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Immunohistochemistry (IHC) (P-Peptide-+ Immunohistochemical analysis of paraffin-embedded human breast carcinoma tissue using HSF1 (Phospho-Ser303) antibody.)

anti-Human HSF1 Antibody | anti-HSF1 antibody

HSF1 (Phospho-Ser303) Antibody

Gene Names
HSF1; HSTF1
Reactivity
Human
Applications
Western Blot, Immunohistochemistry, ELISA
Purity
Affinity-purified from rabbit antiserum by affinity-chromatography using epitope-specific phosphopeptide. The antibody against non-phosphopeptide was removed by chromatography using non-phosphopeptide corresponding to the phosphorylation site.
Synonyms
HSF1; HSF1 (Phospho-Ser303) Antibody; HSTF1; Heat shock factor protein 1; anti-HSF1 antibody
Ordering
For Research Use Only!
Reactivity
Human
Specificity
HSF1 (Phospho-Ser303) antibody detects endogenous levels of HSF1 only when phosphorylated at serine 303.
Purity/Purification
Affinity-purified from rabbit antiserum by affinity-chromatography using epitope-specific phosphopeptide. The antibody against non-phosphopeptide was removed by chromatography using non-phosphopeptide corresponding to the phosphorylation site.
Form/Format
In phosphate buffered saline (without Mg2+ and Ca2+), pH 7.4, 150mM NaCl, 0.02% sodium azide and 50% glycerol.
Sequence Length
529
Applicable Applications for anti-HSF1 antibody
Western Blot (WB), Immunohistochemistry (IHC), ELISA (EIA)
Application Notes
WB: 1:500~1:1000
IHC: 1:50~1:100
ELISA: 1:20000
Immunogen
The antiserum was produced against synthesized phosphopeptide derived from human HSF1 around the phosphorylation site of serine 303 (P-P-SP-P-P).
All Sites
Human: Ser303
Preparation and Storage
Store at-20 degree C for 1 year

Immunohistochemistry (IHC)

(P-Peptide-+ Immunohistochemical analysis of paraffin-embedded human breast carcinoma tissue using HSF1 (Phospho-Ser303) antibody.)

Immunohistochemistry (IHC) (P-Peptide-+ Immunohistochemical analysis of paraffin-embedded human breast carcinoma tissue using HSF1 (Phospho-Ser303) antibody.)

Western Blot (WB)

(Western blot analysis of extracts from MCF cells untreated or treated with TNF-alpha (20ng/ml, 30mins), using HSF1 (Ab-303) antibody (Line 1 and 2), and HSF1 (Phospho-Ser303) antibody (Line 3 and 4).)

Western Blot (WB) (Western blot analysis of extracts from MCF cells untreated or treated with TNF-alpha (20ng/ml, 30mins), using HSF1 (Ab-303) antibody (Line 1 and 2), and HSF1 (Phospho-Ser303) antibody (Line 3 and 4).)
References
Parvaneh Rafiee, et, al. (2006) Am J Physiol Cell Physiol; 291: C931-C945. Fumika Shinozaki, et, al. (2006) J. Biol. Chem; 281: 16361-16369. Eiichi Takaki, et, al. (2006) J. Biol. Chem; 281: 4931-4937. Jan-Jong Hung, et, al. (1998) J. Biol. Chem; 273: 31924.

NCBI and Uniprot Product Information

NCBI GI #
NCBI GeneID
NCBI Accession #
NCBI GenBank Nucleotide #
UniProt Accession #
Molecular Weight
52,881 Da
NCBI Official Full Name
heat shock factor protein 1
NCBI Official Synonym Full Names
heat shock transcription factor 1
NCBI Official Symbol
HSF1
NCBI Official Synonym Symbols
HSTF1
NCBI Protein Information
heat shock factor protein 1
UniProt Protein Name
Heat shock factor protein 1
Protein Family
UniProt Gene Name
HSF1
UniProt Synonym Gene Names
HSTF 1

NCBI Description

The product of this gene is a transcription factor that is rapidly induced after temperature stress and binds heat shock promoter elements (HSE). This protein plays a role in the regulation of lifespan. Expression of this gene is repressed by phosphorylation, which promotes binding by heat shock protein 90. [provided by RefSeq, Jul 2017]

