PROVETOP

Human HLA-A*02:01&B2M&GP100 (YLEPGPVTA) Tetramer Protein

Catalog No: GP100-HP002

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

Product overview

Recombinant Human HLA-A*02:01&B2M&GP100 (YLEPGPVTA) Tetramer Protein is expressed from HEK293 with His tag and Avi tag at the C-terminus,tetramer is assembled by biotinylated monomer and streptavidin. It contains Gly25-Thr305(HLA-A*02:01), Ile21-Met119(B2M) and YLEPGPVTA peptide (accession: A0A140T913(HLA-A*02:01) & P61769(B2M) &YLEPGPVTA).

Product Details

Molecular Aliases
HLA0201; MHC I; gp100; Glycoprotein 100; ME20-M; P100
Protein Length
Gly25-Thr305
Expression System
HEK293
Theoretical Molecular Weight
The protein has a predicted MW of 258 kDa. Due to glycosylation, the protein migrates to 260-265 kDa under Non reduced (N) condition 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 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
GP100-HP002 Bis-Tris-PAGE-white result

Human HLA-A*02:01&B2M&GP100 (YLEPGPVTA) Tetramer on Bis-Tris PAGE under Non reduced (N) condition. The purity is greater than 95%.

SEC-HPLC
GP100-HP002 SEC-HPLC result

The purity of Human HLA-A*02:01&B2M&GP100 (YLEPGPVTA) Tetramer was greater than 95% as determined by SEC-HPLC.

ELISA
GP100-HP002 ELISA result

Immobilized Human HLA-A*02:01&B2M&GP100 (YLEPGPVTA) Tetramer, His Tag at 2μg/ml (100μl/Well) on the plate. Dose response curve for Anti-HLA-A*02:01&B2M&GP100 (YLEPGPVTA) Antibody, hFc Tag with the EC50 of 5.6ng/ml determined by ELISA (QC Test).

ELISA
GP100-HP002 ELISA-2 result

Immobilized Tebentafusp, No Tag at 1μg/ml (100μl/well) on the plate. Dose response curve for Human HLA-A*02:01&B2M&GP100 (YLEPGPVTA) Tetramer, His Tag with the EC50 of 39.5ng/ml determined by ELISA.

SPR
GP100-HP002 SPR result

Human HLA-A*02:01&B2M&GP100 (YLEPGPVTA) Tetramer, His Tag immobilized on CM5 Chip can bind Tebentafusp with an affinity constant of 0.196 nM as determined in SPR assay (Biacore T200).

Background

Glycoprotein 100, gp100 or Melanocyte protein PMEL is 661 amino acids long and is a type I transmembrane glycoprotein enriched in melanosomes, which are the melanin-producing organelles in melanocytes. This protein is involved in melanosome maturation. The Human HLA-A*0201 gp100 (YLEPGPVTA) complex Protein is a complex of HLA-A*0201 of the MHC Class I, B2M and YLEPGPVTA peptide of the gp100.

References

  1. (1)Abad J D, Wrzensinski C, Overwijk W, et al. T-Cell Receptor Gene Therapy of Established Tumors in a Murine Melanoma Model[J]. Journal of Immunotherapy, 2008, 31(1):1-6.

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