The importance of the issue is determined by the current demographic situation in Georgia and the world in general. The trend of growing the number of older people and the increase of the life span is obvious. At the same time in the number of countries, particularly in the developed western countries and Japan, the decrease of birth rate is noticed.
View Article and Find Full Text PDFThe half lives of mRNA for Escherichia coli chloramphenicol-acetyltransferase, Bacillus amyloliquefaciens alpha-amylase and human leucocyte interferon were measured in E. coli cells by molecular RNA.DNA hybridization.
View Article and Find Full Text PDFUsing controlled pore glass chromatography and immunoaffinity chromatography on monoclonal antibodies NK-2 immobilized on Sepharose 4B, the electrophoretically homogeneous interferons alpha N and alpha I1 were isolated from the biomass of gene-engineered Pseudomonas sp. strains. In terms of specific activity on human fibroblast diploid cells, interferon alpha I1 does not differ from interferon alpha A, whereas the specific antiviral activity of interferon alpha N is as low as 2.
View Article and Find Full Text PDFThe expression of human leucocyte interferon alpha F gene in plasmid pLM-IFN alpha F-273 is controlled by a hybrid tac (trp-lac) promoter. A structural gene for interferon alpha F is a component of the hybrid operon lacZ'-IFN alpha F-TcR, that contains an E. coli trp-operon intercystronic region.
View Article and Find Full Text PDFA chromosomal gene for human leucocyte interferon A is expressed in Saccharomyces cerevisiae yeasts due to interaction of 5'-nontranslating region of the cloned interferon gene with the regulatory elements of yeast genes PHO5, GAL1 and GAL10. Regulated systhesis of interferon was obtained in all cases. The level of interferon genes expression in case using GAL1 and GAL10 genes regulatory elements (5 X 10(5) and 5 X 10(6) u X l-1) correlated with the distances to their promoters.
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