Utilization of mRNAs containing iron-responsive elements (IREs) is modulated by iron-regulated RNA-binding proteins (iron regulatory proteins). We examine herein whether iron differentially affects translation of ferritin and mitochondrial aconitase (m-Acon) mRNAs because they contain a similar but not identical IRE in their 5'-untranslated regions. First, we demonstrate that m-Acon synthesis i...

Iron–sulfur clusters appear in a great many proteins as both electron-transport and enzymatic sites (see Iron–Sulfur Proteins); for this reason there has been great interest for 30 years in the development and understanding of iron–sulfur model complexes. Both structure and properties of synthetic analogs of 1-, 2-, 3-, and 4-iron protein active sites have been studied extensively.1 This articl...

Molecular metal clusters with carbide carbon atoms of low coordination number have been prepared; they are the anionic [HFe(4)C(CO)(12) (-)] and [Fe(4)C(CO)(12) (2-)] clusters. An x-ray crystallographic analysis of a tetraaminozinc salt of the latter has established a butterfly array of iron atoms with the carbide carbon atom centered above the wings of the Fe(4) core. Each iron atom was bonded...

Despite being implicated as important intermediates, iron(V) compounds have proven very challenging to isolate and characterize. Here, we report the preparation of the iron(V) nitrido complex, [PhB((t)BuIm)(3)Fe(V)≡N]BAr(F24) (PhB((t)BuIm)(3)(-) = phenyltris(3-tert-butylimidazol-2-ylidene)borato, BAr(F24) = B(3,5-(CF(3))(2)C(6)H(3))(4)(-)), by one electron oxidation of the iron(IV) nitrido prec...

the main reasons for the fixation of some elements and consequently nutrient deficiencies, especially phosphorus, iron and zinc, are high levels of calcium (calcareous soils) and soil ph. two sulfur fertilizers (sulfur alone and sulfur + organic material + thiobacillus spp.) with two rates (2 and 4 kg sulfur/tree) were used to decrease soil ph and availability of p, fe and zn in apple trees dur...

background: iron deficiency anemia (ida) has been controversially linked to il-4 production in previous studies. a predominant th1 response leads to resistance against recurrent vulvovaginal candidiasis (rvvc), whereas a th2 response exacerbates the disease. objective: to investigate the possible effect of iron deficiency on the host’s susceptibility to rvvc as a result of the th1/th2 cytokine ...

to evaluate the effects of phosphorous, iron and zinc fertilizers on quantity and quality of turnip, a field experiment was conducted in 2009. the experiment treatments arranged as split plot factorial based on a completley randomized design with 4 replications in the research farm of the university of tehran (karaj-iran). the main factor including three levels of phosphorous (super phosphate t...

Sabun adalah salah satu bahan esensial yang digunakan untuk mencuci peralatan dapur, pakaian, perabot, badan, dan lain-lain terbuat dari campuran alkali, trigliserida lemak. Artikel ini memuat informasi pemaparan mengenai Program Pengabdian Kepada Masyarakat berkaitan dengan pembuatan Cuci Piring berbasis sodium lauryl sulphat (SLS) sebagai surfaktan. dimulai proses pembuatan, langkah-langkah, ...