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Recombinant human HLA-A protein

Cat:P08412

Summary:

【Derived From】: E.coli
【Endotoxin】: Not measured
【Amino Acid】: 40-300aa
【Purity】: ≥85% by SDS-PAGE.
【Name】: HLA-A
【Full Name】: major histocompatibility complex,class I,A
【Uniprot】: P04439
【Gene ID】: 3105
【Species Reactivity】: Human
【Mol Mass】: 30.1kDa
【Application】: Immunology research
【Purification】: NI-NTA affinity purification
【Bioactive】: N0
【Tag】: With a 6×His tag at the N/C-terminus.
【Concentration】: 1mg/ml by SDS-PAGE.

Store:

【Reconstitution】: Reconstituted protein solution can be diluted with distilled water. Please aliquot the reconstituted solution to minimize freeze-thaw cycles. (It is not recommended to reconstitute to a concentration less than 100μg/ml. Dissolve the lyophilized protein in distilled water.)
【Storage】: Reconstituted protein solution can be stored at 4-7℃ for 1-2 weeks, stored at < -20℃ for 1 year.
【Formulation】: Powder: Lyophilized from a 0.2 μm filtered solution of 2-8M Urea, 20mM Tris-HCl, 150mM NaCl, 1mM DTT, PH7.2-8.0.

Background:

HLA-A 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. Class I molecules play a central role in the immune system by presenting peptides derived from the endoplasmic reticulum lumen so that they can be recognized by cytotoxic T cells. They are expressed in nearly all cells. The heavy chain is approximately 45 kDa and its gene contains 8 exons. Exon 1 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. Polymorphisms within exon 2 and exon 3 are responsible for the peptide binding specificity of each class one molecule. Typing for these polymorphisms is routinely done for bone marrow and kidney transplantation. More than 6000 HLA-A alleles have been described. The HLA system plays a

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