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Product Description
HLA-DRB4 Antibody | 57-203 | ProSci
Host: Rabbit
Reactivity: Human
Homology: N/A
Immunogen: This HLA-DRB4 antibody is generated from rabbits immunized with a KLH conjugated synthetic peptide between 43-72 amino acids from the N-terminal region of human HLA-DRB4.
Research Area: Immunology
Tested Application: WB
Application: For WB starting dilution is: 1:1000
Specificiy: N/A
Positive Control 1: N/A
Positive Control 2: N/A
Positive Control 3: N/A
Positive Control 4: N/A
Positive Control 5: N/A
Positive Control 6: N/A
Molecular Weight: 30 kDa
Validation: N/A
Isoform: N/A
Purification: This antibody is purified through a protein A column, followed by peptide affinity purification.
Clonality: Polyclonal
Clone: N/A
Isotype: Rabbit Ig
Conjugate: Unconjugated
Physical State: Liquid
Buffer: Supplied in PBS with 0.09% (W/V) sodium azide.
Concentration: batch dependent
Storage Condition: Store at 4˚C for three months and -20˚C, stable for up to one year. As with all antibodies care should be taken to avoid repeated freeze thaw cycles. Antibodies should not be exposed to prolonged high temperatures.
Alternate Name: HLA class II histocompatibility antigen, DR beta 4 chain, MHC class II antigen DRB4, HLA-DRB4
User Note: Optimal dilutions for each application to be determined by the researcher.
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.
