Principle of the Assay: This ELISA kit uses Sandwich-ELISA as the method. The micro ELISA plate provided in this kit has been pre-coated with an antibody specific to HSF1. Standards or samples are added to the appropriate micro ELISA plate wells and combined with the specific antibody. Then a biotinylated detection antibody specific for HSF1 and Avidin-Horseradish Peroxidase (HRP) conjugate is added to each micro plate well successively and incubated. Free components are washed away. The substrate solution is added to each well. Only those wells that contain HSF1, biotinylated detection antibody and Avidin-HRP conjugate will appear blue in color. The enzyme-substrate reaction is terminated by the addition of a sulphuric acid solution and the color turns yellow. The optical density (OD) is measured spectrophotometrically at a wavelength of 450 nm +/- 2 nm. The OD value is proportional to the concentration of HSF1. You can calculate the concentration of HSF1 in the samples by comparing the OD of the samples to the standard curve.
NCBI and Uniprot Product Information
NCBI Description
The product of this gene is a heat-shock transcription factor. Transcription of heat-shock genes is rapidly induced after temperature stress. Hsp90, by itself and/or associated with multichaperone complexes, is a major repressor of this gene. [provided by RefSeq, Jul 2008]
Uniprot Description
HSF1: a transcription factor that specifically binds heat shock promoter elements (HSE) and activates transcription. Induced in response to heat, heavy metals, and oxidative stress. In higher eukaryotes, HSF is unable to bind to HSEs unless the cells are stressed. Becomes phosphorylated in response to stress, forming homotrimers that bind DNA and activate transcription. Phosphorylation by PLK1 enhances nuclear translocation, and phosphorylation by CaMKII enhances transactivation. Phosphorylation by GSK3 and ERK1 induces binding by 14-3-3 and sequestration in the cytoplasm. In addition, during attenuation from the heat shock response, HSF1 is repressed by direct binding of Hsp70, HSP40, and HSF binding protein 1 (HSBP1). Four alternatively spliced isoforms have been described.
Protein type: Transcription factor; DNA-binding
Chromosomal Location of Human Ortholog: 8q24.3
Cellular Component: nucleoplasm; protein complex; pronucleus; cytoplasm; cytosol
Molecular Function: protein binding; chromatin binding; transcription factor activity
Biological Process: negative regulation of cell proliferation; embryonic placenta development; embryonic process involved in female pregnancy; mRNA transcription; female meiosis; defense response; positive regulation of transcription from RNA polymerase II promoter; spermatogenesis; response to lipopolysaccharide; negative regulation of tumor necrosis factor production; negative regulation of transcription from RNA polymerase II promoter; positive regulation of multicellular organism growth; protein amino acid phosphorylation
Research Articles on HSF1
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Product Notes
The Guinea Pig HSF1 hsf1 (Catalog #AAA2512812) is an ELISA Kit and is intended for research purposes only. The product is available for immediate purchase. The AAA2512812 ELISA Kit recognizes Guinea Pig HSF1. It is sometimes possible for the material contained within the vial of "HSF1, ELISA Kit" to become dispersed throughout the inside of the vial, particularly around the seal of said vial, during shipment and storage. We always suggest centrifuging these vials to consolidate all of the liquid away from the lid and to the bottom of the vial prior to opening. Please be advised that certain products may require dry ice for shipping and that, if this is the case, an additional dry ice fee may also be required.Precautions
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