Anti-HLA DRB3 Rabbit Polyclonal Antibody
Product Information
Downloads & Supports
Target
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HLA-DRB3
Host
Storage
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Store at 4°C short term. Aliquot and store at -20°C long term. Avoid freeze/thaw cycles.
Clonality
Clone Number
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-
Isotype
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IgG
Reactivity
Application
Application Details
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WB: 1/500-1/1000 IHC: 1/50-1/100
Immunogen
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Synthetic peptide of human HLA-DRB3
Molecular Weight
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Calculated MW: 30 kDa; Observed MW: 30 kDa
Formulation
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pH 7.4 PBS, 0.05% NaN3, 40% Glycerol
Form
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Liquid
Gene ID
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3125
Uniprot ID
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P79483
Background
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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.
Research Area
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Immunology
Synonyms
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major histocompatibility complex; class II; DR beta 3; HLA-DR1B; HLA-DR3B