The hemagglutinin antigen (HA) of avian influenza virus (AIV) is an immunogen abundant on the surfaces of infected cells, and can be used as a target for specific antibodies to clear viral infection. Protamine has been demonstrated to deliver DNA into cells effectively. Accordingly, a fusion protein of anti-HA single-chain fragment variable (scFv) and truncated protamine (tP) may be used as a v...

AIM Interleukin 7 (IL-7) is a ϒc family cytokine involved in the homeostatic proliferation and maintenance of immune cells. In the present study, we report the expression of bovine IL-7 (bIL-7) in Escherichia coli and evaluated for its biological activity. MATERIALS AND METHODS The sequence coding for bIL-7 (mature protein) was amplified from primary bovine kidney cell culture and cloned into...

Background: DNA damage is one of the major consequences of radia on exposure onto the biological systems. A series of compounds including flavanoids were found to render DNA protec on against radia on damage. In this study we elucidated the poten al of ru n and ru n hydrate to protect plasmid DNA against damage induced by irradia on. Materials and Methods: DPPH and hydroxyl radical scavenging a...

Background: Betatrophin, a novel secretory protein from liver and fatty tissues, is believed to be involved in lipid and glucose metabolism. However, its precise physiological role remains unclear. Here, we report the cloning, expression, and purification steps of mouse betatrophin in a prokaryotic system, followed by its structural analysis.    Methods: Specific cloning primers were...

BACKGROUND Microbial lipid production represents a potential alternative feedstock for the biofuel and oleochemical industries. Since Escherichia coli exhibits many genetic, technical, and biotechnological advantages over native oleaginous bacteria, we aimed to construct a metabolically engineered E. coli strain capable of accumulating high levels of triacylglycerol (TAG) and evaluate its neutr...