HLA-DRB1 Rabbit Polyclonal Antibody

Specifications

Product Data
Applications	IHC, WB
Recommend Dilution	WB: 500-2000 WB positive control: Raji cell, Human spleen tissue lysates IHC: 50-300 Positive control: Human prostate cancer Predicted cell location: Cytoplasm and Cell membrane
Reactivity	Human
Host	Rabbit
Clonality	Polyclonal
Immunogen	Fusion protein of human HLA-DRB1
Formulation	pH7.4 PBS, 0.05% NaN3, 40% Glycerol
Purification	Antigen affinity purification
Conjugation	Unconjugated
Storage Condition	Store at -20°C.
Predicted Protein Size	30 kDa
Gene Name	major histocompatibility complex, class II, DR beta 1
Database Link	Entrez Gene 3123 Human UniProt ID P01911
Background	HLA-DRB1 belongs to the HLA class II beta chain paralogs. The class II molecule is a heterodimer consisting of an alpha (DRA) and a beta chain (DRB), 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. It is encoded by 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. Hundreds of DRB1 alleles have been described and typing for these polymorphisms is routinely done for bone marrow and kidney transplantation. DRB1 is expressed at a level five times higher than its paralogs DRB3, DRB4 and DRB5. DRB1 is present in all individuals. Allelic variants of DRB1 are linked with either none or one of the genes DRB3, DRB4 and DRB5. There are 4 related pseudogenes: DRB2, DRB6, DRB7, DRB8 and DRB9.
Synonyms	HLA-DR1B
Reference Data

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