Fully biologically active when compared to standard. The ED50 determined by a cell proliferation assay using serum free human MCF-7 cells is less than 83 ng/ml, corresponding to a specific activity of >, 1.2 × 104 IU/mg.
Pureté
> 96 % by SDS-PAGE and HPLC analyses.
niveau d'endotoxine
Level Less than 1EU/µg of rHuNRG-1 as determined by LAL method
Restrictions
For Research Use only
Format
Lyophilized
Reconstitution
We recommend that this vial be briefly centrifuged prior to opening to bring the contents to the bottom. Reconstitute in sterile distilled water or aqueous buffer containing 0.1% BSA to a concentration of 0.1-1.0 mg/mL. Stock solutions should be apportioned into working aliquots and stored at < -20 °C. Further dilutions should be made in appropriate buffered solutions.
Stock
4 °C
Antigène
NRG-1 EGF-Like Domain (NRG-1beta2)
Sujet
Neuregulin is a signaling protein for ErbB2/ErbB4 receptor heterodimers on the cardiac muscle cells, playing an important role in heart structure and function through inducing ErbB2/ErbB4 receptor phosphorylation and cardiomyocyte differentiation. Research on molecular level discovered that recombinant neuregulin could make disturbed myocardial cell structure into order and strengthen the connection between myocardial cells by intercalated discs re-organization. Synonym: NRG-1 EGF-like domain (NRG-1beta2), Human. Formulation: Lyophilized from a 0.2µm filtered concentrated solution in PBS, pH 7.4.
Poids moléculaire
7,005 Da, a single non-glycosylated polypeptide chain containing 61 amino acids.