Recombinant Human KGF/FGF-7 GMP Protein, CF

Catalog #: 251-GMP Datasheet / COA / SDS

Catalog #	Availability	Size / Price	Qty
251-GMP-050
251-GMP-01M

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Recombinant Human KGF/FGF-7 GMP Protein Bioactivity

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Product Details

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Summary Product Datasheets Carrier Free Data Images Reconstitution Calculator Background Related Research Areas

Recombinant Human KGF/FGF-7 GMP Protein, CF Summary

Product Specifications

Purity

>97%, by SDS-PAGE with silver staining, under reducing conditions

Endotoxin Level

<0.10 EU per 1 μg of the protein by the LAL method.

Activity

Measured in a cell proliferation assay using 4MBr‑5 rhesus monkey epithelial cells. Rubin, J.S. et al. (1989) Proc. Natl. Acad. Sci. USA 86:802. The ED₅₀ for this effect is 6-60 ng/mL.
The specific activity of recombinant human KGF/FGF-7 is >8.16 x 10⁵ units/mg, which is calibrated against the human KGF/FGF-7 WHO Standard (NIBSC code: 03/150).

Source

E. coli-derived human KGF/FGF-7 protein
Cys32-Thr194, with an N-terminal Met
Manufactured and tested under cGMP guidelines.

Accession #

P21781.1

N-terminal Sequence
Analysis

Met-(Cys)₃₂-Asn-Asp-Met-Thr-Pro-Glu-Gln-Met
(Cys)₃₂-Asn-Asp-Met-Thr-Pro-Glu-Gln-Met-Ala

Predicted Molecular Mass

19 kDa

SDS-PAGE

20 kDa, reducing conditions

Product Datasheets

251-GMP

Product Datasheet

COA

SDS

Carrier Free

What does CF mean?

CF stands for Carrier Free (CF). We typically add Bovine Serum Albumin (BSA) as a carrier protein to our recombinant proteins. Adding a carrier protein enhances protein stability, increases shelf-life, and allows the recombinant protein to be stored at a more dilute concentration. The carrier free version does not contain BSA.

What formulation is right for me?

In general, we advise purchasing the recombinant protein with BSA for use in cell or tissue culture, or as an ELISA standard. In contrast, the carrier free protein is recommended for applications, in which the presence of BSA could interfere.

251-GMP

Formulation	Lyophilized from a 0.2 μm filtered solution in PBS.
Reconstitution	Reconstitute at 100 μg/mL in PBS.
Shipping	The product is shipped with polar packs. Upon receipt, store it immediately at the temperature recommended below.
Stability & Storage:	Use a manual defrost freezer and avoid repeated freeze-thaw cycles. A minimum of 12 months when stored at ≤ -20 °C as supplied. Refer to lot specific COA for the Use by Date. 1 month, 2 to 8 °C under sterile conditions after reconstitution. 3 months, ≤ -20 °C under sterile conditions after reconstitution.

Scientific Data

Bioactivity

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GMP-grade Recombinant Human KGF/FGF-7 (Catalog # 251-GMP) stimulates pro-liferation of the 4MBr‑5 rhesus monkey epithelial cell line. The ED₅₀ for this effect is 6-60 ng/mL.

SDS-PAGE

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1 μg/lane of GMP-grade Recombinant Human KGF/FGF-7 (Catalog # 251-GMP) was resolved with SDS-PAGE under reducing (R) conditions and visualized by silver staining, showing a single band at 20 kDa.

