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Stock availability
In Stock
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Kit s description
Colorimetric detection of HSP27
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Protein target
HSP27
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Scientific context
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), thermotolerance invivo, 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 more.
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Primary research area
Cancer, Heat Shock
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Category
Assay ELISA Kits
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Other name
28kDa heat shock protein ELISA Kit, CMT2F ELISA Kit, HSP25 ELISA Kit, HSP27 ELISA Kit, HSP28 ELISA Kit, HSPB1 ELISA Kit, SRP27 ELISA Kit
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Brand name
StressXpress®
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Detection system
Colorimetric Assay
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Assay format
Sandwich ELISA (Enzyme-linked Immunosorbent Assay)
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Main intended usage
ELISA kit used to quantitate HSP27 concentration in samples.
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Brief protocol
1. Prepare Standard and samples in Standard and Sample Diluent. 2. Add 100 µL of Standard or sample to appropriate wells. 3. Cover plate with Plate Sealer and incubate at room temperature (20-25°C) for 1 hour. 4. Wash plate four times with 1X Wash Buffer. 5. Add 100 µL of Biotinylated Antibody Working Solution to each well. 6. Cover plate with Plate Sealer and incubate at room temperature for 1 hour. 7. Wash plate four times with 1X Wash Buffer. 8. Add 100 µL of Streptavidin-HRP Working Solution to each well. 9. Cover plate with Plate Sealer and incubate at room temperature for 30 minutes. 10. Wash plate four times with 1X Wash Buffer. 11. Add 100 µL of TMB Substrate to each well. 12. Develop the plate in the dark at room temperature for 30 minutes. 13. Stop reaction by adding 100 µL of Stop Solution to each well. 14. Measure absorbance on a plate reader at 450 nm.
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Kit contents
Anti-Hsp27 Immunoassay Plate, 5X Hsp27 Extraction Reagent, Recombinant Hsp27 Standard, Standard and Sample Diluent, 10X Wash Buffer Concentrate, Anti-Hsp27 Biotinylated Antibody Concentrate, Anti-Hsp27 Biotinylated Antibody Diluent, Streptavidin: HRP Concentrate, Streptavidin: HRP Diluent, TMB Substrate, Stop Solution
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Assay precision
Contact us
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Assay cross reactivity
Human
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Samples to be used with this kit
Serum, Plasma, Cell Lysates, Tissue
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Maximum samples to be used with this kit
40 samples in duplicate
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Assay duration
30 minutes
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Kit s sensitivity
0,04 ng/ml
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Assay detection limit
0,2 - 13 ng/ml
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Storage recommendations
4°C
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Shipping recommendations
Blue Ice
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Bibliography
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.
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Release date
2-Feb-2011
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PubMed number
27112486
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Tested applications
ELISA
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Tested reactivity
Human
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Resources available upon request
Kit Booklet, MSDS
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Product image legend
Typical Standard Curve for the HSP27 ELISA Kit (Enzyme-Linked Immunosorbent Assay) StressXpress® - SKT-109. Assay Type: Sandwich ELISA. Detection Method: Colorimetric Assay. Assay Range: 0.2 - 13 ng/mL. Graph of the Typical Standard Curve for the HSP27 ELISA Kit StressXpress - SKT-109
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Warnings
Non-hazardous
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Country of production
Canada
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Total weight kg
2
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Net weight g
2500
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Properties
E05 478 566 350 170 or Enzyme-Linked Immunosorbent Assays, E05 478 566 350 170 or Enzyme-Linked Immunosorbent Assays
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Test
ELISA Enzyme-linked immunosorbent assays Code 90320007 SNOMED
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Gene target
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Gene symbol
HSPB1
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Short name
HSP27 ELISA Kit
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Technique
ELISA kit, ELISA, ELISAs Enzyme-linked immunosorbent assay 90320007 SNOMED code are used by the medical researcher for detection of human, mouse, … proteins are supplied in coated 96 well plates to be stored at +4°C. ELISA test kits can be sandwich ELISA. In sandwich ELISAS Enzyme-linked immunosorbent assay 9we use captor and detector antibodies. In single antibody ELISAs the antigen is coated and only a detector antibody is used. Traditional competition antigen ELISAs are coated with a captor antibody and a competitive antigen is labelled with the chromogen. In this case the ratio on your graph will be inverse proportional with the antigen present in your sample. A sign detected by the Colorimetric detection OD optical density absorbance at 450 nm between 0 and 4 with an ELISA reader for 450 nm absortion. Genprice Inc. the recognized authority tax ID 45-4304622 D-U-N-S number - 078440800. MeSH code E05 478 566 350 170 Enzyme-Linked Immunosorbent Assay. PROMT code 3841327 Immunoabsorbent assay tests. ELISA tests are enzyme linked immunoassays to detect human, mouse or other proteins in serum, plasma, urine or biological fluids. MeSH code E05 478 566 350 170 for Enzyme-Linked Immunosorbent Assay or ELISA kits. Also Enzyme-linked immunoassay, competitive have the SNOMED name 61461007 and the PROMT code for ELISA readers is 3841330. This is the desigation of other diagnostic analyzers and tests.
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Host
antigen assay ELISA kit 1 Kit (96 Wells)
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Alternative name
HSP27 Enzyme-linked immunosorbent assay reagent
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Alternative technique
elisas, kits
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Alternative to gene target
v-kit Hardy-Zuckerman 4 feline sarcoma viral oncogene homolog, C-Kit and CD117 and PBT and SCFR, KIT and IDBG-18980 and ENSG00000157404 and 3815, transferase activity, Extracellular, Kit and IDBG-172083 and ENSMUSG00000005672 and 16590, KIT and IDBG-642326 and ENSBTAG00000002699 and 280832
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