Human ERBB3/Her3 ELISA Kit PicoKine®, Carrier-free

Human ERBB3/Her3 ELISA Kit PicoKine® (96 Tests). Quantitate Human ERBB3 in cell culture supernatants, cell lysates, serum and plasma (heparin, EDTA). Sensitivity: 10pg/ml. The brand Picokine indicates this is a premium quality ELISA kit. Each Picokine kit delivers precise quantification, high sensitivity, and excellent reproducibility. Only our most reliable and effective kits qualify as Picokine, guaranteeing top-tier results for your assays.

Product Specifications

Background

Receptor tyrosine-protein kinase erbB-3, also known as HER3 (human epidermal growth factor receptor 3), is a membrane bound protein that in humans is encoded by the ERBB3 gene. ErbB3 has been shown to bind the ligands heregulin and NRG-2. Ligand binding causes a change in conformation that allows for dimerization, phosphorylation, and activation of signal transduction. ErbB3 can heterodimerize with any of the other three ErbB family members. The theoretical ErbB3 homodimer would be non-functional because the kinase-impaired protein requires transphosporylation by its binding partner to be active. Unlike the other ErbB receptor tyrosine kinase family members which are activated through autophosphorylation upon ligand binding, ErbB3 is found to be kinase impaired, having only 1/1000th the autophosphorylation activity of EGFR and no ability to phosphorylate other proteins. Therefore, ErbB3 must act as anallosteric activator.

Reproducibility

<table cellpadding="3"><tr><th>Lots</th><th>Lot 1 (pg/ml)</th><th>Lot 2 (pg/ml)</th><th>Lot 3 (pg/ml)</th><th>Lot 4 (pg/ml)</th><th>Mean (pg/ml)</th><th>Standard Deviation</th><th>CV (%)</th></tr><tr><td>Sample 1</td><td>249</td><td>249</td><td>242</td><td>239</td><td>244</td><td>4.38</td><td>1.7%</td></tr><tr><td>Sample 2</td><td>1903</td><td>1635</td><td>1831</td><td>1793</td><td>1790</td><td>98.08</td><td>5.4%</td></tr><tr><td>Sample 3</td><td>5498</td><td>5793</td><td>5614</td><td>5244</td><td>5537</td><td>199.27</td><td>3.5%</td></tr></table>*number of samples for each test n=16.

Synonyms

Receptor tyrosine-protein kinase erbB-3;2.7.10.1;Proto-oncogene-like protein c-ErbB-3;Tyrosine kinase-type cell surface receptor HER3;ERBB3;HER3;

Gene Name

Receptor tyrosine-protein kinase erbB-3

Gene ID

2065

UniProt

P21860

Reactivity

Human

Cross Reactivity

There is no detectable cross-reactivity with other relevant proteins.

Immunogen

Expression system for standard: NS0; Immunogen sequence: S20-T643

Tissue Specificity

Epithelial tissues and brain.

Applications

ELISA

Standard

10 ng/tube

Sample Type

cell culture supernatants, cell lysates, serum and plasma (heparin, EDTA).

Detection Range

156 pg/ml - 10,000 pg/ml

Sensitivity

<10 pg/ml

Function

Binds and is activated by neuregulins and NTAK. May also be activated by CSPG5. .

Components

Storage Conditions

Store at 4℃ for 6 months, at -20℃ for 12 months. Avoid multiple freeze-thaw cycles (Ships with gel ice, can store for up to 3 days in room temperature. Freeze upon receiving.)