abstract background and aims: influenza a(h5n1) viruses  circulating in animals might evolve and acquire the ability to spread from  human to human and thus start a pandemic. hemagglutinin (ha) has been shown to play a major role in binding of influenza virus to its target cell and the main neutralizing antibody responses elicit against this region. recent studies have shown that glycosylation ...

background and aims: influenza a(h5n1) viruses  circulating in animals might evolve and acquire the ability to spread from  human to human and thus start a pandemic. hemagglutinin (ha) has been shown to play a major role in binding of influenza virus to its target cell and the main neutralizing antibody responses elicit against this region. recent studies have shown that glycosylation of ha is ...

lipases catalyze hydrolysis and synthesis of triacylglycerols. these enzymes,especially the microbial ones, have wide commercial and industrial usage. bacillus subtilis lipase has interesting properties such as small size and tolerance to basic ph; therefore, developing techniques for its recognition and isolation is the focus of research in many laboratories. in the present study, two factors ...

objective: organophosphorus (ops) compounds are widely used in many pesticides, insecticides and chemical nerve agents. these compounds are hazardous for humans and the environment. organophosphate hydrolase (oph) is a homodimeric protein initially isolated from pseudomonas diminuta mg and flavobacterium species. this enzyme is able to degrade a broad spectrum of toxic ops compounds. using immo...

background: degradation of phytic acid to inorganic phosphate in domestic animals’ diets requires thermostable phytase. although basillus subtilis phytase shows a potential to be degraded phytate complex in high temperature, the enzyme activities and yields need to be increased to make them possible for industrial application. methods: the phytase gene from bacillus subtilis dr8886 was isolated...

Studies were carried out on the decolorization of azo dyes by Bacillus species from effluent of textile industries. About 10 bacterial strains were isolated from the effluent of textile industries, Bacillus sp. showed remarkable ability in decolorizing the widely utilized azo dyes. Phenotypic characterization and phylogenetic analysis based on 16S rDNA sequence comparisons indicate that these s...

OBJECTIVE To study the sterilizing effect and mechanism of electrolyzed-oxidizing water (EOW) and electrolyzed-reductive water (ERW) for Bacillus subtilis var. niger (ATCC9372) and Escherichia coli (8099). METHODS The generations of EOW and ERW were made in the ion membrane electrolysis cell. The sterilization manner was the suspension quantitative germicidal test. RESULTS The killing rate ...

I. Cordycepin monophosphate has been shown to inhibit the activity of phosphoribosyl-pyrophosphate amidotransferase (ribosylamine-5-phosphate:pyrophosphate phosphoribosyltransferase (ghitamate-amidating), EC 2.4.2.14) obtained from both pigeon liver and Bacillus subtilis. 2. Evidence is presented for the existence of a phosphorylated derivative of cordycepin in Bacillus subtilis cells which wer...

results the pcr approved the bacillus genus of the isolates. the strain of bacillus subtilis was identified using biochemical tests. 40 ºc and ph 11 are the optimum condition for maximum keratinase enzyme activity. objectives the aim of this study was the isolation of feather degrading bacillus spp.from a poultry waste and the optimization of conditions for the highest enzyme activity and feath...