Rabbit Polyclonal antibody to HLA-DRAHLA-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. [provided by RefSeq, Jul 2008]
Immunogen
Recombinant protein of human HLA-DRA
Key Feature
Clonality
Polyclonal
Isotype
IgG
Host Species
Rabbit
Tested Applications
IHC-PWB
WB: 1:500 - 1:2000, IHC: 1:50 - 1:200:
Species Reactivity
HumanMouseRat
Concentration
1mg/ml
Purification
Affinity purified
Target Information
Gene Synonyms
major histocompatibility complex class II DR alpha MLRW HLA DRA1
Target
HLA-DRA
Application
Application
Western blot analysis of extracts of Raji and Jurkat cell lines, using HLA-DRA antibody.