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 >  Protein>HLA-E*0103 & B2M & CMV UL40 (VMAPRTLLL) >HL0-H82E8

Biotinylated Human HLA-E*01:03&B2M&CMV UL40 (VMPPRTVIL) Complex Protein (Monomer, MALS verified)

分子别名(Synonym)

HLA-E*0103 & B2M & CMV UL40 (VMPPRTVIL)

表达区间及表达系统(Source)

Biotinylated Human HLA-E*01:03&B2M&CMV UL40 (VMPPRTVIL) Complex Protein (HL0-H82E8) is expressed from human 293 cells (HEK293). It contains AA Gly 22 - Ile 305 (HLA-E*01:03) & Ile 21 - Met 119 (B2M) & VMPPRTVIL peptide (Accession # P13747 (HLA-E*01:03) & P61769-1 (B2M) & VMPPRTVIL).

Predicted N-terminus: Gly 22 & Ile 21

Request for sequence

蛋白结构(Molecular Characterization)

Biotinylated Human HLA-E*01:03&B2M&CMV UL40 (VMPPRTVIL) Complex Protein is produced by co-expression of HLA and B2M loaded with CMV UL40 peptide.

This protein carries a polyhistidine tag at the C-terminus, followed by an Avi tag (Avitag™).

The protein has a calculated MW of 36.2 kDa and 13.8 kDa. The protein migrates as 40-43 kDa and 12 kDa when calibrated against Star Ribbon Pre-stained Protein Marker under reducing (R) condition (SDS-PAGE) due to glycosylation.

标记(Labeling)

Biotinylation of this product is performed using Avitag™ technology. Briefly, the single lysine residue in the Avitag is enzymatically labeled with biotin.

蛋白标记度(Protein Ratio)

Passed as determined by the HABA assay / binding ELISA.

内毒素(Endotoxin)

Less than 1.0 EU per μg by the LAL method.

纯度(Purity)

>95% as determined by SDS-PAGE.

>90% as determined by SEC-MALS.

制剂(Formulation)

Lyophilized from 0.22 μm filtered solution in PBS, pH7.4 with trehalose as protectant.

Contact us for customized product form or formulation.

重构方法(Reconstitution)

Please see Certificate of Analysis for specific instructions.

For best performance, we strongly recommend you to follow the reconstitution protocol provided in the CoA.

存储(Storage)

For long term storage, the product should be stored at lyophilized state at -20°C or lower.

Please avoid repeated freeze-thaw cycles.

This product is stable after storage at:

  1. -20°C to -70°C for 12 months in lyophilized state;
  2. -70°C for 3 months under sterile conditions after reconstitution.
 

电泳(SDS-PAGE)

HLA-E*0103 & B2M & CMV UL40 (VMPPRTVIL) SDS-PAGE

Biotinylated Human HLA-E*01:03&B2M&CMV UL40 (VMPPRTVIL) Complex Protein on SDS-PAGE under reducing (R) condition. The gel was stained with Coomassie Blue. The purity of the protein is greater than 95% (With Star Ribbon Pre-stained Protein Marker).

SEC-MALS

HLA-E*0103 & B2M & CMV UL40 (VMPPRTVIL) SEC-MALS

The purity of Biotinylated Human HLA-E*01:03&B2M&CMV UL40 (VMPPRTVIL) Complex Protein (Cat. No. HL0-H82E8) is more than 90% and the molecular weight of this protein is around 45-60 kDa verified by SEC-MALS.

Report

 

背景(Background)

HLA-E belongs to the HLA class I heavy chain paralogues. This class I molecule is a heterodimer consisting of a heavy chain and a light chain (beta-2 microglobulin). The heavy chain is anchored in the membrane. HLA-E binds a restricted subset of peptides derived from the leader peptides of other class I molecules. The heavy chain is approximately 45 kDa and its gene contains 8 exons. Exon one encodes the leader peptide, exons 2 and 3 encode the alpha1 and alpha2 domains, which both bind the peptide, exon 4 encodes the alpha3 domain, exon 5 encodes the transmembrane region, and exons 6 and 7 encode the cytoplasmic tail.

 

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