HLA-DRB4 Rabbit Polyclonal Antibody

Specifications

Product Data
Applications	WB
Recommend Dilution	WB:1:500-1:3000
Reactivity	Human
Host	Rabbit
Clonality	Polyclonal
Immunogen	Recombinant fragment corresponding to a region within amino acids 1 and 266 of HLA DR beta (Uniprot ID#P13762)
Formulation	0.1M Tris, 0.1M Glycine, 10% Glycerol (pH7). 0.01% Thimerosal was added as a preservative.
Concentration	lot specific
Purification	Purified by antigen-affinity chromatography.
Conjugation	Unconjugated
Storage Condition	Store at -20°C as received.
Predicted Protein Size	30 kDa
Gene Name	major histocompatibility complex, class II, DR beta 4
Database Link	NP_068818 Entrez Gene 3126 Human UniProt ID P13762
Background	HLA-DRB4 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 DRB4 is linked with allelic variants of DRB1, otherwise it is omitted. There are 4 related pseudogenes: DRB2, DRB6, DRB7, DRB8 and DRB9. [provided by RefSeq]
Synonyms	DR4; DRB4; HLA-DR4B
Reference Data
Protein Families	Transmembrane
Protein Pathways	Allograft rejection, Antigen processing and presentation, Asthma, Autoimmune thyroid disease, Cell adhesion molecules (CAMs), Graft-versus-host disease, Hematopoietic cell lineage, Systemic lupus erythematosus, Type I diabetes mellitus, Viral myocarditis

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