IGE-HM401 | 价格

IGE-HM401-100μg / 询价

IGE-HM401-500μg / 询价

IGE-HM401-500μgx2 / 询价

Human IgE Protein

产品信息(Product Info)
表达区间及表达系统(Source)

Recombinant Human IgE Protein is expressed from HEK293 with His and Avi tag at the C-Terminus.
It contains Cys209-Lys428 [Accession | P01854-1].

分子量大小(Molecular Weight)

The protein has a predicted MW of 27.8 kDa. Due to glycosylation, the protein migrates to 30-35 kDa based on Bis-Tris PAGE result.

纯度(Purity)

> 95% as determined by Bis-Tris PAGE

内毒素(Endotoxin)

Less than 1EU per μg by the LAL method.

制剂(Formulation)

Lyophilized from 0.22μm filtered solution in PBS (pH 7.4). Normally 8% trehalose is added as protectant before lyophilization.

重构方法(Reconstitution)

Centrifuge the tube before opening. Reconstituting to a concentration more than 100 μg/ml is recommended. Dissolve the lyophilized protein in distilled water.

存储(Storage)

-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.

产品数据(Assay Data)
Bis-Tris PAGE

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

ELISA Data

Immobilized Human IgE, His Tag at 0.5μg/ml (100μl/well) on the plate. Dose response curve for Anti-IgE Antibody, hFc Tag with the EC50 of 7.0ng/ml determined by ELISA.

背景(Background)

Immunoglobulin E (IgE) is well known for its role in allergic disease, the manifestations of which are mediated through its two Fc receptors, FcεRI and CD23 (FcεRII). IgE and its interactions with these receptors are therefore potential targets for therapeutic intervention, and exciting progress has been made in this direction. Furthermore, recent structural studies of IgE-Fc, the two receptors, and of their complexes, have revealed a remarkable degree of plasticity at the IgE-CD23 interface and an even more remarkable degree of dynamic flexibility within the IgE molecule.

分子别名(Synonyms)

Ig epsilon chain C region;IgE

文献(References)

(1) Sutton BJ, Davies AM. Structure and dynamics of IgE-receptor interactions: FcεRI and CD23/FcεRII. Immunol Rev. 2015 Nov;268(1):222-35. doi: 10.1111/imr.12340. PMID: 26497523.