The reason why vulnerabilities to mutant polyglutamine (polyQ) proteins are different among neuronal subtypes is mostly unknown. In this study, we compared the gene expression profiles of three types of primary neurons expressing huntingtin (htt) or ataxin-1. We found that heat shock protein 70 (hsp70), a well known chaperone molecule protecting neurons in the polyQ pathology, was dramatically ...

Cyclin B-dependent CDC2 kinase activity has a key role in triggering the G2/M-phase transition during the mitotic and meiotic cell cycles. The Hsp70-2 gene is expressed only in spermatogenic cells at a significant level. In Hsp70-2 gene knock-out (Hsp70-2(-/-)) mice, primary spermatocytes fail to complete meiosis I, suggesting a link between HSP70-2 heat-shock protein and CDC2 kinase activity d...

Studying thermotolerance is important for the prevention of thermostress in chickens. This study aimed to analyze the effect of mutations in the heat shock protein 70 (HSP70) gene on chicken thermotolerance. The C.-69A>G SNP in the 5'-flanking region of the HSP70 gene was genotyped in Lingshan and White Recessive Rock (WRR) chickens. Association of this SNP with thermotolerance traits revealed ...

The cell nucleus is organized as discrete domains, often associated with specific events involved in chromosome organization, replication, and gene expression. We have examined the spatial and functional relationship between the sites of heat shock gene transcription and the speckles enriched in splicing factors in primary human fibroblasts by combining immunofluorescence and fluorescence in si...

Thermal stress alters the normal body homeostasis and causes severe detrimental effects on production and productivity of animals. Heat shock proteins (HSPs) are highly conserved family of proteins that are ubiquitously expressed in animal’s body during thermal stress. Out of all the members present in this family, HSP70 is regarded as the most significant indicator of thermal stress. The prese...

The stress response in cells involves a rapid and transient transcriptional activation of stress genes. It has been shown that Hsp70 limits its own transcriptional activation functioning as a corepressor of heat shock factor 1 (HSF1) during the attenuation of the stress response. Here we show that the transcriptional corepressor CoREST interacts with Hsp70. Through this interaction, CoREST repr...

This study investigated the antioxidant enzyme activities in skin mucus of gilthead seabream (Sparus aurata L.) at 3 and 7 days post-wounding (dpw). The expression levels genes that encode stress proteins (grp170, grp94, grp75, sod hsp70) regeneration-related (tf, igf1, tgfb1, der1, apo1 erdj3) also were determined. Mucus samples obtained from left right flanks non-wounded wounded fish. In both...

Heat shock protein 70 (Hsp70) is a class of HSPs involved in plant growth and development, stress response regulation. The Hsp70 proteins exist widely the world, but detail information about Hsp70s still unclear cucumber. Based on available cucumber genome, total 12 genes (CsHsp70-1 to CsHsp70-12) were identified this study, they distributed among five out seven chromosomes. CsHsp70s divided in...

Many mammalian genes localize near nuclear speckles, nuclear bodies enriched in ribonucleic acid-processing factors. In this paper, we dissect cis-elements required for nuclear speckle association of the heat shock protein 70 (Hsp70) locus. We show that speckle association is a general property of Hsp70 bacterial artificial chromosome transgenes, independent of the chromosome integration site, ...