Uniprot Description

Function as a stress-inducible and DNA-binding transcription factor that plays a central role in the transcriptional activation of the heat shock response (HSR), leading to the expression of a large class of molecular chaperones heat shock proteins (HSPs) that protect cells from cellular insults' damage (PubMed:1871105, PubMed:11447121, PubMed:1986252, PubMed:7760831, PubMed:7623826, PubMed:8946918, PubMed:8940068, PubMed:9341107, PubMed:9121459, PubMed:9727490, PubMed:9499401, PubMed:9535852, PubMed:12659875, PubMed:12917326, PubMed:15016915, PubMed:25963659, PubMed:26754925). In unstressed cells, is present in a HSP90-containing multichaperone complex that maintains it in a non-DNA-binding inactivated monomeric form (PubMed:9727490, PubMed:11583998, PubMed:16278218). Upon exposure to heat and other stress stimuli, undergoes homotrimerization and activates HSP gene transcription through binding to site-specific heat shock elements (HSEs) present in the promoter regions of HSP genes (PubMed:1871105, PubMed:1986252, PubMed:8455624, PubMed:7935471, PubMed:7623826, PubMed:8940068, PubMed:9727490, PubMed:9499401, PubMed:10359787, PubMed:11583998, PubMed:12659875, PubMed:16278218, PubMed:25963659, PubMed:26754925). Activation is reversible, and during the attenuation and recovery phase period of the HSR, returns to its unactivated form (PubMed:11583998, PubMed:16278218). Binds to inverted 5'-NGAAN-3' pentamer DNA sequences (PubMed:1986252, PubMed:26727489). Binds to chromatin at heat shock gene promoters (PubMed:25963659). Plays also several other functions independently of its transcriptional activity. Involved in the repression of Ras-induced transcriptional activation of the c-fos gene in heat-stressed cells (PubMed:9341107). Positively regulates pre-mRNA 3'-end processing and polyadenylation of HSP70 mRNA upon heat-stressed cells in a symplekin (SYMPK)-dependent manner (PubMed:14707147). Plays a role in nuclear export of stress-induced HSP70 mRNA (PubMed:17897941). Plays a role in the regulation of mitotic progression (PubMed:18794143). Plays also a role as a negative regulator of non-homologous end joining (NHEJ) repair activity in a DNA damage-dependent manner (PubMed:26359349). Involved in stress-induced cancer cell proliferation in a IER5-dependent manner (PubMed:26754925).

Research Articles on HSF1

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Product Notes

The HSF1 hsf1 (Catalog #AAA8501707) is an Antibody and is intended for research purposes only. The product is available for immediate purchase. The HSF1 (Phospho-Ser303) Antibody reacts with Human and may cross-react with other species as described in the data sheet. AAA Biotech's HSF1 can be used in a range of immunoassay formats including, but not limited to, Western Blot (WB), Immunohistochemistry (IHC), ELISA (EIA). WB: 1:500~1:1000 IHC: 1:50~1:100 ELISA: 1:20000. Researchers should empirically determine the suitability of the HSF1 hsf1 for an application not listed in the data sheet. Researchers commonly develop new applications and it is an integral, important part of the investigative research process. It is sometimes possible for the material contained within the vial of "HSF1, Antibody" 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

All products in the AAA Biotech catalog are strictly for research-use only, and are absolutely not suitable for use in any sort of medical, therapeutic, prophylactic, in-vivo, or diagnostic capacity. By purchasing a product from AAA Biotech, you are explicitly certifying that said products will be properly tested and used in line with industry standard. AAA Biotech and its authorized distribution partners reserve the right to refuse to fulfill any order if we have any indication that a purchaser may be intending to use a product outside of our accepted criteria.

Disclaimer

Though we do strive to guarantee the information represented in this datasheet, AAA Biotech cannot be held responsible for any oversights or imprecisions. AAA Biotech reserves the right to adjust any aspect of this datasheet at any time and without notice. It is the responsibility of the customer to inform AAA Biotech of any product performance issues observed or experienced within 30 days of receipt of said product. To see additional details on this or any of our other policies, please see our Terms & Conditions page.

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