rHuEpiregulin; EREG; EPR

Human

E. coli

O14944

2069

Approximately 5.6 kDa

VAQVSITKCS SDMNGYCLHG QCIYLVDMSQ NYCRCEVGYT GVRCEHFFL

The ED₅₀ is <2 ng/mL as measured by murine Ballb/c 3T3 cells, corresponding to a specific activity of >5 × 10⁵ units/mg.

Lyophilized powder.

Lyophilized after extensive dialysis against PBS, pH 7.4.

<1 EU/μg, determined by LAL method.

Reconstitute the lyophilized recombinant Human Epiregulin (rHuEpiregulin) to 0.1-1.0 mg/mL using sterile distilled water or aqueous buffer containing 0.1 % BSA.

Lyophilized recombinant Human Human Epiregulin (rHuEpiregulin) is stored at -20°C. After reconstitution, it is stable at 4°C for 1 week or -20°C for longer. It is recommended to freeze aliquots at -20°C or -80°C for extended storage.

Room temperature in continental US; may vary elsewhere.

The human epiregulin gene encoded a 163-residue putative transmembrane precursor containing an EGF-like domain in the internal segment, and the structural organization was similar to that of other members of the EGF family that bind to EGF receptors. Epiregulin has certain characteristics that are different from those of the classical members of the EGF family, EGF and transforming growth factor alpha, including mitogenic responses on several normal cells and binding to EGF receptors on epidermoid carcinoma A431 cells. Northern blot analysis shows the expression of human epiregulin to be mainly on peripheral blood macrophages and the placenta in normal tissues, and is highest on epithelial tumour cell lines in various types of tumour cell lines. Epiregulin is involved in certain physiological processes such as maintenance or development of normal cell growth, and the progression of carcinomas.