SDS-Page
(SDS-PAGE of 28kDa Hsp27 protein (SPR-105).)
Hsp27 Recombinant Protein | HSPB1 recombinant protein
Recombinant Human HSP27
Gene Names
HSPB1; CMT2F; HMN2B; HSP27; HSP28; Hsp25; SRP27; HS.76067; HEL-S-102
Reactivity
Human
Applications
Western Blot, ELISA
Synonyms
Hsp27; Recombinant Human HSP27; 28kDa heat shock protein; CMT2F; Hsp25; Hsp28; HspB1; SRP27; HSPB1 recombinant protein
Host
Human
Reactivity
Human
Form/Format
Affinity Purified using His tag
Concentration
1mg/mL (varies by lot)
Sequence Length
781
Applicable Applications for HSPB1 recombinant protein
WB control, Binding Assay, ELISA reference standard
Certificate of Analysis
This product has been certified >90% pure using SDS-PAGE analysis.
Conjugate Tag
His tag
Expression System
E Coli
Storage Buffer
50mM Tris/HCl, pH 8, 0.3M NaCl
Preparation and Storage
-20 degree C
SDS-Page
(SDS-PAGE of 28kDa Hsp27 protein (SPR-105).)
SDS-Page
(SDS-PAGE of 28kDa Hsp27 protein (SPR-105).)
Related Product Information for HSPB1 recombinant protein
Background Info: Molecular weight of approximately 27kDa
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).
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).
Product Categories/Family for HSPB1 recombinant protein
References
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.
1. Conway, M., Nafar, F., Straka, T., Mearow, K. (2014). Modulation of Amyloid-β Protein Precursor Expression by HspB1. J Alzheimers Dis. [link here]
1. Conway, M., Nafar, F., Straka, T., Mearow, K. (2014). Modulation of Amyloid-β Protein Precursor Expression by HspB1. J Alzheimers Dis. [link here]
NCBI and Uniprot Product Information
NCBI GI #
NCBI GeneID
Molecular Weight
27kD
NCBI Official Full Name
Homo sapiens heat shock 27kDa protein 1, mRNA
NCBI Official Synonym Full Names
heat shock 27kDa protein 1
NCBI Official Symbol
HSPB1
NCBI Official Synonym Symbols
CMT2F; HMN2B; HSP27; HSP28; Hsp25; SRP27; HS.76067; HEL-S-102
NCBI Protein Information
heat shock protein beta-1; HSP 27; 28 kDa heat shock protein; heat shock 27 kDa protein; heat shock 27kD protein 1; stress-responsive protein 27; estrogen-regulated 24 kDa protein; epididymis secretory protein Li 102
UniProt Protein Name
Heat shock protein beta-1
Protein Family
UniProt Gene Name
HSPB1
UniProt Synonym Gene Names
HSP27; HSP28; HspB1; HSP 27; SRP27
UniProt Entry Name
HSPB1_HUMAN
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Product Notes
The HSPB1 hspb1 (Catalog #AAA806949) is a Recombinant Protein produced from Human and is intended for research purposes only. The product is available for immediate purchase. The Recombinant Human HSP27 reacts with Human and may cross-react with other species as described in the data sheet. AAA Biotech's Hsp27 can be used in a range of immunoassay formats including, but not limited to, WB control, Binding Assay, ELISA reference standard. Researchers should empirically determine the suitability of the HSPB1 hspb1 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 "Hsp27, Recombinant Protein" 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.Item has been added to Shopping Cart
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