HLA-DRB3 Polyclonal Antibody

Sizes: 50µl, 100µl

Catalogue Numbers: BS6623-50, BS6623-100

Product: 1mg/ml in PBS with 0.02% sodium azide, 50% glycerol, pH7.2

Swiss-Prot: P79483

Host: Rabbit

Reactivity: Human, Mouse, Rat

Applications: WB

All Applications: WB,1:500 - 1:2000

Background: HLA-DRB3 belongs to the HLA class II beta chain paralogues. This class II molecule is a heterodimer consisting of an alpha (DRA) and a beta (DRB) 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 beta chain is approximately 26-28 kDa and its gene contains 6 exons. Exon one encodes the leader peptide, exons 2 and 3 encode the two extracellular domains, exon 4 encodes the transmembrane domain and exon 5 encodes the cytoplasmic tail. Within the DR molecule the beta chain contains all the polymorphisms specifying the peptide binding specificities. Typing for these polymorphisms is routinely done for bone marrow and kidney transplantation. DRB1 is expressed at a level five times higher than its paralogues DRB3, DRB4 and DRB5. The presence of DRB3 is linked with allelic variants of DRB1, otherwise it is omitted. There are 4 related pseudogenes: DRB2, DRB6, DRB7, DRB8 and DRB9.

Purification and Purity: The antibody was affinity-purified from rabbit antiserum by affinity-chromatography using epitope-specific immunogen and the purity is > 95% (by SDS-PAGE).

Storage and Stability: Store at 4°C short term. Aliquot and store at -20°C long term. Avoid freeze-thaw cycles.

Specificity: Polyclonal Antibodies

Bioworld Molecular Weight: 30kDa

Note: For research use only, not for use in diagnostic procedure.

Extra Notes: Western Blot analysis of extracts of various cell lines, using HLA-DRB3 antibody at 1:1000 dilution.
Secondary antibody: HRP Goat Anti-Rabbit IgG at 1:10000 dilution.
Lysates/proteins: 25ug per lane.
Blocking buffer: 3% non-fat dry milk in TBST.
Detection: ECL Basic Kit.
Exposure time: 30s.

Alternative Name: HLA-DRB3; HLA-DR1B; HLA-DR3B; major histocompatibility complex; class II; DR beta 3

Immunogen: Recombinant fusion protein of human HLA-DRB3(NP_072049.2).

Conjugate: Unconjugated

Modification: Unmodified