Skip to Content
Merck
All Photos(1)

Key Documents

H0786

Sigma-Aldrich

Heregulin-β, EGF Domain human

≥80% (SDS-PAGE), recombinant, expressed in E. coli, buffered aqueous glycerol solution

Synonym(s):

HRG-β

Sign Into View Organizational & Contract Pricing


About This Item

MDL number:
UNSPSC Code:
12352202
NACRES:
NA.32

biological source

human

Quality Level

recombinant

expressed in E. coli

Assay

≥80% (SDS-PAGE)

form

buffered aqueous glycerol solution

mol wt

185 kDa

packaging

pkg of 100 μg

storage condition

avoid repeated freeze/thaw cycles

UniProt accession no.

shipped in

dry ice

storage temp.

−20°C

Gene Information

human ... NRG1(3084)

General description

Truncated human sequence (amino acids 178-241) corresponding to the EGF domain and purified as a GST-fusion protein, cleaved with thrombin.

Biochem/physiol Actions

Growth factor ligand for ErbB3 and ErbB4 receptor tyrosine kinases. The binding of HRG results in receptor dimerization and receptor trans-autophosphorylation. The phosphorylated receptors recruit cellular signaling proteins, initiating signaling pathways.

Physical form

Solution in phosphate buffered saline containing 30% glycerol.

Analysis Note

Stimulates tyrosine phosphorylation of the ErbB-3/HER-3 receptor.
The biological activity is measured by its ability to activate the c-ErbB3/HER-3 receptor in treated MCF-7 cells.

Storage Class Code

10 - Combustible liquids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable


Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

Already Own This Product?

Find documentation for the products that you have recently purchased in the Document Library.

Visit the Document Library

Marcia R Campbell et al.
Cell reports, 38(5), 110291-110291 (2022-02-03)
Effective inactivation of the HER2-HER3 tumor driver has remained elusive because of the challenging attributes of the pseudokinase HER3. We report a structure-function study of constitutive HER2-HER3 signaling to identify opportunities for targeting. The allosteric activation of the HER2 kinase

Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

Contact Technical Service