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Human FGF-5 Recombinant Protein
Cytokines & Growth Factors
Growth Factors and Cytokines

Human FGF-5 Recombinant Protein #66646

Citations (0)
Serial dilutions of Human FGF-5 Recombinant Protein were added to NR6R-3T3 cells. Cell proliferation was measured and the linear portion of the curve was used to calculate the ED50.
The purity of Human FGF-5 Recombinant Protein was determined by SDS-PAGE of 1 µg reduced (+) and non-reduced (-) recombinant hFGF-5 and staining with Coomassie Blue.


Human FGF-5 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.

Once in solution, store at 4°C and use within 1 month, or store at -20ºC to -80ºC and use within 3 months to prevent loss of potency. Aliquot to avoid multiple freeze/thaw cycles if storing reconstituted material at -20ºC to -80ºC.

Product Description

MW (kDa) 27.7
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 hFGF-5.
Activity The bioactivity of recombinant hFGF-5 was determined in an NR6R-3T3 cell proliferation assay. The ED50 of each lot is less than or equal to 10 ng/mL.

Source / Purification

Recombinant human FGF-5 was expressed in E. coli and is supplied in a lyophilized form.


FGF-5 is a member of the large and diverse fibroblast growth factor (FGF) family of peptide growth factors. FGF-5 binds to receptor FGFR1 and functions as a signaling molecule that plays a critical role in the regulation of the hair cycle (1,2). Mutations in FGF5 exhibit familial trichomegaly, a condition that involves a significant increase in the anagen phase of the hair growth cycle as well as extremely long eyelashes (1). FGF-5 also plays an important role in androgenetic alopecia as demonstrated in a genome-wide association study of men with early onset of this disease. Polymorphisms in FGF-5 have a strong association with the biology of male pattern hair loss (3). Clinical studies have shown that topical application of formulations containing FGF-5 are beneficial to men and women experiencing hair loss (4).

Limited Uses

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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 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 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.
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To Purchase # 66646
Cat. # Size Qty. Price
10 µg