HLA-DR Rabbit Polyclonal Antibody
Overview
Product Name
HLA-DR Rabbit Polyclonal Antibody
Antibody Type
Rabbit Polyclonal Antibody
Immunogen
Synthetic peptide within N-terminal human HLA-DR.
Species Reactivity
Human
Validated Applications
WB, IF-Cell, IHC-P, FC
Molecular Weight
Predicted band size: 29 kDa
Positive Control
Raji cell lysate, Daudi cell lysate, Hela, SW480, human spleen tissue, Jurkat.
Conjugation
unconjugated
RRID
Product Features
Form
Liquid
Concentration
Storage Instructions
Shipped at 4℃. Store at +4℃ short term (1-2 weeks). It is recommended to aliquot into single-use upon delivery. Store at -20℃ long term.
Storage Buffer
1*PBS (pH7.4), 0.2% BSA, 40% Glycerol. Preservative: 0.05% Sodium Azide.
Isotype
IgG
Purification Method
Immunogen affinity purified.
Application Dilution
-
WB
-
1:1,000-1:5,000
-
IF-Cell
-
1:50-1:100
-
IHC-P
-
1:50-1:500
-
FC
-
1:50-1:100
Target
Function
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.
Background References
1. Conjunctival Inflammatory Gene Expression Profiling in Dry Eye Disease: Correlations With HLA-DRA and HLA-DRB1. Kessal K. et. al. Front Immunol. 2018 Oct
2. HLA-DRA variants predict penicillin allergy in genome-wide fine-mapping genotyping. Guéant JL. et. al. J Allergy Clin Immunol. 2015 Jan
Sequence Similarity
Belongs to the MHC class II family.
Post-translational Modification
Ubiquitinated by MARCH1 or MARCH8 at Lys-244 leading to down-regulation of MHC class II. When associated with ubiquitination of the beta subunit of HLA-DR: HLA-DRB4 'Lys-254', the down-regulation of MHC class II may be highly effective.
Subcellular Location
Lysosome membrane, Endosome membrane, Late endosome membrane, trans-Golgi network membrane, Endoplasmic reticulum membrane, Cell membrane.
UNIPROT
Synonyms
DASS-397D15.1 antibody
DR alpha chain antibody
DR alpha chain precursor antibody
DRA_HUMAN antibody
DRB1 antibody
DRB4 antibody
FLJ51114 antibody
Histocompatibility antigen HLA DR alpha antibody
Histocompatibility antigen HLA-DR alpha antibody
HLA class II histocompatibility antigen antibody
ExpandDASS-397D15.1 antibody
DR alpha chain antibody
DR alpha chain precursor antibody
DRA_HUMAN antibody
DRB1 antibody
DRB4 antibody
FLJ51114 antibody
Histocompatibility antigen HLA DR alpha antibody
Histocompatibility antigen HLA-DR alpha antibody
HLA class II histocompatibility antigen antibody
HLA class II histocompatibility antigen DR alpha chain antibody
HLA DR1B antibody
HLA DR3B antibody
HLA DRA antibody
HLA DRA1 antibody
HLA DRB1 antibody
HLA DRB3 antibody
HLA DRB4 antibody
HLA DRB5 antibody
HLA-DR histocompatibility type antibody
HLA-DRA antibody
HLADR4B antibody
HLADRA1 antibody
HLADRB antibody
Major histocompatibility complex class II DR alpha antibody
Major histocompatibility complex class II DR beta 1 antibody
Major histocompatibility complex class II DR beta 3 antibody
Major histocompatibility complex class II DR beta 4 antibody
Major histocompatibility complex class II DR beta 5 antibody
MGC117330 antibody
MHC cell surface glycoprotein antibody
MHC class II antigen DRA antibody
MHC II antibody
MLRW antibody
OTTHUMP00000029406 antibody
OTTHUMP00000029407 antibody
CollapseImages
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Western blot analysis of HLA-DR on different lysates. Proteins were transferred to a PVDF membrane and blocked with 5% BSA in PBS for 1 hour at room temperature. The primary antibody (R1510-35, 1/1,000) was used in 5% BSA at room temperature for 2 hours. Goat Anti-Rabbit IgG - HRP Secondary Antibody (HA1001) at 1:5,000 dilution was used for 1 hour at room temperature.
Positive control:
Lane 1: Raji cell lysate
Lane 2: Daudi cell lysate -
ICC staining of HLA-DR in Hela cells (green). Formalin fixed cells were permeabilized with 0.1% Triton X-100 in TBS for 10 minutes at room temperature and blocked with 1% Blocker BSA for 15 minutes at room temperature. Cells were probed with the primary antibody (R1510-35, 1/50) for 1 hour at room temperature, washed with PBS. Alexa Fluor®488 Goat anti-Rabbit IgG was used as the secondary antibody at 1/1,000 dilution. The nuclear counter stain is DAPI (blue).
-
ICC staining of HLA-DR in SW480 cells (green). Formalin fixed cells were permeabilized with 0.1% Triton X-100 in TBS for 10 minutes at room temperature and blocked with 1% Blocker BSA for 15 minutes at room temperature. Cells were probed with the primary antibody (R1510-35, 1/50) for 1 hour at room temperature, washed with PBS. Alexa Fluor®488 Goat anti-Rabbit IgG was used as the secondary antibody at 1/1,000 dilution. The nuclear counter stain is DAPI (blue).
-
Immunohistochemical analysis of paraffin-embedded human spleen tissue using anti-HLA-DR antibody. The section was pre-treated using heat mediated antigen retrieval with Tris-EDTA buffer (pH 8.0-8.4) for 20 minutes.The tissues were blocked in 5% BSA for 30 minutes at room temperature, washed with ddH2O and PBS, and then probed with the primary antibody (R1510-35, 1/200) for 30 minutes at room temperature. The detection was performed using an HRP conjugated compact polymer system. DAB was used as the chromogen. Tissues were counterstained with hematoxylin and mounted with DPX.
-
Flow cytometric analysis of HLA-DR was done on Jurkat cells. The cells were fixed, permeabilized and stained with the primary antibody (R1510-35, 1/200) (red). After incubation of the primary antibody at room temperature for an hour, the cells were stained with a Alexa Fluor 488-conjugated Goat anti-Rabbit IgG Secondary antibody at 1/1000 dilution for 30 minutes.Unlabelled sample was used as a control (cells without incubation with primary antibody; black).
Please note: All products are "FOR RESEARCH USE ONLY AND ARE NOT INTENDED FOR DIAGNOSTIC OR THERAPEUTIC USE"
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