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Epiregulin (EREG), human recombinant

A ligand of EGFR, and most members of the ERBB family
Catalog #: 4069
SKU-Size Size Price Qty
4069-25 25 μg
4069-1000 1 mg
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Product Details

Alternate Name Epiregulin, EREG
Gene Symbol EREG
Gene ID 2069
Accession # O14944
Source E. coli
Appearance Lyophilized protein
Physical Form Description Sterile filtered and lyophilized from 0.5 mg/ml solution containing 20 mM PBS, pH 7.4 and 130 mM NaCl.
Molecular Weight 6.0 kDa
Purity by SDS-PAGE ≥97%
Purity by ≥97%
Endotoxin Level <0.1 ng/μg
Biological Activity The ED₅₀ as dertermined by the dose-dependent stimulation of the proliferation of murine balb/3T3 cells is <2.0 ng/ml, corresponding to a specific activity of >5 x 10⁵ units/mg
Reconstitution Instructions Reconstitute in sterile H₂O to 0.1–1 mg /ml. The solution can then further diluted to other aqueous solutions.
Handling Centrifuge the vial prior to opening.
Storage Conditions -20°C
Shipping Conditions Gel Pack
USAGE For Research Use Only! Not to be used in humans


Epiregulin is part of the EGF family. Epiregulin functions as a ligand of EGFR, as well as a ligand of most members of the ERBB (v-erb-b2 oncogene homolog) family of tyrosine-kinase receptors. Epiregulin is expressed mostly in the placenta and peripheral blood leukocytes and in specific carcinomas of the bladder, lung, kidney and colon. Epiregulin stimulates the proliferation of keratinocytes, hepatocytes, fibroblasts and Vascular smooth muscle cells. Epiregulin inhibits the growth of several tumor-derived epithelial cell lines. Human Epiregulin is initially synthesized as a glycosylated 19.0 kDa transmembrane precursor protein, which is processed by proteolytic cleavage to produce a 6.0 kDa mature secreted sequence. Recombinant human EREG produced in E.Coli is a single, non-glycosylated, polypeptide chain containing 50 amino acids and having a molecular mass of 6 kDa.

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