PROVETOP

Human/Cynomolgus Her4/ErbB4 Protein

Catalog No: HER4-HF001

Species
Human/Cyno
Expression System
HEK293
Tag
an hFc (IgG1)
Activity
Activity verified

Product overview

Recombinant Human/Cynomolgus Her4/ErbB4 Protein is expressed in HEK293 cells with an hFc (IgG1) tag at the C-terminus. It contains amino acid residues Gln26-Pro651 (accession: Q15303-1(Human) / A0A2K5W0D7(Cynomolgus)).

Product Details

Molecular Aliases
p180erbB4; 4ICD; E4ICD; HER4; ErbB4; MGC138404; ALS19
Protein Length
Gln26-Pro651
Expression System
HEK293
Theoretical Molecular Weight
The protein has a predicted MW of 96.6 kDa. Due to glycosylation, the protein migrates to 100-120 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 0.22μm 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 24 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
HER4-HF001 Bis-Tris-PAGE-white result

Human/Cynomolgus Her4 on Bis-Tris PAGE under reduced condition. The purity is greater than 95%.

SEC-HPLC
HER4-HF001 SEC-HPLC result

The purity of Human/Cynomolgus Her4 is greater than 95% as determined by SEC-HPLC.

ELISA
HER4-HF001 ELISA result

Immobilized Human/Cynomolgus Her4, hFc Tag at 5μg/ml (100μl/well) on the plate. Dose response curve for Biotinylated Human NRG1 Beta 1, hFc Tag with the EC50 of 94.6ng/ml determined by ELISA.

Background

ErbB4, a member of the EGF receptor family, plays a variety of roles in physiological and pathological states. Genetic studies have indicated a link between ErbB4 and type 2 diabetes and obesity. ErbB4 may play an important role in glucose homeostasis and lipogenesis. ErbB4 deficiency-related obesity and adipose tissue inflammation may contribute to the development of MetS.

References

  1. Zeng F, Wang Y, Kloepfer LA, Wang S, Harris RC. ErbB4 deletion predisposes to development of metabolic syndrome in mice. Am J Physiol Endocrinol Metab. 2018 Oct 1;315(4):E583-E593. doi: 10.1152/ajpendo.00166.2018. Epub 2018 Jun 26. PMID: 29944391; PMCID: PMC6230712.

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