prospec

EGF Human

  • Name
  • Description
  • Pricings
  • Quantity
  • EGF Human
  • Epidermal Growth Factor Human Recombinant
  • Shipped at Room temp.

Catalogue number

CYT-217

Synonyms

Urogastrone, URG, EGF.

Introduction

Epidermal growth factor has a profound effect on the differentiation of specific cells in vivo and is a potent mitogenic factor for a variety of cultured cells of both ectodermal and mesodermal origin. The EGF precursor is believed to exist as a membrane-bound molecule which is proteolytically cleaved to generate the 53-amino acid peptide hormone that stimulates cells to divide. EGF stimulates the growth of various epidermal and epithelial tissues in vivo and in vitro and of some fibroblasts in cell culture.

Description

Epidermal Growth Factor Human Recombinant produced in E.Coli is a single, non-glycosylated, polypeptide chain containing 53 amino acids and having a molecular mass of 6222 Dalton.
The EGF is purified by proprietary chromatographic techniques.

Source

Escherichia Coli.

Physical Appearance

Sterile Filtered White lyophilized (freeze-dried) powder.

Formulation

The protein was lyophilized from a concentrated (1mg/ml) solution containing PBS pH-7.4.

Solubility

It is recommended to reconstitute the lyophilized Epidermal Growth Factor in sterile 18MΩ-cm H2O not less than 100µg/ml, which can then be further diluted to other aqueous solutions.

Stability

Lyophilized Epidermal Growth Factor Recombinant although stable at room temperature for 3 weeks, should be stored desiccated below -18°C. Upon reconstitution EGF should be stored at 4°C between 2-7 days and for future use below -18°C.
For long term storage it is recommended to add a carrier protein (0.1% HSA or BSA).
Please prevent freeze-thaw cycles.

Purity

Greater than 98.0% as determined by:
(a) Analysis by HPLC.
(b) Analysis by SDS-PAGE.

Amino acid sequence

NSDSECPLSH DGYCLHDGVC MYIEALDKYA CNCVVGYIGE RCQYRDLKWW ELR.

Biological Activity

The ED50, calculated by the dose-dependant proliferation of murine BALB/c 3T3 cells (measured by 3H-thymidine uptake) is < 0.1 ng/ml corresponding to a specific activity of 1 x 10,000,000 Units/mg.

Protein content

EGF quantitation was carried out by two independent methods:
1. UV spectroscopy at 280 nm using the absorbency value of 2.858 as the extinction coefficient for a 0.1% (1mg/ml) solution. This value is calculated by the PC GENE computer analysis program of protein sequences (IntelliGenetics).
2. Analysis by RP-HPLC, using a calibrated solution of EGF as a Reference Standard.

References

1.Title:Activation of the Hedgehog pathway in pilocytic astrocytomas.
Publication:Neuro Oncol (2010) 12 (8): 790-798. doi: 10.1093/neuonc/noq026 First published online: March 11, 2010
Link:http://neurooncology.oxfordjournals.org/content/12/8/790.full

2.Title:Evaluation of bioactivity and effect of polymeric stabilizers during heat treatment for the unfolded fraction of human epidermal growth factor.
Publication:SEN'I GAKKAISHI vol.67,nov.8(2011)
Link:http://www.jstage.jst.go.jp/article/fiber/67/8/185/_pdf

3.Title:GPR56 is essential for testis development and male fertility in mice.
Publication:Article first published online: 27 OCT 2010 DOI: 10.1002/dvdy.22468
Link:http://onlinelibrary.wiley.com/doi/10.1002/dvdy.22468/full

4.Title:Changing the Receptor Specificity of Anthrax Toxin.
Publication:doi: 10.1128/?mBio.00088-12 1 May 2012 mBio vol. 3 no. 3 e00088-12
Link:http://mbio.asm.org/content/3/3/e00088-12.full

5.Title:Characterization of Non-Specific Cytotoxic Cell Receptor Protein 1: A New Member of the Lectin-Type Subfamily of F-Box Proteins.
Publication:Kallio H, Tolvanen M, J?nis J, Pan P-w, Laurila E, et al. (2011) Characterization of Non-Specific Cytotoxic Cell Receptor Protein 1: A New Member of the Lectin-Type Subfamily of F-Box Proteins. PLoS ONE 6(11): e27152. doi:10.1371/journal.pone.0027152
Link:http://www.plosone.org/article/info%3Adoi%2F10.1371%2Fjournal.pone.0027152

6. Title: Cancer-Associated Carbonic Anhydrases IX and XII: Effect of Growth Factors on Gene Expression in Human Cancer Cell Lines.
Publication: Journal of Cancer Molecules 5(3): 73-78, 2010.  

7. Title: EGR-1 activation by EGF inhibits MMP-9 expression and lymphoma growth
Publication:   Blood 116.5 (2010): 759-766.
Link: http://www.bloodjournal.org/content/116/5/759.long?sso-checked=true   

Usage

ProSpec's products are furnished for LABORATORY RESEARCH USE ONLY. The product may not be used as drugs, agricultural or pesticidal products, food additives or household chemicals.
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