Urogastrone, URG

Measure by its ability to induce 3T3 cells proliferation.
The ED50 for this effect is 0.05-0.12 ng/mL.
The specific activity of recombinant human EGF is approximately >1.4 x 106 IU/mg.

Epidermal growth factor (EGF) stimulates cell growth and differentiation by binding to its receptor, EGFR. Human EGF is a 6-kDa protein with 53 amino acid residues and three intramolecular disulfide bonds. EGF is present in various body fluids, including blood, milk, urine, saliva, seminal fluid, pancreatic juice, cerebrospinal fluid, and amniotic fluid. Biological activities ascribed to EGF include epithelial development, angiogenesis, inhibition of gastric acid secretion, fibroblast proliferation, and colony formation of epidermal cells in culture.

P01133.2

1950

MNSDSECPLSHDGYCLHDGVCMYIEALDKYACNCVVGYIGERCQYRDLKWWELR with polyhistidine tag at the C-terminus

His-tag?at?the?C-terminus

Human

Human

Escherichia coli

E. coli

>95% as determined by SDS-PAGE.
Ni-NTA chromatography.

<0.1 EU per 1 μg of the protein by the LAL method.

7.16 kDa

The protein was lyophilized from a solution containing 1X PBS, pH 8.0.

It is recommended to reconstitute the lyophilized protein in sterile H2O to a concentration not less than 100 μg/mL and incubate the stock solution for at least 20 min to ensure sufficient re-dissolved.

Blue Ice

Lyophilized protein should be stored at -20°C for 1 year.
Upon reconstitution, store at 2°C to 8°C for up to 1 week. Further dilute in a buffer containing a carrier protein or stabilizer (e.g. 0.1%
BSA, 10%FBS, 5%HSA or 5% trehalose solution), protein aliquots should be stored at -20°C or -80°C for 3-6 months.

Cytokines

Cell culture, Elisa