Background: IFN-g is mostly secreted by activated CD4+ , CD8+ T cells and NK cells. This cytokine has immunomodulatory, anti-cancer and anti-microbial effects and is important for prophylaxis, diagnosis and treatment of chronic infections and cancers. Objective: The purpose of this study was to clone the full cDNA of human IFN-g and express it in CHO cell line. Methods: Lymphocytes from a healt...

with regard to human cloning or artificial human reproduction – and contrary to the opinions of sunni scholars - shiite thinkers have not held a unified position. after having surveyed a number of shiite fatwas and analyses on the subject, this essay will classify them into four groups. the first group states that we are granted absolute permission to engage in human cloning; while the second g...

We report further development of a novel recombinant protein expression system based on the Gram-negative bacterium, Ralstonia eutropha. In this study, we were able to express soluble, active, organophosphohydrolase (OPH), a protein that is prone to inclusion body formation in Escherichia coli, at titers greater than 10 g/L in high cell density fermentation. This represents a titer that is appr...

We described previously the cloning of putative G protein-coupled receptor by selective amplification using the polymerase chain reaction and degenerate primers corresponding to conserved regions of known receptors (1). This approach led to the cloning of the TSH receptor (2). Amongst the other characterized clones, HGMP08 appeared as preferentially expressed in the brain. The full coding regio...

The recent cloning of three melanocortin receptors suggests an unexpected diversity in this family of seven transmembrane G-protein linked receptors. Herein, we report the cloning, expression, and gene localization of a fourth human melanocortin receptor, the melanocortin-4 receptor. By Northern blot analysis and in situ hybridization, this receptor is expressed primarily in the brain, but its ...

Bacilli are ubiquitous low G+C environmental Gram-positive bacteria that produce a wide assortment of specialized small molecules. Although their natural product biosynthetic potential is high, robust molecular tools to support the heterologous expression of large biosynthetic gene clusters in Bacillus hosts are rare. Herein we adapt transformation-associated recombination (TAR) in yeast to des...

Effectively and accurately assessing total microbial community diversity is one of the primary challenges in modern microbial ecology. This is particularly true with regard to the detection and characterization of unculturable populations and those present only in low abundance. We report a novel strategy, GC fractionation combined with denaturing gradient gel electrophoresis (GC-DGGE), which c...

Recent advances in molecular biological techniques have seen the cloning of the H2-receptor gene from canine parietal cells, and the structural identification and cloning of the H1- and H3-receptors should soon follow. This information will allow the elucidation of the mechanisms responsible for the species and tissue heterogeneity in the H1-receptor binding and functional characteristics. The ...