interaction of glucose 6-phosphate dehydrogenase from s. aureofaciens with nad+, nadp+and glucose 6-phosphate were investigated using different fluorescent probes. binding of nad+, nadp+and s-nadph to the native enzyme quenched intrinsic protein fluorescence by 100%, 10% and 21%,respectively, from which kd values of nad+ (6.5 mm), nadp+ (92.0 μm) and s-nadph (122.0 μm)were calculated. binding o...

Macroalgae are considered as primary producers in ecosystem food chain. This study investigated spatial and temporal variation of three species of macroalgae namely, Laurencia caspica (red macroalga) Enteromorpha intestinalis and Cladophora glomerata (green macroalgae) on the hard substrates of the southern Caspian Sea coasts and their relation with environmental factors. Seasonal sampling pref...

The aim of this work was to investigate the effect of silica coating on bioactivity and biodegradability of hydroxyapatite. In this purpose, we firstly attempted to synthesis hydroxyapatite (HA) nanoparticles and its silica coated (Si-HA) sample in collagen matrix using calcium chloride, sodium phosphate and sodium silicate. Characterization of the sample was carried out using Fourier transform...

background: in order to obtain an anti-cd20 conjugate to be used in future therapeutic studies with therapeutic radioisotopes, 67ga-labeled antibody was prepared as a model of metal chelated immunoconjugate for preliminary dosimetric and biodistribution studies. materials and methods: rituximab was labeled with [67ga]-gallium chloride after residulation with freshly prepared cyclic dtpadianhydr...

ABSTRACT- To investigate the effects of bio-chemical and organic fertilizers on yield and seeds NPK contents of pumpkin (Cucurbita pepo var. styriaca), an experiment was conducted at the Research Farm of Kurdistan University in 2009 growing season. Treatments were included 1) control, 2) seeds inoculated with free-living N fixing bacteria (NFB), 3) seeds inoculated with phosphate-solubilizing b...