HLA-B 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 45kDa and its gene contains 8 exons. Exon 1 encodes the leader peptide, exon 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-B alleles have been described.
Formulation
1 mg/ml in 1X PBS; BSA free, sodium azide free
Host
Mouse
Immunogen Region
Normal human peripheral blood lymphocytes were used as the immunogen for the HLA-B antibody.
Isotype
Mouse IgG, kappa
Species Reactivity
Human
Note
Optimal dilution of the HLA-B antibody should be determined by the researcher.
Uniprot
P01889
Format
Purified
Purity
Protein A/G affinity
Storage
Aliquot the HLA-B antibody and store frozen at -20oC or colder. Avoid repeated freeze-thaw cycles.