| Gene Name |
HLA-A |
| Synonyms |
HLAA |
| English Name |
Recombinant human HLA-A protein |
| Full Name |
major histocompatibility complex，class I，A |
| Chinese Name |
主要组织相容性复合体I类A |
| Appearance |
Powder: Lyophilized from a 0.2 μm filtered solution of 2-8M Urea, 20mM Tris-HCl, 150mM NaCl, 1mM DTT, PH7.2-8.0. |
| Purity |
≥85% by SDS-PAGE. |
| Storage |
Reconstituted protein solution can be stored at 4-7℃ for 1-2 weeks， stored at < -20℃ for 1 year. |
| Transport Condition |
The product is shipped at -20℃ temperature. Upon receipt, store it immediately at the temperature listed below. |
| Concentration |
1mg/ml by SDS-PAGE. |
| Swiss Prot |
P04439 |
| Gene ID |
3105 |
| Reactivity |
Human |
| Molecular Weight |
30.1kDa |
| Interval Range |
40-300aa |
| 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 an important role in the occurrence and outcome of infectious diseases, including those caused by the malaria parasite, the human immunodeficiency virus (HIV), and the severe acute respiratory syndrome coronavirus (SARS-CoV). The structural spike and the nucleocapsid proteins of the novel coronavirus SARS-CoV-2, which causes coronavirus disease 2019 (COVID-19), are reported to contain multiple Class I epitopes with predicted HLA restrictions. Individual HLA genetic variation may help explain different immune responses to a virus across a population. |
| Application |
Immunology research |
| Source |
E.coli |
| Purification Method |
NI-NTA affinity purification |
| Solvent |
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.) |
| Endotoxin |
Not measured |
| Biological Activity |
N0 |
| Lable Information |
With a 6×His tag at the N/C-terminus. |
| Unit |
Piece |
| Specification |
10ug 50ug 100ug 1mg |
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