HLA-DRA Polyclonal Antibody

Background:
HLA-DRA is one of the HLA class II alpha chain paralogues. This class II molecule is a heterodimer consisting of an alpha and a beta chain, both anchored in the membrane. It plays a central role in the immune system by presenting peptides derived from extracellular proteins. Class II molecules are expressed in antigen presenting cells (APC: B lymphocytes, dendritic cells, macrophages). The alpha chain is approximately 33-35 kDa and its gene contains 5 exons. Exon 1 encodes the leader peptide, exons 2 and 3 encode the two extracellular domains, and exon 4 encodes the transmembrane domain and the cytoplasmic tail. DRA does not have polymorphisms in the peptide binding part and acts as the sole alpha chain for DRB1, DRB3, DRB4 and DRB5.

Research Area: Cancer, Immunology

Synonyms:
HLA-DRA, HLA-DRA1, major histocompatibility complex, class II, DR alpha

Immunogen: Recombinant fusion protein of human HLA-DRA (NP_061984.2).

Swissprot: P01903
Gene ID: 3122

Calculated MW: 28 kDa
Observed MW: 37 kDa

Purification Method: Affinity purification

Buffer: PBS with 0.02% sodium azide, 50% glycerol, pH7.3

Concentration: 1 mg/mL
Dilution: "WB 1:500-1:2000 IHC 1:50-1:200"

Storage:
Store at -20°C. Avoid freeze / thaw cycles.