Overview:
Product Name | HSF1 Antibody | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Description | Rabbit Anti-Human HSF1 Polyclonal | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Species Reactivity | Human, Mouse, Rat | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Applications | WB, ICC/IF | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Antibody Dilution | WB (1:1000), ICC/IF (1:100); optimal dilutions for assays should be determined by the user. | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Host Species | Rabbit | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Immunogen Species | Human | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Immunogen | Purified human HSF1 protein NM_005526.2 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Concentration | 1 mg/ml | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Conjugates |
Alkaline Phosphatase, APC, ATTO 390, ATTO 488, ATTO 565, ATTO 594, ATTO 633, ATTO 655, ATTO 680, ATTO 700, Biotin, FITC, HRP, PE/ATTO 594, PerCP, RPE, Streptavidin, Unconjugated
StreptavidinProperties:
Streptavidin Datasheet BiotinProperties:
Biotin Datasheet HRP (Horseradish peroxidase)Properties:
HRP Datasheet AP (Alkaline Phosphatase)Properties:
AP Datasheet
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Properties
Storage Buffer | PBS pH7.4, 50% glycerol, 0.09% sodium azide |
Storage Temperature | -20ºC |
Shipping Temperature | Blue Ice or 4ºC |
Purification | Protein A purified |
Clonality | Polyclonal |
Specificity | Detects ~85kDa (unstressed cell lysates) and ~95kDa (heat shocked cell lysates). |
Cite This Product | StressMarq Biosciences Cat# SPC-208, RRID: AB_2704253 |
Certificate of Analysis | 1 µg/ml of SPC-208 was sufficient for detection of HSF1 in 20 µg of heat shocked HeLa cell lysate by colorimetric immunoblot analysis using Rabbit anti-rat IgG: AP as the secondary antibody. |
Biological Description
Alternative Names | Heat shock factor 1 Antibody, Heat shock factor protein 1 Antibody, Heat shock transcription factor 1 Antibody, HSF 1 Antibody, hsf1 Antibody, HSF1_HUMAN Antibody, HSTF 1 Antibody, HSTF1 Antibody |
Research Areas | Cancer, Heat Shock, Cardiovascular System, Cell Signaling, Epigenetics and Nuclear Signaling, Heart |
Cellular Localization | Cytoplasm, Nucleus |
Accession Number | NP_005517.1 |
Gene ID | 3297 |
Swiss Prot | Q00613 |
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. |
Product Images
Immunocytochemistry/Immunofluorescence analysis using Rabbit Anti-HSF1 Polyclonal Antibody (SPC-208). Tissue: Heat Shocked HeLa Cells. Species: Human. Fixation: 2% Formaldehyde for 20 min at RT. Primary Antibody: Rabbit Anti-HSF1 Polyclonal Antibody (SPC-208) at 1:100 for 12 hours at 4°C. Secondary Antibody: R-PE Goat Anti-Rabbit (yellow) at 1:200 for 2 hours at RT. Counterstain: DAPI (blue) nuclear stain at 1:40000 for 2 hours at RT. Localization: Cytoplasm. Nucleus. Magnification: 100x. (A) DAPI (blue) nuclear stain. (B) Anti-HSF1 Antibody. (C) Composite. Heat Shocked at 42°C for 1h.
Immunocytochemistry/Immunofluorescence analysis using Rabbit Anti-HSF1 Polyclonal Antibody (SPC-208). Tissue: Heat Shocked HeLa Cells. Species: Human. Fixation: 2% Formaldehyde for 20 min at RT. Primary Antibody: Rabbit Anti-HSF1 Polyclonal Antibody (SPC-208) at 1:100 for 12 hours at 4°C. Secondary Antibody: FITC Goat Anti-Rabbit (green) at 1:200 for 2 hours at RT. Counterstain: DAPI (blue) nuclear stain at 1:40000 for 2 hours at RT. Localization: Cytoplasm. Nucleus. Magnification: 20x. (A) DAPI (blue) nuclear stain. (B) Anti-HSF1 Antibody. (C) Composite. Heat Shocked at 42°C for 1h.
Product Citations (1)
Western Blot
Protective effect of a molecular chaperone inducer, paeoniflorin, on the HCl- and ethanol-triggered gastric mucosal injury.
Asai, M. et al. (2011) Life Sci. 88 (7-8): 350-357.
PubMed ID: 21167840 Reactivity Mouse Applications: Western Blot
ATTO 488 | ||
Overview:
ATTO 488 Datasheet | Optical Properties: λex = 501 nm λem = 523 nm εmax = 9.0×104 Φf = 0.80 τfl = 4.1 ns Brightness = 72 Laser = 488 nm Filter set = FITC |