نتایج جستجو برای: shock proteins
تعداد نتایج: 642041 فیلتر نتایج به سال:
Heat shock proteins (HSPs) are highly conserved proteins, which are expressed in response to stress in all the species. Ritossa in 1962 (31), was first to observe an altered puffing pattern in giant chromosomes of salivary glands in Drosophila busckii after heat shock. On microscopic evaluation, areas of increased transcriptional activity in these giant chromosomes appear swollen and are called...
Accumulated evidence shows that some phytochemicals provide beneficial effects for human health. Recently, a number of mechanistic studies have revealed that direct interactions between phytochemicals and functional proteins play significant roles in exhibiting their bioactivities. However, their binding selectivities to biological molecules are considered to be lower due to their small and sim...
Heat shock leads to accumulation of polyadenylated RNA in nuclei of Saccharomyces cerevisiae cells, transcriptional induction of heat shock genes, and efficient export of polyadenylated heat shock mRNAs. These studies were conducted to examine the requirements for export of mRNA following heat shock. We used in situ hybridization to detect SSA4 mRNA (encoding Hsp70) and flow cytometry to measur...
This study presents a global transcriptional analysis of the cold shock response of Shewanella oneidensis MR-1 after a temperature downshift from 30 degrees C to 8 or 15 degrees C based on time series microarray experiments. More than 700 genes were found to be significantly affected (P < or = 0.05) upon cold shock challenge, especially at 8 degrees C. The temporal gene expression patterns of t...
Roughly two-thirds of the proteins annotated as transcription factors in dinoflagellate transcriptomes are cold shock domain-containing proteins (CSPs), an uncommon condition in eukaryotic organisms. However, no functional analysis has ever been reported for a dinoflagellate CSP, and so it is not known if they do in fact act as transcription factors. We describe here some of the properties of t...
The small heat shock proteins form a large protein family comprising proteins important in the cellular stress response. Their ability to protect cells against heat shock and their increased expression as part of the heat shock response contributed to their assignment as heat shock proteins. As their molecular mass was usually less than 30, 000 the term ‘small’ was incorporated to distinguish t...
The presence of human immunodeficiency virus (HIV) as a cause acquired remains medical and social problem despite the success antiretroviral therapy. Heat shock proteins (heat-shock - HSP) are family produced by cells in response to stressful conditions. aim study was determine activity heat endometrium HIV infection. Research groups were formed with 25 cases each group: group infection, combin...
Elevation of the incubation temperature of Chinook salmon embryo cells from 20 to 24 degrees C or exposure to heavy metals such as CdCl2 (5 microM) or ZnCl2 (100 to 500 microM) induces the reversible expression of a set of heat shock or stress proteins. Continuous exposure of the cells to either metal ions or heat shock results in recovery of protein synthesis to a control-like pattern. Treatme...
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