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Home Recombinant Human Proteins All HLA Proteins

HLA (NM_021983) Purified Human Protein

Specifications Citations Customer Service Product Documents
Cat. No. Description Datasheet Price Availability*  
TP302743 Recombinant protein of human major histocompatibility complex, class II, DR beta 4 (HLA-DRB4), 20 ug (Larger pack size?) 680
$398
In Stock
TA308898 Rabbit polyclonal antibody to HLA-DRB4 (major histocompatibility complex, class II, DR beta 4) $325 3-7 Days
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OriGene Data
Species:Human Expression Host:HEK293 cells
Expression cDNA Clone or AA Sequence
Recombinant protein was produced with TrueORF clone, RC202743. Click on the TrueORF clone link to view cDNA and protein sequences.
Tag:C-terminal MYC/DDK Predicted MW:27 kDa
Purity:> 80% as determined by SDS-PAGE and Coomassie blue staining
Mass Spec Validation: This protein has been positively validated by MS/MS by Dr. Robert Moritz at The Institute of Systems Biology.
Concentration:>50 ug/mL as determined by microplate BCA method
Buffer:25 mM Tris.HCl, pH 7.3, 100 mM glycine, 10% glycerol.
Preparation: Recombinant protein was captured through anti-DDK affinity column followed by conventional chromatography steps.
Protein Families: Transmembrane
Protein Pathways: Cell adhesion molecules (CAMs)Antigen processing and presentationHematopoietic cell lineageType I diabetes mellitusAsthmaAutoimmune thyroid diseaseMore Pathways >>
Protein Data
Protein Image
 

Reference Data
RefSeq: NP_068818 RefSeq Size: 1193 RefSeq ORF: 801
LocusID: 3126 Cytogenetic: 6p21.3  
Synonyms : DR-4; DR4; DRB4; HLA-DR4B
Summary: 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, Jul 2008].
*: Inventory for certain proteins may be limited due to low expression level. Delivery time may vary from web posted schedule. Contact techsupport@origene.com for specific inventory information
**: DDK-tag is the same as FLAG tag. Flag® is a registered trademark of Sigma-Aldrich

 

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