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8406
Human Transforming Growth Factor β2 (hTGF-β2)
Cytokines
Growth Factors and Cytokines
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Human Transforming Growth Factor β2 (hTGF-β2) #8406

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Human Transforming Growth Factor β2 (hTGF-β2): Image 1
The inhibition of IL-4 induced proliferation in HT-2 cells treated with increasing concentrations of hTGF-β2 was assessed. After 48 hour treatment with hTGF-β2, cells were incubated with a tetrazolium salt and the OD450-OD650 was determined.
Human Transforming Growth Factor β2 (hTGF-β2): Image 2
The purity of recombinant hTGF-β2 was determined by SDS-PAGE of 6 µg reduced (+) and non-reduced (-) recombinant hTGF-β2 and staining overnight with Coomassie Blue.
Human Transforming Growth Factor β2 (hTGF-β2): Image 3
Western blot analysis of extracts from HT-1080 cells untreated or treated with TGF-β2 for 15 minutes, using Phospho-Smad2 (Ser465/467) (138D4) Rabbit mAb #3108 (upper) and Smad2 (86F7) Rabbit mAb #3122 (lower).
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Formulation

With carrier: Lyophilized from a 0.22 μm filtered solution of 35% acetonitrile and 0.1% trifluoroacetic acid containing 20 μg BSA per 1 μg hTGF-β2. Carrier free: Lyophilized from a 0.22 μm filtered solution of 35% acetonitrile and 0.1% trifluoroacetic acid.

Storage

Stable in lyophilized state at -20°C for 1 year after receipt. Sterile stock solutions reconstituted with carrier protein are stable at 4°C for 2 months and at -20°C for 6 months. Avoid repeated freeze-thaw cycles.
Maintain sterility. Storage at -20°C should be in a manual defrost freezer.

Product Description

MW (kDa) 12
Purity >98% as determined by SDS-PAGE of 6 μg reduced (+) and non-reduced (-) recombinant hTGF-β2. All lots are greater than 98% pure.
Endotoxin Less than 0.01 ng endotoxin/1 μg hTGF-β2.
Activity The bioactivity of recombinant hTGF-β2 was was determined by assessing inhibition of IL-4 induced HT-2 cell proliferation. The ED50 of each lot is between 0.1-0.3 ng/ml.
Molecular Formula Recombinant hTGF-β2 contains no "tags" and the nonglycosylated protein has a calculated MW of 12,719. DTT-reduced protein migrates as a 12 kDa polypeptide and the non-reduced cystine-linked homodimer migrates as a 24 kDa protein. The expected amino-terminal ALDAA of recombinant hTGF-β2 was verified by amino acid sequencing.

Source / Purification

Recombinant human TGF-β2 (hTGF-β2) Ala303-Ser414 (Accession #NP_003229) was expressed in human 293 cells at Cell Signaling Technology.

Background

TGF-β2 is produced by eosinophils, astrocytes, glioblastoma and other cancer derived cell types (1-6). TGF-β2 inhibits antigen-induced T-cell proliferation, inhibits epithelial cell proliferation, induces mesenchymal cell proliferation and has cell specific effects on apoptosis (1-8). TGF-β2 binds to TβRII and binding is promoted by TβRIII. TβRI then complexes with TβRII and TβRIII (3,5). Signaling involves phosphorylation of the SMAD proteins (2,3,9). TGF-β2 also activates Erk2, p38, and JNK pathways (9). Knockout of TGF-β2 in mice severely impacts heart, lung and eye development (10).
  1. Balzar, S. et al. (2005) J Allergy Clin Immunol 115, 110-7.
  2. Siegel, P.M. and Massagué, J. (2003) Nat Rev Cancer 3, 807-21.
  3. Bierie, B. and Moses, H.L. (2006) Nat Rev Cancer 6, 506-20.
  4. Hinz, S. et al. (2007) Cancer Res 67, 8344-50.
  5. Damstrup, L. et al. (1993) Br J Cancer 67, 1015-21.
  6. Constam, D.B. et al. (1992) J Immunol 148, 1404-10.
  7. Zhang, H. et al. (2008) Immunology 124, 304-14.
  8. Dufour, C. et al. (2008) Am J Physiol Endocrinol Metab 294, E794-801.
  9. Moustakas, A. and Heldin, C.H. (2009) Development 136, 3699-714.
  10. Dünker, N. and Krieglstein, K. (2000) Eur J Biochem 267, 6982-8.

Pathways & Proteins

Explore pathways + proteins related to this product.

Limited Uses

Except as otherwise expressly agreed in a writing signed by a legally authorized representative of CST, the following terms apply to Products provided by CST, its affiliates or its distributors. Any Customer's terms and conditions that are in addition to, or different from, those contained herein, unless separately accepted in writing by a legally authorized representative of CST, are rejected and are of no force or effect.

Products are labeled with For Research Use Only or a similar labeling statement and have not been approved, cleared, or licensed by the FDA or other regulatory foreign or domestic entity, for any purpose. Customer shall not use any Product for any diagnostic or therapeutic purpose, or otherwise in any manner that conflicts with its labeling statement. Products sold or licensed by CST are provided for Customer as the end-user and solely for research and development uses. Any use of Product for diagnostic, prophylactic or therapeutic purposes, or any purchase of Product for resale (alone or as a component) or other commercial purpose, requires a separate license from CST. Customer shall (a) not sell, license, loan, donate or otherwise transfer or make available any Product to any third party, whether alone or in combination with other materials, or use the Products to manufacture any commercial products, (b) not copy, modify, reverse engineer, decompile, disassemble or otherwise attempt to discover the underlying structure or technology of the Products, or use the Products for the purpose of developing any products or services that would compete with CST's products or services, (c) not alter or remove from the Products any trademarks, trade names, logos, patent or copyright notices or markings, (d) use the Products solely in accordance with CST's Product Terms of Sale and any applicable documentation, and (e) comply with any license, terms of service or similar agreement with respect to any third party products or services used by Customer in connection with the Products.

For Research Use Only. Not For Use In Diagnostic Procedures.
Cell Signaling Technology is a trademark of Cell Signaling Technology, Inc.
To Purchase # 8406LF
Product # Size Price
8406LF		 10 µg  (Carrier Free) $ 227

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