HLA-DPB1 Recombinant Monoclonal Antibody

Code: CSB-RA727193A0HU

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Size:

50μl100μl

US$210

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Species Reactivity: Human

Application: ELISA, FC

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Target Background

Product Details

Uniprot NO.

P04440

Target Names

HLA-DPB1

Alternative Names

HLA class II histocompatibility antigen, DP beta 1 chain (HLA class II histocompatibility antigen, DP(W4) beta chain) (MHC class II antigen DPB1), HLA-DPB1, HLA-DP1B

Species Reactivity

Human

Immunogen

A synthesized peptide from human HLA-DPB1 protein

Conjugate

Non-conjugated

Clonality

Monoclonal

Isotype

Rabbit IgG

Clone No.

10G5

Purification Method

Affinity-chromatography

Concentration

It differs from different batches. Please contact us to confirm it.

Buffer

Preservative: 0.03% Proclin 300
Constituents: 50% Glycerol, 0.01M PBS, PH 7.4

Form

Liquid
Note: We will preferentially ship the format that we have in stock, however, if you have any special requirement for the format, please remark your requirement when placing the order, we will prepare according to your demand.

Scope Application

ELISA Protocol Flow Cytometry (FC) Protocol

Recommended Dilution

Application	Recommended Dilution
FC	1:50-1:200

Storage

Upon receipt, store at -20°C or -80°C. Avoid repeated freeze.

Lead Time

Basically, we can dispatch the products out in 1-3 working days after receiving your orders. Delivery time maybe differs from different purchasing way or location, please kindly consult your local distributors for specific delivery time.
Note: All of our proteins are default shipped with normal blue ice packs, if you request to ship with dry ice, please communicate with us in advance and extra fees will be charged.

Usage

For Research Use Only. Not for use in diagnostic or therapeutic procedures.

Datasheet & COA

Antibody FAQs

Images

Overlay Peak curve showing jurkat cells stained with CSB-RA727193A0HU (red line) at 1:100. The cells were fixed in 4% formaldehyde and permeated by 0.2% TritonX-100 for 10min. Then 10% normal goat serum to block non-specific protein-protein interactions followed by the antibody (1ug/1*10⁶cells) for 45min at 4℃. The secondary antibody used was FITC-conjugated goat anti-rabbit IgG (H+L) at 1/200 dilution for 35min at 4℃.Control antibody (green line) was Rabbit IgG (1ug/1*10⁶cells) used under the same conditions. Acquisition of >10,000 events was performed.

Description

HLA-DPB1 encodes the beta chain of the HLA-DP heterodimer, a major histocompatibility complex class II molecule essential for antigen presentation to CD4+ T cells. This protein plays a central role in adaptive immunity, presenting processed peptides to helper T cells and shaping immune responses against pathogens and tumors. HLA-DPB1 has gained significant attention in transplantation immunology, where mismatches between donor and recipient alleles influence graft-versus-host disease risk and transplant outcomes. Additionally, HLA-DPB1 polymorphisms have been associated with susceptibility to autoimmune conditions and certain malignancies, making it a compelling target for immunogenetics and immuno-oncology research.

This recombinant monoclonal antibody, clone 10G5, offers the consistency and reliability that demanding immunological studies require. Generated against a synthetic peptide derived from human HLA-DPB1, the antibody is produced using recombinant technology, ensuring sequence-defined specificity and eliminating the lot-to-lot variability that can compromise longitudinal studies or multi-site collaborations. The rabbit IgG format provides excellent signal-to-noise characteristics for sensitive detection applications.

Validation by flow cytometry demonstrates robust performance in detecting HLA-DPB1 in Jurkat cells, a human T cell leukemia line commonly used in immunological research. At a 1:100 dilution, the antibody produces clear separation from isotype control, confirming specific target recognition in fixed and permeabilized cells. This makes it well-suited for intracellular staining protocols examining MHC class II expression patterns.

Researchers investigating antigen presentation pathways, T cell activation mechanisms, transplant immunology, or HLA-associated disease susceptibility will find this antibody a dependable tool for their flow cytometry and ELISA-based workflows.

