PROVETOP

Biotinylated Human Her3/ErbB3 Protein

Catalog No: HER3ERBB3-HB001

Species
Human
Expression System
HEK293
Tag
His, Avi
Activity
Activity verified

Product overview

Recombinant Biotinylated Human Her3/ErbB3 Protein is expressed in HEK293 cells with a His tag and Avi tag at the C-terminus. It contains amino acid residues Ser20-Thr643 (UniProt accession: P21860-1).

Product Details

Molecular Aliases
ErbB3; ErbB-3; HER3; HER3c-erbB-3; LCCS2; MDA-BF-1; MGC88033; p180-ErbB3; p45-sErbB3; p85-sErbB3; ERBB3; HER3c-erbB3; MDA-BF1; p180ErbB3; p45sErbB3; p85sErbB3
Protein Length
Ser20-Thr643
Expression System
HEK293
Theoretical Molecular Weight
The protein has a predicted MW of 71.6 kDa. Due to glycosylation, the protein migrates to 90-100 kDa based on Bis-Tris PAGE result.
Purity
> 95% as determined by Bis-Tris PAGE > 95% as determined by HPLC
Endotoxin
Less than 1 EU per μg by the LAL method.
Buffer / Formulation
Lyophilized from 0.22 μm filtered solution in PBS (pH 7.4). Normally 8% trehalose is added as protectant before lyophilization.
State
Lyophilized
Storage Conditions
-20 to -80°C for 12 months as supplied from date of receipt. -80°C for 3 months after reconstitution. Recommend to aliquot the protein into smaller quantities for optimal storage. Please minimize freeze-thaw cycles.
Reconstitution Advice
Dissolve the lyophilized protein in distilled water. Please refer to the Certificate of Analysis for detailed instructions.

Data Display

Bis-Tris PAGE
HER3ERBB3-HB001 Bis-Tris-PAGE-white result

Biotinylated Human Her3 on Bis-Tris PAGE under reduced condition. The purity is greater than 95%.

SEC-HPLC
HER3ERBB3-HB001 SEC-HPLC result

The purity of Biotinylated Human Her3 is greater than 95% as determined by SEC-HPLC.

ELISA
HER3ERBB3-HB001 ELISA result

Immobilized Biotinylated Human Her3, His Tag at 2 μg/ml (100 μl/well) on the streptavidin precoated plate (5 μg/ml). Dose response curve for Human NRG1 Beta 1, hFc Tag with the EC50 of 8.3 ng/ml determined by ELISA (QC Test).

ELISA
HER3ERBB3-HB001 ELISA-2 result

Immobilized Anti-Her3 Antibody, hFc Tag at 2 μg/ml (100 μl/well) on the plate. Dose response curve for Biotinylatd Human Her3, His Tag with the EC50 of 58.1 ng/ml determined by ELISA.

Background

Her3, also called ErbB3, is a type I membrane glycoprotein that is a member of the ErbB family of tyrosine kinase receptors. Her3 is expressed in keratinocytes, melanocytes, skeletal muscle cells, embryonic myoblasts and Schwann cells. Monomeric Her3 serves as a low affinity receptor for the heregulins (HRG).ation leads to a deletion of exons 2-7 of the EGFR gene and renders the mutant receptor incapable of binding any known ligand.

References

  1. Yonesaka K, Haratani K, Hirotani K, et al. Abstract 44: U3-1402, a novel HER3-targeting ADC, and a novel DNA topoisomerase I inhibitor inhibit the growth of non-small cell lung cancer with EGFR mutation[J]. Cancer Research, 2017, 77(13 Supplement):44-44.

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