Recombinant Mouse HER3/ErbB3 Protein (His Tag)

Specifications

Catalog number

PKSM040391

Size / count

100 µg

Dry ice

No

Hazardous

No

Discontinued

No

Background

ErbB3, also known as Her3 (human epidermal growth factor receptor3), is a member of the epidermal growth factor receptor (EGFR) family of receptor tyrosine kinases. This membrane-bound glycoprotein has a neuregulin binding domain but has not an active kinase domain., and therefore can not mediate the intracellular signal transduction through protein phosphorylation. However, its heterodimer with ErbB2 or other EGFR members responsible for tyrosine phosphorylation forms a receptor complex with high affinity, and initiates the related pathway which lead to cell proliferation or differentiation. ErbB3 has been shown to implicated in numerous cancers, including prostate, bladder, and breast tumors. This protein has different isoforms derived from alternative splicing variants, and among which, the secreted isoform lacking the intermembrane region modulates the activity of membrane-bound form.

Synonyms

C76256; Erbb-3; Erbb-3r; Erbb3; Erbb3r; Her3

UniProt

Q61526

Accession Number

Q61526

Expression System

HEK293 Cells

Tag

C-His

Sequence

Met 1-His 641

Applications

ELISA

Endotoxin

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

Purity

> 93 % as determined by reducing SDS-PAGE.

Bioactivity

1. Immobilized mouse ErbB3-His at 10 μg/ml (100 μl/well) can bind biotinylated human NRG1 (isoform Beta1) with a linear range of 0.018-0.125 μg/ml. 2. Immobilized mouse ErbB3-His at 10 μg/ml (100 μl/well) can bind biotinylated human NRG1 (aa 2-246) -Fc with a linear range of 6. 25-100 ng/ml.

Reconstitution

Please refer to the printed manual for detailed information.

Shipping Conditions

This product is provided as lyophilized powder which is shipped with ice packs.

Storage Conditions

Generally, lyophilized proteins are stable for up to 12 months when stored at -20 to -80°C. Reconstituted protein solution can be stored at 4-8°C for 2-7 days. Aliquots of reconstituted samples are stable at < -20°C for 3 months.

Calculated Molecular Weight

70.0 kDa

Observed Molecular Weight

95 kDa

Species

Mouse