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Target Background

Function(From Uniprot)

Binds peptides derived from antigens that access the endocytic route of antigen presenting cells (APC) and presents them on the cell surface for recognition by the CD4 T-cells. The peptide binding cleft accommodates peptides of 10-30 residues. The peptides presented by MHC class II molecules are generated mostly by degradation of proteins that access the endocytic route, where they are processed by lysosomal proteases and other hydrolases. Exogenous antigens that have been endocytosed by the APC are thus readily available for presentation via MHC II molecules, and for this reason this antigen presentation pathway is usually referred to as exogenous. As membrane proteins on their way to degradation in lysosomes as part of their normal turn-over are also contained in the endosomal/lysosomal compartments, exogenous antigens must compete with those derived from endogenous components. Autophagy is also a source of endogenous peptides, autophagosomes constitutively fuse with MHC class II loading compartments. In addition to APCs, other cells of the gastrointestinal tract, such as epithelial cells, express MHC class II molecules and CD74 and act as APCs, which is an unusual trait of the GI tract. To produce a MHC class II molecule that presents an antigen, three MHC class II molecules (heterodimers of an alpha and a beta chain) associate with a CD74 trimer in the ER to form a heterononamer. Soon after the entry of this complex into the endosomal/lysosomal system where antigen processing occurs, CD74 undergoes a sequential degradation by various proteases, including CTSS and CTSL, leaving a small fragment termed CLIP (class-II-associated invariant chain peptide). The removal of CLIP is facilitated by HLA-DM via direct binding to the alpha-beta-CLIP complex so that CLIP is released. HLA-DM stabilizes MHC class II molecules until primary high affinity antigenic peptides are bound. The MHC II molecule bound to a peptide is then transported to the cell membrane surface. In B-cells, the interaction between HLA-DM and MHC class II molecules is regulated by HLA-DO. Primary dendritic cells (DCs) also to express HLA-DO. Lysosomal microenvironment has been implicated in the regulation of antigen loading into MHC II molecules, increased acidification produces increased proteolysis and efficient peptide loading.

