MHC-HE013 | 价格

MHC-HE013-100μg / 询价

MHC-HE013-500μg / 询价

MHC-HE013-500μgx2 / 询价

Human HLA-A*02:01&B2M&CMV pp65 (NLVPMVATV) Monomer Protein

产品信息(Product Info)
表达区间及表达系统(Source)

Recombinant Human HLA-A*02:01&B2M&CMV pp65 (NLVPMVATV) Monomer Protein is expressed from E.coli with His tag and Avi tag at the C-terminus.
It contains Gly25-Thr305 (HLA-A*02:01), Ile21-Met119 (B2M) and NLVPMVATV peptide [Accession | A0A140T913(HLA-A*02:01)&P61769(B2M)&NLVPMVATV].

分子量大小(Molecular Weight)

The protein has a predicted MW of 35.6 kDa (HLA-A*02:01) and 11.9 kDa (B2M) same as Bis-Tris PAGE result.

纯度(Purity)

> 95% as determined by Bis-Tris PAGE
> 95% as determined by HPLC

内毒素(Endotoxin)

Less than 1 EU per μg by the LAL method.

制剂(Formulation)

Supplied as 0.22 μm filtered solution in 20mM Tris, 200mM NaCl (pH 8.0).

存储(Storage)

Valid for 12 months from date of receipt when stored at -80°C.
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 HLA-A*02:01&B2M&CMV pp65 (NLVPMVATV) Monomer on Bis-Tris PAGE under reduced condition. The purity is greater than 95%.

SEC-HPLC

The purity of Human HLA-A*02:01&B2M&CMV pp65 (NLVPMVATV) Monomer is greater than 95% as determined by SEC-HPLC.

ELISA Data

Immobilized Human HLA-A*02:01&B2M&CMV pp65 (NLVPMVATV) Monomer, His Tag at 0.5μg/ml (100μl/well) on the plate. Dose response curve for Anti-B2M Antibody, mFc Tag with the EC50 of 7.3ng/ml determined by ELISA.

背景(Background)

Human cytomegalovirus (CMV), a β-herpes virus with a double-stranded DNA, infects a wide variety of cells and establishes latency in the host. CMVpp65, a tegument protein of the herpes virus CMV, is the main viral antigen found in peripheral blood mononuclear cells (PBMCs) after viral infection and may activate cell-mediated immunity, accounting for 70-90% of the cytotoxic CD8+ T cells' (CTLs) response to CMV. Among the pp65-derived CTL epitope peptides, the 9-mer peptide 495NLVPMVATV503 (CMVpp65 495-503 peptide) is the most immunogenic T cell epitope predominantly displayed on HLA-A*02:01, the most common MHC-I allele in the population.

分子别名(Synonyms)

CMVpp65; NLVPMVATV

文献(References)

[1] Lee SY, Ko DH, Son MJ, Kim JA, Jung K, Kim YS. Affinity Maturation of a T-Cell Receptor-Like Antibody Specific for a Cytomegalovirus pp65-Derived Peptide Presented by HLA-A*02:01. Int J Mol Sci. 2021 Feb 26;22(5):2349. doi: 10.3390/ijms22052349.

[2] Hasan AN, Doubrovina E, Sottile R, Prockop S, Klatt MG, Heller G, Selvakumar A, Barnett L, Hsu KC, O'Reilly RJ. Dominant epitopes presented by prevalent HLA alleles permit wide use of banked CMVpp65 T cells in adoptive therapy. Blood Adv. 2022 Aug 23;6(16):4859-4872. doi: 10.1182/bloodadvances.2022007005.

[3] Zaia JA, Gallez-Hawkins G, Li X, Yao ZQ, Lomeli N, Molinder K, La Rosa C, Diamond DJ. Infrequent occurrence of natural mutations in the pp65(495-503) epitope sequence presented by the HLA A*0201 allele among human cytomegalovirus isolates. J Virol. 2001 Mar;75(5):2472-4. doi: 10.1128/JVI.75.5.2472-2474.2001.