HLA-DRB4 Recombinant Rabbit Monoclonal Antibody [JE55-85]
Catalog# ET7111-17
HLA-DRB4 Recombinant Rabbit Monoclonal Antibody [JE55-85]
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WB
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IHC-P
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FC
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Human
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unconjugated
Overview
Product Name
HLA-DRB4 Recombinant Rabbit Monoclonal Antibody [JE55-85]
Antibody Type
Recombinant Rabbit monoclonal Antibody
Immunogen
Synthetic peptide corresponding to the extracellular domain of Human HLA-DRB4.
Species Reactivity
Human
Validated Applications
WB, IHC-P, FC
Molecular Weight
30 kDa
Positive Control
Raji cell lysates, human tonsil tissue, human spleen tissue, human breast carcinoma tissue, Jurkat.
Conjugation
unconjugated
Clone Number
JE55-85
RRID
Product Features
Form
Liquid
Concentration
1 mg/mL.(The concentration of this product may be batch-dependent)
Storage Instructions
Shipped at 4℃. Store at +4℃ short term (1-2 weeks). Store at -20℃ long term.
Storage Buffer
1*TBS (pH7.4), 0.05% BSA, 40% Glycerol. Preservative: 0.05% Sodium Azide.
Isotype
IgG
Purification Method
Protein A affinity purified.
Application Dilution
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WB
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1:500-1:2,000
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IHC-P
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1:50-1:200
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FC
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1:50-1:100
Target
Function
Major histocompatibility complex (MHC) class II molecules destined for presentation to CD4+ helper T cells is determined by two key events. These events include the dissociation of class II-associated invariant chain peptides (CLIP) from an antigen binding groove in MHC II α/β dimers through the activity of MHC molecules HLA-DM and -DO, and subsequent peptide antigen binding. Accumulating in endosomal/lysosomal compartments and on the surface of B cells, HLA-DM, -DO molecules regulate the dissociation of CLIP and the subsequent binding of exogenous peptides to HLA class II molecules (HLA-DR, -DQ and -DP) by sustaining a conformation that favors peptide exchange. RFLP analysis of HLA-DM genes from rheumatoid arthritis (RA) patients suggests that certain polymorphisms are genetic factors for RA susceptibility. HLA-B belongs to the HLA class I heavy chain paralogs. Class I molecules play a central role in the immune system by presenting peptides derived from the endoplasmic reticulum lumen. HLA-B and -C can form heterodimers consisting of a membrane anchored heavy chain and a light chain (β-2-Microglobulin). Polymorphisms yield hundreds of HLA-B and -C alleles.
Background References
1. Grubic Z. et. al. The distribution of the DRB4*01:03:01:02N null allele in HLA-DRB1~DQB1 haplotypes in the Croatian population. HLA. 2018 Jan
2. van Sonderen A. et. al. Anti-LGI1 encephalitis is strongly associated with HLA-DR7 and HLA-DRB4. Ann Neurol. 2017 Feb
Subcellular Location
Lysosome membrane, Endosome membrane, Late endosome membrane, trans-Golgi network membrane, Endoplasmic reticulum membrane, Cell membrane.
UNIPROT
Synonyms
DR 4 antibody
DR beta 4 chain antibody
DR4 antibody
DRB1 transplantation antigen antibody
DRB4 antibody
DRB4_HUMAN antibody
HLA class II histocompatibility antigen antibody
HLA class II histocompatibility antigen DR beta 4 chain antibody
HLA-DRB4 antibody
Human leucocyte antigen DRB4 antibody
ExpandImages
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Western blot analysis of HLA-DRB4 on Raji cell lysates. Proteins were transferred to a PVDF membrane and blocked with 5% BSA in PBS for 1 hour at room temperature. The primary antibody (ET7111-17, 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.
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Immunohistochemical analysis of paraffin-embedded human tonsil tissue using anti-HLA-DRB4 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 (ET7111-17, 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.
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Immunohistochemical analysis of paraffin-embedded human spleen tissue using anti-HLA-DRB4 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 (ET7111-17, 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.
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Immunohistochemical analysis of paraffin-embedded human breast carcinoma tissue using anti-HLA-DRB4 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 (ET7111-17, 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.
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Flow cytometric analysis of HLA-DRB4 was done on Jurkat cells. The cells were fixed, permeabilized and stained with the primary antibody (ET7111-17, 1/50) (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"