We have studied the interaction, in vitro, between diferric transferrin (FeTr), aluminum transferrin (AlTr), and human reticulocytes harvested from human placental blood. In particular, we aimed to determine the extent to which the kinetics of AlTr and FeTr differed. Using transferrin labeled with either 59Fe or 125I, the association of radiotracer with reticulocytes, as a function both of time...

The dynamic personalities and structural heterogeneity of proteins are essential for proper functioning. Structural determination of dynamic/heterogeneous proteins is limited by conventional approaches of X-ray and electron microscopy (EM) of single-particle reconstruction that require an average from thousands to millions different molecules. Cryo-electron tomography (cryoET) is an approach to...

The DtxR family consists of metal-dependent transcription factors (DtxR-TFs) that regulate the expression of genes involved in metal homeostasis in the cell. The majority of characterized DtxR-TFs belong to Bacteria. In the current work, we applied a comparative genomics approach to predict DNA-binding sites and reconstruct regulons for DtxR-TFs in Archaea. As a result, we inferred 575 candidat...

Every year some older persons entitled to retiredworker benefits lose some or all of their benefits because of the annual carnzngs test This artzcle dascusscs thaw affcctcd 291, lWl--who they were, how much they rarned, how much they lost zn ,monthly cash benefits, am7 the effect of family status on bcnt$t amounts. In that year, among those apt! 62-71, relatively fewer women than rncn lost bclr...

The objectives of this study were to (1) determine the effect exogenous fibrolytic enzyme derived from Trichoderma reesei on dry matter (DM) and neutral detergent fibre (NDF) degradability whole plant faba bean silage (Snowbird), (2) evaluate effects (FETR) DM NDF degradation kinetics silage, (3) compare difference between in vitro approach (DaisyII incubation method) situ assay-biological (nyl...

festivals and celebrations are regarded as vitality and dynamism of each society. in pre-islamic iran, there have been as many as twenty four festivals. when iranians accepted islam, many islamic festivals were added to these national festivals. whereas one can find lots of information in tarikh-e-beihaghi, we can find little information in other historical books. meanwhile there is quite a lar...

Organizations compete in acquiring competitive resources, knowledge, and competencies. In the past, organizations applied the acquired resources, knowledge and competencies to gain superiority and thus outperform others in getting customers and brokering opportunities. In this manner, the superior organizations forced the inferior organizations outside the market. However, in the current market...

T he ocean covers ≈70% of the Earth’s surface and plays a major role in regulating global climate and sequestering carbon dioxide from the atmosphere. Diverse populations of phytoplankton, namely photosynthetic microalgae and cyanobacteria, abound in sunlit surface waters of the ocean and account for half of global primary production. Phytoplankton require a variety of essential nutrients, incl...