HSF1, or heat shock factor 1, belongs to a family of Heat Shock transcription factors that activate the transcription of genes encoding products required for protein folding, processing, targeting, degradation, and function (2). The up-regulation of HSP (heat shock proteins) expression by stressors is achieved at the level of transcription through a heat shock element (HSE) and a transcription factor (HSF) (3, 4, 5). Most HSFs have highly conserved amino acid sequences. On all HSFs there is a DNA binding domain at the N-terminus. Hydrophobic repeats located adjacent to this binding domain are essential for the formation of active trimers. Towards the C-terminal region another short hydrophobic repeat exists, and is thought to be necessary for suppression of trimerization (6). nThere are two main heat shock factors, 1 and 2. Mouse HSF1 exists as two isoforms, however in higher eukaryotes HSF1 is found in a diffuse cytoplasmic and nuclear distribution in un-stressed cells. Once exposed to a multitude of stressors, it localizes to discrete nuclear granules within seconds. As it recovers from stress, HSF1 dissipates from these granules to a diffuse nuceloplasmic distribution. HSF2 on the other hand is similar to mouse HSF1, as it exists as two isoforms, the A form being more transcriptionally active than the smaller B form (7, 8). Various experiments have suggested that HFS2 may have roles in differentiation and development (9, 10, 11).
应用类型
WB | IHC | ICC/IF | IP | ELISA | GS
免疫原
重组小鼠 HSF1 纯化蛋白
来源宿主
大鼠
反应性
人 | 小鼠 | 大鼠 | 牛 | 豚鼠 | 仓鼠 | 猴 | 兔
保存建议
厂家推荐蓝冰运输。收到产品后建议保存于-20ºC。
其他
StressMarq Biosciences Inc. 在2007年成立于加拿大维多利亚,是一家生物科技公司,专门从事试剂与试剂盒研究,服务范围遍及全266多个国家。 StressMarq公司的核心技术领域为细胞应激(尤其是热休克蛋白(HSP)领域,领先全球),离子通道,载体研究,同时在神经科学领域推出特有的具有生物活性的Tau蛋白与A-突触核蛋白。产品领域涉及到:细胞凋亡、细胞信号、通路和转运、细胞器标志物、热休克、神经生物学、神经科学、氧化应激、磷酸化运输等。除了提供用于进一步研究的相关工具外,Str