Specifications
IMMUNOGEN
Purified recombinant mouse HSF1 protein
SPECIFICITY
Detects ~85kDa (unstressed cell lysates) and ~95kDa (heat shocked cell lysates).
STORAGE BUFFER
PBS pH 7.4, 50% glycerol, 0.1% sodium azide *Storage buffer may change when conjugated
ANTIBODY ID
https://antibodyregistry.org/search.php?q=AB_2702292
CELLUAR LOCALIZATIONS
Cytoplasm | Nucleus
SHIPPING NOTES
Blue Ice or 4ºC. All orders received in North America by 12:00 PM PST Monday to Thursday will usually be shipped out on the same day. North American customers will typically receive their orders within 1-2 business days. All shipments are F.O.B. from point of shipment, pre-paid and added to the invoice. Freight charges include but not limited to: priority service and packaging materials.Products are shipped with “cold packs” in insulated containers. There is a charge for this packaging and for the shipping costs via FedEx. Please inspect packages immediately upon receipt and inform Labscoop Customer Support of any shortage or damage within 48 hours of receipt. We can only accept returns after we have given prior authorization and issued specific shipping instructions. If a customer wishes to use their own FedEx account number please indicate this on the purchase order or during checkout.
APPLICATION
WB, IHC, ICC/IF, IP, ELISA, GS
GENE ID
https://www.ncbi.nlm.nih.gov/gene/15499
*USAGE / SAFETY STATEMENT
Not for use in humans. Not for use in diagnostics or therapeutics. For in vitro research use only.
ANTIBODY TYPE
WB (1:1000), IHC (1:8000), ICC/IF (1:100); optimal dilutions for assays should be determined by the user.
REACTIVITY SPECIES
Human | Mouse | Rat | Bovine | Guinea Pig (Cavia porcellus) | Hamster | Monkey | Rabbit
PURIFICATION
Protein G Purified
QUALITY CERTIFICATION / COMPLIANCE
ISO 9001:2015
SCIENTIFIC BACKGROUND
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).
There 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 alpha form being more transcriptionally active than the smaller beta form (7, 8). Various experiments have suggested that HFS2 may have roles in differentiation and development (9, 10, 11).
REFERENCES
1. Cotto J.J., Fox S.G. and Morimoto R.I. (1997) J. Cell Science 110: 2925-2934.
2. Morano K.A. and Thiele D.J. (1999). Gene Expression 7 (6): 271-82.
3. Tanaka K.I., et al. (2007). JBC Papers Online Manuscript M704081200.
4. Morimoto R. I. (1998) Genes Dev 12: 3788-3796.
5. McMillan D. R., et al. (1998) J Bio Chem 273: 7523-7528.
6. Jolly C., Usson Y. and Morimoto R.I. (1999) Proc. Natl. Acad. Sci. USA 96 (12): 6769- 6774.
7. Fiorenza M.T., et al. (1995) Nucleic Acids Res. 23 (3):467-474.
8. Goodson M.L., Park-Sarge O.K. and Sarge K.D. (1995) Mol. Cell. Biol. 15(10): 5288-5293.
9. Rallu M., et al. (1997) Proc. Natl. Acad. Sci. USA 94(6): 2392-2397.
10. Sarge K.D., et al. (1994) Biol. Reprod. 50(6): 1334-1343.
11. Murphy S.P., Gorzowski J.J., Sarge K.D. and Phillips B. (1994) Mol. Cell. Biol. 14(8):5309-5317.
RESEARCH AREA
Cancer | Heat Shock | Cell Signaling | Epigenetics and Nuclear Signaling | cardiovascular System | Heart
ALTERNATIVE NAMES
HSTF1 Antibody, Heat shock factor protein 1 Antibody, Heat shock transcription factor 1 Antibody, HSF 1 Antibody