نتایج جستجو برای: expression cloning
تعداد نتایج: 914891 فیلتر نتایج به سال:
Background and Aim: As one of the factors of gastric ulcers and cancer, Helicobacter pylori can live in the acidic environment of stomach for many years due to having urease enzyme. This enzyme requires Ni2+ and a group of auxiliary proteins such as ureE for its catalytic activity. Urease is not only a requisite factor to colonize the Helicobacter pylori but it is also pathogenic with diff...
background: toxoplasma gondii is an obligate intracellular parasite and its sexual and asexual cycles, respectively take place in the intestinal epithelial cell of definitive host and tissue of intermediate hosts. congenital toxoplasmosis is more impor tant when the mother acquired the infection during pregnancy period for the first time. serological tests are the only meth ods for diagnosis of...
background: the advent of recombinant dna technology has facilitated heterologous expression of proteins from various sources in different host systems including escherichia coli. if a plant virus coat protein is expressed in the bacterium it can be used as the antigen for antibody preparation. such a recombinant antigen preparation can be particularly useful where equipment such as ultracentri...
Molecular cloning, functional characterization, tissue expression and polymorphism analysis of buffalo PRDX6 gene | Yongwang Miao, Lihua Qiu, Xinyang Fan, Xiaohong Teng, Pei Wang Agricultural Journals
Background and purpose: Toxoplasma gondii (T. gondii) is an obligatory intracellular protozoan parasite. Toxoplasmosis is highly prevalent and has a great effect on public health, therefor, there is a need for vaccine and sensitive diagnostic procedures. This study aimed at cloning and investigating the expression of ROP13 gene of T. gondii. Materials and methods: In this study, the gene was c...
Background and purpose: Clostridium botulinum bacteria produces seven types of botulinum neurotoxins among which types A, B, E and F are responsible for human botulism. One of the treatments for botulism is the inhibition of botulinum neurotoxins catalytic domain activity by inhibitors. In this study, botulinum neurotoxin type E catalytic domain has been cloned in pET28a vector and expressed in...
background: tuberculosis (tb) remains as a major cause of death around the world. construction of a new vaccine against tuberculosis is an effective way to control it. several vaccines against this disease have been developed. the aim of the present study was to cloning of tb10.4 gene in pcdna3.1+ plasmid and evaluation of its expression in eukaryotic cells. methods: firstly, tb10.4 fragment wa...
Abstract Background and purpose: E. coli O157:H7 is one of the intestinal pathogens that mediate serious damages in gastrointestinal track. The bacterium attachment in large intestine is mediated via some colonization factors mainly Type III secretion proteins that are involved in this process. Among these factors, EspA protein plays an important role in system foundation. The aim of this ...
objective(s) nonviral vector can be an attractive alternative to gene delivery in experimental study. in spite of some advantages in comparison with the viral vectors, there are still some limitations for efficiency of gene delivery in nonviral vectors. to determine the effective expression, the recombinant escherichia coli lacz genes were cloned into the different variants of pcdna3.1 and then...
ricin, the toxic lectin extracted from the castor bean plant (ricinus communis), consists of an a chain (rta) and a b chain (rtb). anti-a chain abs and anti-b chain abs can neutralize toxins in vivo and in vitro via blocking the binding of the toxin to the cell. also, rtb protein is able to serve as an antigen deliver to the mucosal immune system and act as an immunoadjuant. here, the genomic d...
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