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. 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. Hundreds of HLA-A alleles have been described.
Categories
Primary Antibodies
Clonality
monoclonal
Host
Mouse
Immunogen
major histocompatibility complex, class I, A
Isotype
IgG2a
Molecular Weight
44 kDa
Reactivity
Human
Regulatory
RUO
Synonyms
HLA A, HLA class I, HLA class I (HLA-A), HLA class I ABC, HLA-A, MHC class I antigen A*3
Uniprot
P04439/P30443
Gene Id
3105
Clone No
0D3
Research Area
Cell Division and Proliferation, Cardiovascular, Immunology, Cancer, Stem Cells, Signal Transduction
Form
liquid
Format
liquid
Purification
Protein A+G purification
Purity
>=95% as determined by SDS-PAGE
Storage
PBS with 0.02% sodium azide and 50% glycerol pH 7.3, -20°C for 12 months(Avoid repeated freeze / thaw cycles.)