic Escherichia coli (ETEC) is responsible for high mortality and low growth rate in pigs and it is mainly dependent on the capacity of E. coli to attach to the surface of the small intestine, a property mediated by fimbria. In this study the faeC gene, which codes for the minor fimbrial subunit of E. coli K88ab, was cloned in the eukaryotic ...

Cover (and back side), Alexa488-APEC staining (green) of the adenosine A 2A receptor in living Chinese hamster ovary cell transiently transfected with pcDNA3 A 2A R as well as pAS β-arrestin2-RFP (red).

the aim of this study was to use site directed mutagenesis technique to construct a vector in which serine363 and serine375 residues of the cooh-terminal portion of the μ-opioid receptor (mor) were substituted by alanine. these constructs are essential in studying g-protein coupled receptor kinase-mediated mor desensiti-zation. the nested pcr carried out for conversion of serine363 and serine37...