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Invitrogen
Human HLA-DRA (aa 95-120) Control Fragment Recombinant Protein
Product Details
RP-103066
Applications
Tested Dilution
Publications
Product Specifications
Species
Human
Expression System
E. coli
Amino acid sequence
LEIMTKRSNYTPITNVPPEVTVLTNS
Tag
His-ABP-tag
Class
Recombinant
Type
Protein
Purity
>80% by SDS-PAGE and Coomassie blue staining
Conjugate
Form
Liquid
Concentration
≥5.0 mg/mL
Purification
purified
Storage buffer
PBS/1M urea, pH 7.4
Contains
no preservative
Storage conditions
-20° C, Avoid Freeze/Thaw Cycles
Shipping conditions
Wet ice
Product Specific Information
Highest antigen sequence indentity to the following orthologs: Mouse (54%), Rat (54%).
This recombinant protein control fragment may be used for blocking experiments with the corresponding antibody, PA5-111306. In IHC/ICC and WB experiments, we recommend a 100x molar excess of the protein fragment control based on the concentration and the molecular weight. Pre-incubate the antibody-protein control fragment mixture for 30 min at room temperature.
Target Information
HLA-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.
HLA and MHC antibodies play a significant role in Immunopeptidomics, facilitating the identification and characterization of neoantigens through high-performance liquid chromatography coupled to tandem Mass Spectrometry.
For Research Use Only. Not for use in diagnostic procedures. Not for resale without express authorization.
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Bioinformatics
Protein Aliases: histocompatibility antigen HLA-DR alpha; HLA class II histocompatibility antigen, DR alpha chain; MHC cell surface glycoprotein; MHC class II antigen DRA
Gene Aliases: HLA-DRA; HLA-DRA1; MLRW
UniProt ID: (Human) P01903
Entrez Gene ID: (Human) 3122
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