Name : HRG1-β1, Human
Product Concentration :
Background :
Heregulin1-Beta1(HRG1-Beta1) is one of the isoforms encoded by Neuregulin (NRG) genes. NRGs are synthesized as large transmembrane precursor proteins, and the NRG family has 4 members and 26 isoforms. These isoforms provide large diversities, including different tissue distribution, variable potencies, and different biological functions. HRG1-β1 belongs to Type I HRG1, and is expressed in neural tissue, respiratory epithelia, and heart. In vivo, HRG1 binds and activates both ErbB3 and ErbB4, the transmembrane receptor tyrosine kinase, and is involved in the proliferation, differentiation, and survival of cells. Aberrantly produced HRG1 could be used in the constitute activation of the ErbB receptors; therefore, the upregulation of HRG1 contributes to the development of tumors, including breast cancer.
Biological Activity :
ED50 1.0 × 106 units/mg.
expression system :
E. coli
Tag :
Expressed with an N-terminal Met. HRG1-β1 (Ser177-Glu241)Accession # Q02297-6
Protein Accession No. :
Q02297-6
Synonyms :
Neuregulin1; NRG1-β1
Molecular Weight :
~7.6 kDa, on SDS-PAGE under reducing conditions.
Purity :
> 95% as analyzed by SDS-PAGE
Product Concentration :
Lyophilized after extensive dialysis against PBS.
Storage and Stability :
Upon receiving, this product remains stable for up to 6 months at lower than -70°C. Upon reconstitution, the product should be stable for up to 1 week at 4°C or up to 3 months at -20°C. For long term storage it is recommended that a carrier protein (example 0.1% BSA) be added. Avoid repeated freeze-thaw cycles.
Related category websites: https://www.medchemexpress.com/recombinant-proteins.html
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