results cloning and subcloning of the flic gene were confirmed by colony pcr, restriction enzymes digestion and dna sequencing of the recombinant plasmids pprime-flic and pvax-flic. the expression of flagellin protein in eukaryotic cells was approved by immunofluorescence assay (ifa), western blotting analysis and the reverse transcriptase polymerase chain reaction (rt-pcr) method. conclusions t...

background contamination of therapeutic recombinant proteins with residual host cell dna must be controlled under the regulatory standards. objectives the current study established a new rapid, sensitive real time polymerase chain reaction (pcr) approach to measure the reliably of the residual escherichia coli (e. coli) host cell genomic dna in the recombinant streptokinase and alfa interferon ...

background: the assays currently available for the detection of specific anti- toxoplasma antibodies may vary in their abilities to detect serum immunoglobulins, due to the lack of a purified standardized antigen. the aim of this study was evaluation the recombinant toxoplasma gondii sag1 antigen for the serodiagnosis of acute and chronic toxoplasmosis. methods : this study describes an elisa u...

Prior to the production of human gamma interferon using recombinant DNA technology, it had been producedmainly upon mitogenic induction of lymphocytes in very low amounts, which evidently hamperedits characterization and its medical applications. The recombinant gamma interferons produced in largerquantities in prokaryotic systems retain their biological activities, and can be...

infectious bursal disease virus (ibdv) is the causative agent of gumboro disease, an infectious disease of global economic importance in poultry. the expression of heterologous proteins in p.pastoris is fast, simple and inexpensive. in this study, vp2 encoding gene of classical d78 ibdv was amplified using reverse transcription (rt) polymerase chain reaction (pcr) and cloned into ppiczαa vector...

Background and Aims: Since the produced recombinant proteins by molecular genetics techniques commonly have some limitations in the application, chimeric protein are introduced. Chimeric proteins have found widespread application for the study of protein folding, structure stability, function and immunogenisity. Methods: According to the known Immunomodulatory effect and structure of HSP70 mole...

REPORTS Recombinant DNA: Examples ofPresent-Day Research:J.Abelson. Charon Phages: Safer Derivatives ofBacteriophage Lambda forDNA Cloning: F. R. Blattner et al. . Recombinational Switch for Gene Expression: J. Zieg et al. Gene Cloning and Containment Properties of Plasmid Col El and Its Derivatives: K. A. Armstrong, V. Hershfield, D. R. Helinski. EK2 Derivatives ofBacteriophage Lambda Useful i...

objective(s): helicobacter pylori, a human specific gastric pathogen is a causative agent of chronic active gastritis. the vacuolating cytotoxin (vaca) is an effective virulence factor involved in gastric injury. the aim of this study was to construct a recombinant protein containing antigenic region of vaca gene and determine its antigenicity.   materials and methods: the antigenic region of v...

objective: antigen 85 complex of mycobacterium tuberculosis includes three immunogenic proteins which are important tb vaccine candidates. the use of these protein as a component of subunit vaccines, as a part of dna vaccines or recombinant bcg boosters, enhances their recombinant production. recombinant production of these mycobacterial proteins located in the cell wall somehow differs from th...

Background: Plants have various defense mechanisms such as production of antimicrobial peptides, particularly pathogenesis related proteins (PR proteins). PR10 family is an essential member of this group, with antifungal, antibacterial and antiviral activities.Objective: The goal of this study is to assess the antifungal activity of maize PR10 against some of fungal phytopathogens.M...