- Description
- Specifications
Catalog #: CYT-217
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.
Synonyms:
Urogastrone, URG, EGF.
Source:
Escherichia Coli.
Amino Acid Sequence:
NSDSECPLSH DGYCLHDGVC MYIEALDKYA CNCVVGYIGE RCQYRDLKWW ELR.
Purity:
Greater than 98.0% as determined by:
(a) Analysis by SEC-HPLC.
(b) Analysis by SDS-PAGE.
Solubility:
It is recommended to reconstitute the lyophilized Epidermal Growth Factor in sterile 18MΩ–cm H2O not less than 100 µg/ml, which can then be further diluted to other aqueous solutions.
Formulation:
The protein was lyophilized from a concentrated (1mg/ml) solution containing PBS pH-7.4.
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.
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.
Physical Appearance:
Sterile Filtered White lyophilized (freeze-dried) powder.
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.
Usage:
Denovo Biotechnology'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.
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
