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87318
Human SCF Recombinant Protein
Cytokines
Growth Factors and Cytokines

Human SCF Recombinant Protein #87318

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Human SCF Recombinant Protein: Image 1
Serial dilutions of Human SCF Recombinant Protein were added to TF-1 cells. Cell proliferation was measured and the linear portion of the curve was used to calculate the ED50.
Human SCF Recombinant Protein: Image 2
The purity of Human SCF Recombinant Protein was determined by SDS-PAGE of 1 µg reduced (+) and non-reduced (-) recombinant hSCF and staining with Coomassie Blue.

Storage

Human SCF Recombinant Protein is supplied as lyophilized material that is very stable at -20°C. It is recommended to reconstitute with sterile water at a concentration of 0.1 mg/ml which can be further diluted in aqueous solutions as needed. Addition of a carrier protein (0.1% HSA or BSA) is recommended for long-term storage.

Product Description

MW (kDa) 18.6
Purity A greater than or equal to 95% purity was determined by SDS-PAGE.
Endotoxin Endotoxin levels are less than or equal to 1 EU / 1 μg hSCF.
Activity The bioactivity of recombinant hSCF was determined in a TF-1 cell proliferation assay. The ED50 of each lot is less than or equal to 15 ng/ml.

Source / Purification

Recombinant human SCF was expressed in E. coli and is supplied in a lyophilized form.

Background

Stem cell factor (SCF) is produced by endothelial cells, fibroblasts, keratinocytes, gut epithelial cells, and tumor cells (1,2). SCF is critical for hematopoiesis and mast cell differentiation and has additional roles in survival and function of other cell types (1). Some tumor cell proliferation and invasiveness are promoted by SCF (3). Tumor-derived SCF appears to be involved in expansion of myeloid-derived suppressor cells that in turn limits proliferation of tumor-infiltrating T cells (4). SCF may have additional roles in the tumor microenvironment (2). SCF is either soluble or an integral membrane protein and the form is dependent on variation in splicing or proteolytic release (1). SCF binds to the receptor tyrosine kinase c-Kit and induces activation of the Akt, Erk, JNK, and p38 pathways (5,6).
  1. Broudy, V.C. (1997) Blood 90, 1345-64.
  2. Huang, B. et al. (2008) Blood 112, 1269-79.
  3. Yasuda, A. et al. (2006) Mol Cancer 5, 46.
  4. Pan, P.Y. et al. (2008) Blood 111, 219-28.
  5. Samayawardhena, L.A. and Pallen, C.J. (2008) J Biol Chem 283, 29175-85.
  6. Huang, H.M. et al. (2000) Blood 96, 1764-71.

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 # 87318
Cat. # Size Qty. Price
87318S
10 µg $ 207