Recombinant Human HSP27 Protein, CF Summary
Product Specifications
Optimal dilutions should be determined by each laboratory for each application.
Thr2-Lys205, with a C-terminal 6-His tag
Analysis
Product Datasheets
1580-HS
Carrier Free
CF stands for Carrier Free (CF). We typically add Bovine Serum Albumin (BSA) as a carrier protein to our recombinant proteins. Adding a carrier protein enhances protein stability, increases shelf-life, and allows the recombinant protein to be stored at a more dilute concentration. The carrier free version does not contain BSA.
In general, we advise purchasing the recombinant protein with BSA for use in cell or tissue culture, or as an ELISA standard. In contrast, the carrier free protein is recommended for applications, in which the presence of BSA could interfere.
1580-HS
| Formulation | Supplied as a 0.2 μm filtered solution in HEPES, NaCl and DTT. |
| Shipping | The product is shipped with dry ice or equivalent. Upon receipt, store it immediately at the temperature recommended below. |
| Stability & Storage: | Use a manual defrost freezer and avoid repeated freeze-thaw cycles.
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Background: HSP27
Heat shock proteins (HSPs) are a family of highly conserved stress response proteins. Heat shock proteins function primarily as molecular chaperones by facilitating the folding of other cellular proteins, preventing protein aggregation or targeting improperly folded proteins to specific degradative pathways. HSPs are typically expressed at low levels under normal physiological conditions but are dramatically up-regulated in response to cellular stress. Elevated levels of HSPs have been observed in association with ischemia/reperfusion, cancer, and chronic heart failure. HSP27 is a member of the small heat shock protein family, which also includes HSP25 and the alpha -crystallins. HSP27 forms a large oligomer and the extent of phosphorylation plays a role in determining specific functions. HSP27 also functions as an anti-apoptotic molecule, regulating apoptosis through direct interaction with key components of the apoptotic pathway. HSP27 binds and sequesters cytochrome c released from the mitochondria in response to an apoptotic stimulus. This prevents the proper assembly of the apoptosome and subsequently, the activation of procaspase-9 and procaspase-3.
- Gusev, N.B. et al. (2002) Biochemistry (Moscow) 67:511.
- Garrido, C. et al. (2001) Biochem. Biophys. Res. Commun. 286:433.
- Garrido, C. (2002) Cell Death Diffr. 9:483.
- Brvey, J-M. et al. (2000) Nat. Cell Biol. 2:645.
Citation for Recombinant Human HSP27 Protein, CF
R&D Systems personnel manually curate a database that contains references using R&D Systems products. The data collected includes not only links to publications in PubMed, but also provides information about sample types, species, and experimental conditions.
1 Citation: Showing 1 - 1
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Porphyromonas gingivalis activates Heat-Shock-Protein 27 to drive a LC3C-specific probacterial form of select autophagy that is redox sensitive for intracellular bacterial survival in human gingival mucosa
Authors: Wellslager, B;Roberts, J;Chowdhury, N;Madan, L;Orellana, E;Yilmaz, Ö;
bioRxiv : the preprint server for biology
Species: Human
Sample Types: Whole Cells
Applications: Bioassay
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