نتایج جستجو برای: arsb gene
تعداد نتایج: 1141400 فیلتر نتایج به سال:
ماکروفاژها از سلولهای مهم سیستم ایمنی در پاسخ به عوامل بیماریزای مختلف از جمله ویروس هرپس سیمپلکس یک 1- hsv0 هستند و عوامل موثر بر فعالیت آنها می توانند در سرنوشت بیماری موثر باشند. در این مطالعه اثر نوروپپتیدهای substance p(sp) وcalcitonin gene related-peptide (cgrp) که تحت شرایطی مثل استرس و التهاب از رشته های عصبی حسی آزاد می شوند و دارای گیرنده فعال بر روی ماکروفاژها می باشند ...
in view of the fundamental role of genetics in development of obesity, the present study aimed to investigate the single nucleotide polymorphism of some obesity-related genes among a subset of obese women living in tabriz, iran. for this purpose, 70 eligible obese women (aged 18-45 years) were genotyped for the uncoupling protein-1 (ucp-1) -3826a>g, ß3-adrenergic receptor (ß3adr) trp64arg, lept...
The release of new DNA-based diagnostic tools has increased tremendously in companion animals. Over 70 different DNA variants are now known for the cat, including DNA variants in disease-associated genes and genes causing aesthetically interesting traits. The impact genetic tests have on animal breeding and health management is significant because of the ability to control the breeding of domes...
many factors including genetic, environmental, and acquired are involved in breast cancer development across various societies. among all of these factors in families with a history of breast cancer throughout several generations, genetics, like predisposing genes to develop this disease, should be considered more. early detection of mutation carriers in these genes, in turn, can play an import...
Lysosomal diseases (LD) comprise a group of approximately 60 hereditary conditions caused by progressive accumulation of metabolites due to defects in lysosomal enzymes and degradation pathways, which lead to a wide range of clinical manifestations. The estimated combined incidence of LD is between 1 in 4000 to 1 in 13,000 live births, with recent data from pilot newborn screening studies showi...
ArsA protein is the soluble subunit of the Ars anion pump in the Escherichia coli membrane which extrudes arsenite or antimonite from the cytoplasm. The molecular weight of the subunit is 63 kDa. In the cell it hydrolyzes ATP, and the energy released is used by the membrane-bound subunit ArsB to transport the substrates across the membrane. We have obtained two-dimensional crystals of ArsA in t...
Extensive use of chromium (Cr) and arsenic (As) based preservatives from the leather tanning industry in Pakistan has had a deleterious effect on the soils surrounding production facilities. Bacteria have been shown to be an active component in the geochemical cycling of both Cr and As, but it is unknown how these compounds affect microbial community composition or the prevalence and form of me...
Resistance to toxic oxyanions of arsenic and antimony in Escherichia coli results from active efflux of these anions out of the cell. Extrusion is an active process mediated by an ATP-dependent pump composed of two types of subunits, the integral membrane ArsB protein and the catalytic ArsA subunit. An in vitro assay for transport in everted membrane vesicles of E. coli was developed. Uptake of...
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