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Home / Primary Antibodies / Polyclonal Antibodies

HSP27 Antibody (pSer15) - SPC-1263

BHA11916956
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Swissprot P04792
Accession Number NP_001531.1
Gene Id 3315
Target HSP27 (pSer15)
Research Area Contractility |Cancer, Cell Signaling, Chaperone Proteins, Microfilaments, Actin, Actin Assembly, Microtubules, Cancer, Tumor Biomarkers, Cardiovascular System, Atherosclerosis, Heart, Heat Shock, Protein Trafficking, Cytoskeleton
Buffer PBS pH 7.4, 50% glycerol, 150mM NaCl, 0.02% sodium azide
Dilutions WB (1:1000), IHC (1:100), ICC/IF (1:200); optimal dilutions for assays should be determined by the user.
Purification Peptide Affinity Purified
Purity Ubiquituous.
Scientific Background HSP27s belong to an abundant and ubiquitous family of small heat shock proteins (sHSP). It is an important HSP found in both normal human cells and cancer cells. The basic structure of most sHSPs is a homologous and highly conserved amino acid sequence, with an alpha-crystallin domain at the C-terminus and the WD/EPF domain at the less conserved N-terminus. This N-terminus is essential for the development of high molecular oligomers (1, 2). HSP27-oligomers consist of stable dimers formed by as many as 8-40 HSP27 protein monomers (3). The oligomerization status is connected with the chaperone activity: aggregates of large oligomers have high chaperone activity, whereas dimers have no chaperone activity (4). HSP27 is localized to the cytoplasm of unstressed cells but can redistribute to the nucleus in response to stress, where it may function to stabilize DNA and/or the nuclear membrane. Other functions include chaperone activity (as mentioned above), thermo tolerance in vivo, inhibition of apoptosis, and signal transduction. Specifically, in vitro, it acts as an ATP-independent chaperone by inhibiting protein aggregation and by stabilizing partially denatured proteins, which ensures refolding of the HSP70 complex. HSP27 is also involved in the apoptotic signaling pathway because it interferes with the activation of cytochrome c/Apaf-1/dATP complex, thereby inhibiting the activation of procaspase-9. It is also hypothesized that HSP27 may serve some role in cross-bridge formation between actin and myosin (5). And finally, HSP27 is also thought to be involved in the process of cell differentiation. The up-regulation of HSP27 correlates with the rate of phosphorylation and with an increase of large oligomers. It is possible that HSP27 may play a crucial role in termination of growth (6). Looking for more information on HSP27 Visit our new HSP27 Scientific Resource Guide at http://www.HSP27.com.
Shipping Temperature Blue Ice or 4°C
Specificity Detects endogenous levels of HSP27only when phosphorylated at serine 15.
Storage -20ºC
Storage Buffer PBS pH 7.4, 50% glycerol, 150mM NaCl, 0.02% sodium azide *Storage buffer may change when conjugated
Storage Temperature -20°C
Applications IHC, WB, ICC/IF
Description WB ; IHC ; ICC ; IF
Dilution WB (1:1000), IHC (1:100), ICC/IF (1:200); optimal dilutions for assays should be determined by the user.
Product Manual SDS
SDS
Reference 1. Kim K.K., Kim R., and Kim, S. (1998) Nature 394(6693): 595-599.

2. Van Montfort R., Slingsby C., and Vierling E. (2001) Addv Protein Chem. 59: 105-56.

3. Ehrnsperger M., Graber S., Gaestel M. and Buchner J. (1997) EMBO J. 16: 221-229.

4. Ciocca D.R., Oesterreich S., Chamness G.C., McGuire W.L., and Fugua S.A. (1993) J Natl Cancer Inst. 85 (19): 1558-70.

5. Sarto C., Binnz P.A., and Mocarelli P. (2000) Electrophoresis. 21(6): 1218-26.

6. Arrigo A.P. (2005) J Cell Biochem. 94(2): 241-6.
Combination SKU Supplier No. Conjugate Size Your price Quantity
BHA11916956-1 SPC-1263D Unconjugated 100 ul $286
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BHA11916956-2 SPC-1263D-A390 ATTO 390 100 ul $340
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BHA11916956-3 SPC-1263D-A488 ATTO 488 100 ul $339
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BHA11916956-4 SPC-1263D-A594 ATTO 594 100 ul $339
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BHA11916956-5 SPC-1263D-BI Biotin 100 ul $334
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BHA11916956-6 SPC-1263D-FITC FITC 100 ul $330
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