Human Recombinant HSP27 Protein

  • Catalog number
    SPR-105A
  • Price
    Please ask
  • Size
    50 µg
  • Stock availability
    In Stock
  • 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 α-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 more.
  • Protein target
    HSP27
  • Protein reactivity
    Human
  • Certificate of analysis
    This product has been certified >90% pure using SDS-PAGE analysis.
  • Protein description
    Human Recombinant HSP27 Protein
  • Other name
    28kDa heat shock Protein, CMT2F Protein, HSP25 Protein, HSP27 Protein, HSP28 Protein, HSPB1 Protein, SRP27 Protein
  • Primary research area
    Cancer, Heat Shock
  • Category
    Protein
  • Brand name
    none
  • Origin
    Recombinant
  • NCBI number
    BC012768
  • Gene number
    3315
  • Protein number
    P04792
  • Verified applications
    WB, SDS-PAGE, Functional Assay, ELISA
  • Relevant bio activity
    HSP27 Protein
  • Protein expression model
    E. coli
  • Protein charasterics
    See included datasheet.
  • Peptide sequence
    See included datasheet.
  • Protein purification
    Affinity Purified
  • Purity pourcentage
    >90% High purity
  • Recommended buffer for storage
    50mM Tris/HCl, pH8, 0.3M NaCl
  • Protein concentration
    Lot/batch specific. See included datasheet.
  • Protein specificity
    ~27 kDa
  • Protein tag
    His tag
  • Storage recommendations
    -20°C
  • Shipping recommendations
    Blue Ice or 4°C
  • Supplementary useful information
    Please see included datasheet or contact us
  • Protein cell localization
    Cytoplasm, Nucleus
  • 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.
  • Release date
    1-Sep-2007
  • PubMed number
    24898650
  • Tested applications
    to be tested
  • Tested species reactivity
    to be tested
  • Representative figure legend
    SDS-PAGE of 28kDa Hsp27 protein (SPR-105). SDS-Page of human HSP27 Protein (SPR-105)
  • Warnings
    Non-hazardous materials
  • Protein origin
    Canada
  • Total weight kg
    1.4
  • Net weight g
    0.05
  • Properties
    Human proteins, cDNA and human recombinants are used in human reactive ELISA kits and to produce anti-human mono and polyclonal antibodies. Modern humans (Homo sapiens, primarily ssp. Homo sapiens sapiens). Depending on the epitopes used human ELISA kits can be cross reactive to many other species. Mainly analyzed are human serum, plasma, urine, saliva, human cell culture supernatants and biological samples.
  • Source
    Recombinants or rec. proteins
  • Group
    recombinants
  • Gene target
    HSP27   Protein  
  • Gene symbol
    HSPB1
  • Short name
    Recombinant HSP27 Protein
  • Technique
    Recombinant, E. coli recombinant proteins are genetic recombinations in Escherichia coli, supplied as white sterile powder lyopillized. StressMark proteins advises they will be reconstituted in a buffer soluion or culture medium for cell culture.
  • Species
    Human, Humans
  • Alternative name
    H. sapiens Rec. HSP27 Protein
  • Alternative technique
    rec
Gene info
MeSH Data
  • Name
  • Concept
    Scope note: The initial culturing of cells derived directly from fresh TISSUES.
  • Tree numbers
    • E01.370.225.500.223.500
    • E05.200.500.265.500
    • E05.242.223.500
    • E05.481.500.249.500
  • Qualifiers
    ethics, trends, veterinary, history, classification, economics, instrumentation, methods, standards, statistics & numerical data
Product images
Similar products
Filters
Contact
Chat with gentaur.com employee