Reconstitution Calculator

Background: KGF/FGF-7

KGF (keratinocyte growth factor), also known as FGF-7 (fibroblast growth factor-7), is one of 22 known members of the mouse FGF family of secreted proteins that plays a key role in development, morphogenesis, angiogenesis, wound healing, and tumorigenesis (1-4). KGF expression is restricted to cells of mesenchymal origin. When secreted, it acts as a paracrine growth factor for nearby epithelial cells (1). KGF speeds wound healing by being dramatically upregulated in response to damage to skin or internal structures that results in high local concentrations of inflammatory mediators such as IL-1 and TNF-alpha. (2, 5). KGF promotes cell migration and invasion, and mediates melanocyte transfer to keratinocytes upon UVB radiation (6, 7). It has been used ectopically to avoid chemotherapy-induced oral mucositis in patients with hematological malignancies (1). Deletion of KGF affects kidney development, producing abnormally small ureteric buds and fewer nephrons (8). It also impedes hair follicle differentiation (9). The 194 amino acid (aa) KGF precursor contains a 31 aa signal sequence and, like all other FGFs, an ~120 aa beta -trefoil scaffold that includes receptor- and heparin-binding sites. KGF signals only through the IIIb splice form of the tyrosine kinase receptor, FGF R2 (FGF R2-IIIb/KGF R) (10). Receptor dimerization requires an octameric or larger heparin or heparin sulfate proteoglycan (11). FGF-10, also called KGF2, shares 51% aa identity and similar function to KGF, but shows more limited expression than KGF and uses an additional receptor, FGF R2-IIIc (12). Following receptor engagement, KGF is typically degraded, while FGF-10 is recycled (12). Mature human KGF, which is active across species, shares 98% aa sequence identity with bovine, equine, ovine and canine, 96% with mouse and porcine, and 92% with rat KGF, respectively.

References

Finch, P.W. and J.S. Rubin (2006) J. Natl. Cancer Inst. 98:812.
Werner, S. et al. (2007) J. Invest. Dermatol. 127:998.
Werner, S. (1998) Cytokine Growth Factor Rev. 9:153.
Mason, I.J. et al. (1994) Mech. Dev. 45:15.
Geer, D.J. et al. (2005) Am. J. Pathol. 167:1575.
Niu, J. et al. (2007) J. Biol. Chem. 282:6001.
Cardinali, G. et al. (2005) J. Invest. Dermatol. 125:1190.
Qiao, J. et al. (1999) Development 126:547.
Guo, L. et al. (1996) Genes Dev. 10:165.
de Georgi, V. et al. (2007) Dermatol. Clin. 25:477.
Hsu, Y-R. et al. (1999) Biochemistry 38:2523.
Belleudi, F. et al. (2007) Traffic 8:1854.

Long Name

Keratinocyte Growth Factor

Entrez Gene IDs

2252 (Human); 403915 (Canine)

Alternate Names

FGF7; FGF-7; fibroblast growth factor 7HBGF-7; HBGF7; HBGF-7; Heparin-binding growth factor 7; keratinocyte growth factor; KGF; KGFfibroblast growth factor 7 (keratinocyte growth factor)

Manufacturing Specifications

GMP Proteins
R&D Systems, a Bio-Techne Brand's GMP proteins are produced according to relevant sections of the following documents: USP Chapter 1043, Ancillary Materials for Cell, Gene and Tissue-Engineered Products and Eu. Ph. 5.2.12, Raw Materials of Biological Origin for the Production of Cell-based and Gene Therapy Medicinal Products.

R&D Systems' quality focus includes:

Designed, manufactured and tested under an ISO 9001:2015 and ISO 13485:2016 certified quality system
Documented and controlled manufacturing process
Control of documentation and process changes by QA
Personnel training programs
Raw material inspection and vendor qualification/monitoring program
Validated equipment, processes and test methods
Equipment calibration and maintenance schedules using a Regulatory Asset Manager
Facility/Utilities maintenance, contamination controls, safety and pest control programs
Material review process for variances
Robust product stability program following relevant ICH guidelines

R&D Systems strives to provide our customers with the analytical characteristics of each product so that customers may determine whether our products are appropriate for their application. Each product is provided with a lot-specific Certificate of Analysis that contains the product's specifications and test results. Quality control testing may include, but is not limited to:

N-terminal amino acid analysis
SDS-PAGE purity analysis
Molecular weight analysis via mass spectrometry
Endotoxin assessment per USP <85> and Ph. Eur. 2.6.14 guidelines
Bioassay analysis
Microbial testing per USP <71> and Ph. Eur. 2.6.1 guidelines
Host cell protein assessment
Host cell DNA assessment
Mycoplasma assessment

Additional testing and documentation requested by the customer can be arranged at an additional cost.

Production records and facilities are available for examination by appropriate personnel on-site at R&D Systems in Minneapolis and St. Paul, Minnesota USA.

R&D Systems sells GMP grade products for preclinical or clinical ex vivo use. They are not for in vivo use. Please read the following End User Terms prior to using this product.