Human EGF Bioactive Protein Product Attributes
Product Type: Bioactive Protein
Recombinant EGF based upon sequence from Human
Host: QP10582 protein expressed in Pichia Pastoris.
Available Tags: Untagged
Protein Construction: A cDNA sequence encoding the sequence of EGF was constructred and used to recombinantly synthesize the protein.
Recommended Applications: Bioactive
Recommended Reconstitution Instructions: 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.
Bioactivity Data: 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 10,000,000Units/mg.
Amino Acid Sequence: NSDSECPLSH DGYCLHDGVC MYIEALDKYA CNCVVGYIGE RCQYRDLKWW ELR
Purity: Greater than 95.0% as determined by(a) Analysis by RP-HPLC. (b) Analysis by SDS-PAGE.
Concentration of Human EGF Protein: Protein quantitation was carried out by two independent methods1. UV spectroscopy at 280 nm using the absorbency value of 2.858 as the extinction coefficient for a 0.1% (1 mg/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.
Endotoxin Levels: < 1.0 EU per ug protein as determined by the LAL method.
Buffer: Each lyophilized mg contains 0.15M NaCl, 0.025M sodium bicarbonate, pH 7.5.
Storage Conditions: 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.
Physical Appearance: Sterile Filtered White lyophilized (freeze-dried) powder.
Limitations and Performance Guarantee
enQuire Bio's products are guaranteed and approved for RESEARCH USE ONLY or manufacturing purposes. This product may not be used as a pharmaceutical agent, or other product intended for human consumption without meeting additional regulatory requirements. This product is guaranteed to work for a period of two years when stored at -70C or colder, and one year when aliquoted and stored at -20C.