Recombinant Human NRG1

Neuregulins are EGF-like growth and differentiation factors that signal through tyrosine kinase receptors of the ErbB family. The ErbB2 and ErbB4 receptors cooperate in transmission of neuregulin-1 signals in the heart, whereas ErbB2 and ErbB3 cooperate in neural crest cells.

Product Specifications

CAS Number

9000-83-3

Gene Name

NRG1

Gene Aliases

Acetylcholine receptor-inducing activity, ARIA, Breast cancer cell differentiation factor p45, Glial growth factor, Heregulin, HRG, Neu differentiation factor, Sensory and motor neuron-derived factor<br/>Recombinant Human Neuregulin-1 Beta (NRG1)

Gene ID

3084

Accession Number

Q02297

Organism

Human

Source

E. coli

Concentration

<1.0 EU/μg of recombinant protein as determined by the LAL method.

Purity

>95% as determined by SDS-PAGE

Solubility

A quick spin of the vial followed by reconstitution in distilled water to a concentration not less than 0.1 mg/mL. This solution can then be diluted into other buffers.

Function

The ED(50) was determined by the dose-dependent proliferation of human MCF-7 cells was found to be < 0.3 ng/mL, corresponding to a specific activity of 2.0 x 10^6 Units/mg.

Molecular Weight

Shipping Conditions

Ambient Temperature

Storage Conditions

The lyophilized protein is stable for at least one year from date of receipt at -70°C. Upon reconstitution, this cytokine can be stored in working aliquots at 2° - 8°C for one month, or at -20°C for six months, with a carrier protein without detectable loss of activity. Avoid repeated freeze/thaw cycles.