plasmid for overproduction of the enzyme . ( fre ) of Escherichia coli and construction of a
نویسندگان
چکیده
منابع مشابه
ESCHERICHIA COLI HEAT-LABILE TOXIN B SUBUNIT: CONSTRUCTION AND EVALUATION OF PLASMIDS PROVIDING CONTROLLED HIGH LEVEL PRODUCTION OF THE PROTEIN
With the plasmid DNA from a clinical isolate of enterotoxigenic Escherichia coli (ETEC) H 10407 as template, PCR-mediated cloning of the sequence encoding the heat-labile toxin B subunit (L T -B) has been carried out. Then this sequence was recloned into the pTrc 99A and pET23a expression vectors to give the pJasmids pTRCLTB and pETLTB, respectively. After induction, the former plasmid provides...
متن کاملConstruction of New Genetic Tools as Alternatives for Protein Overexpression in Escherichia coli and Pseudomonas aeruginosa
Background: Pseudomonas protein expression in E. coli is known to be a setback due to signifi cant genetic variation and absence of several genetic elements in E. coli for regulation and activation of Pseudomonas proteins. Modifi cations in promoter/repressor system and shuttle plasmid maintenance have made the expression of stable and active Pseudomonas protein possible in bot...
متن کاملConstruction of the Recombinant Plasmid Expressing AID under the Control of Temperature-sensitive Promoter of Bacteriophage Lambda
Background and purpose: Activation-induced cytidine deaminase (AID) is a B-cell specific enzyme responsible for somatic hypermutation (SHM) and class switch recombination (CSR) of antibody genes within the B-cell follicle of peripheral lymphoid organs. Ectopic overexpression of the enzyme leads to mutations in non-B cells and Escherichia coli (E.coli) genes. However, induction of mutations in E...
متن کاملEXPRESSION OF NONSTRUCTURAL GLYCOPROTEIN NSP4 OF SAIl SIMIAN ROTAV IRUS IN ESCHERICHIA COLI AND PRODUCTION OF ANTIBODY AGAINST IT
Rotavirus nonstructural glycoprotein NSP4 can induce diarrhea in newborn mice. It has been suggested that NSP4 may be a key determinant for rotavirus pathogenesis and a target for vaccine development. In order to study the biological and morphological role of NSP4 a large amount of the purified protein and antibody against it are required. Simian rotavirus SA11 was propagated in BSCl cell,...
متن کاملInvestigation of adherent-invasive E. coli in patients with Crohn\'s disease
Background: Crohn's disease and Ulcerative colitis are known as inflammatory bowel disease with high morbidity which are as a result of increasing immune responses to intestinal microbiota in genetically susceptible individuals. The association of adherent invasive Escherichia coli with Crohn's disease in human has been discussed for decades. The principal aim of this study was to assess the re...
متن کامل