Gene References into Functions

Data suggest that HLA-DP molecules with beta-chains encoding Gly84 (DP(84Gly)) uses both class I and II antigen-processing pathways to present peptides derived from intracellular and extracellular sources. PMID:28489076
HLA-DP polymorphisms (rs3077 and rs9277535) were associated with Systemic lupus erythematosus susceptibility in a Chinese population PMID:28094303
High frequency expression of DPB1*0401 and *0601 are significantly associated with susceptibility to rheumatoid arthritis, it may be a risk factor for occurrence of rheumatoid arthritis. Low frequency expression of DPB1*0101, *0402 and *0501 may be negatively associated with rheumatoid arthritis, it may be a protective factor for occurrence of rheumatoid arthritis. PMID:29425827
The rs3117242 of HLA-DPB1 could be considered a genetic risk factor for granulomatosis with polyangiitis in Chinese Han people. PMID:26014903
HLA-DPB1*05:01 gene was associated with the geographical region of PV and the BTNL2 gene was significantly associated with family history and age of onset of PV. In conclusion, the HLA-DPB1*05:01 and BTNL2 genes might be responsible for the complicacy of clinical features. PMID:28581127
In this single-center study, HLA-DPB1 matching influenced outcomes of patients undergoing ASCT for hematologic malignancy. PMID:28632323
HLA-DPB1*15:01 allele was more frequent in the spontaneous seroconverted control group compared to Chronic hepatitis B Turkish patients. PMID:29560661
Genotyping and expression analysis in HLA class II gene revealed that two single nucleotide polymorphisms of HLA-DPB1 (rs2071025 and rs3116996) were significantly correlated to RNA expression and progression of hepatitis C virus-related liver diseases. PMID:28332201
Amino acid changes in the allergen-binding pocket of HLA-DPbeta1 are likely to influence pollinosis/sensitization to the allergenic peptide of JC pollen and determine the pollinosis risk for each individual exposed to JC pollen. PMID:28460831
The results showed that rs9277535 HLA-DPB1 allele frequency is associated with chronic hepatitis B infection in the Turkish patients. PMID:28119119
report contributes to emerging data showing clinical significance of the HLA-DP region genetic markers beyond structural matching of DPB1 alleles. PMID:27595289
The HLA-DP rs9277535 variant genotypes were directly associated with hepatitis B virus persistence compared to healthy controls. PMID:27291710
No statistically significant association was found between rs9277535 SNP and chronic hepatitis B. PMID:28613373
Two new signals were observed at genome-wide significance (P < 5 x 10-8), namely, rs7216064 (17q24.3, BPTF), for overall lung adenocarcinoma risk, and rs3817963 (6p21.3, BTNL2) which is specific to cases with EGFR mutations. In further sub-analyses by EGFR status, rs9387478 (ROS1/DCBLD1) and rs2179920 (HLA-DPB1) showed stronger estimated associations in EGFR-positive compared to EGFR-negative cases PMID:28025329
we show strong immunogenicity of HLA-DPB1 mismatch alleles in CD45RA-selected CD4 T cells of stem-cell donors and introduce a novel strategy to reliably generate HLA-DPB1-specific CD4 CTL that might be powerful cellular therapeutics in relapsed or refractory AML after HSCT. PMID:27479183
There was no increased risk of rheumatoid arthritis in mothers of children with phenylalanine at position 9 of DPB1. PMID:28391248
rs141530233 and rs1042169 at the HLA-DPB1 locus are associated with ANCA-associated vasculitis risk. PMID:28029757
Seven nonconservative AA substitutions in peptide-binding positions had a significantly stronger impact on DeltaFD compared with 5 others (P = .0025), demonstrating qualitative differences in the relative impact of AA polymorphism in HLA-DPB1. PMID:27162243
Study showed that HLA-DQ (rs7453920) was associated with prognosis of liver transplant recipients. The A allele of rs7453920 served as a protective factor in liver function recovery. HLA-DP (rs3077 and rs9277535) did not show any correlation with the hepatitis B virus infection and prognosis. PMID:28640108
two dermatomyositis susceptibility loci at 7q34 and 10q24.2 PMID:27153935
this study shows that HLA-DP gene polymorphisms are associated with ankylosing spondylitis in Southwest China PMID:27394003
DRB1*13:02 (P = 0.0011, Pc = 0.0319, odds ratio [OR] 0.46, 95% confidence interval [CI] 0.29-0.73), DRB1*14:06 (P = 6.60X10-5, Pc = 0.0020, OR 0.05, 95%CI 0.01-0.41), DQB1*03:01 (P = 0.0009, Pc = 0.0150, OR 0.56, 95%CI 0.40-0.79), and DPB1*02:01 (P = 5.16X10-6, Pc = 8.77X10-5, OR 0.52, 95%CI 0.39-0.69) were protectively associated with Systemic Sclerosis in Japanese. PMID:27116456
The HLA-DPB1*04:01:01G allele was significantly more frequent among women diagnosed with severe preeclampsia/eclampsia compared with controls. PMID:27121092
the HLA-DP/DQ clusters contribute independently to HBV infection, and the 3'-UTR region of HLA-DPB1 represents an important functional region involved in HBV infection PMID:26197724
Significant associations between chronic hepatitis B infection and five DPB1 alleles (two susceptibility alleles, DPB1(*) 05:01 and (*) 09:01, and three protective alleles, DPB1(*) 02:01, (*) 04:01, and (*) 04:02) were confirmed in Japanese individuals. PMID:26449183
The observed positive association between integrated HIV-1 DNA load and frequency of CD8(+)DR/DP/DQ(+) cells indicates that a close correlation between HIV persistence and immune activation continues during consistently suppressive therapy. PMID:26498496
Our results further confirm that genetic variants in the HLA-DP locus are strongly associated with reduced HBV infection and increased the likelihood of spontaneous viral clearance. PMID:26462556
Thyroid autoimmunity is highly prevalent in type 1 diabetes mellitus patients and the risk is modulated by HLA-DRB1 and HLA-DPB1 loci. PMID:26405068
DQB1*06 and DPB1*13 have roles in modulating vaccine-induced antibody responses to affect HIV-1 acquisition PMID:26180102
rs9277535 in HLA-DPB1 is a significantly associated SNP associated with chronic hepatitis B virus infection and viral clearance. PMID:24846544
Cellular misfolded proteins rescued from degradation by MHC class II molecules seem to be involved in autoimmune diseases as a target for autoantibodies. (review) PMID:26915265
findings indicate the HLA-DPB1*13:01 and +550 A alleles are significantly associated with cervical squamous cell carcinoma (CSCC) risk in Taiwanese women; in addition, significant increase in CSCC risk was observed for HLA-DPB1*13:01-G and DPB1*02:01-A haplotypes PMID:26031576
There was a significant linkage disequilibrium between these HLA-DP candidate SNPs and HLA-DPB1 protective alleles PMID:25389088
This implies the potential of rs3128965 of HLA-DPB1 as a genetic marker for diagnosis and prediction of the AERD phenotype. PMID:25536158
HLA-DPB1*04:01 may reduce the risk of tissue transglutaminase autoantibodies, an early marker of celiac disease, among DR3-DQ2 children, confirming that additional variants in the HLA region influence the risk for celiac disease autoimmunity. PMID:26010309
Among recipients of HLA-DPB1-mismatched transplants from donors with the low-expression allele, recipients with the high-expression allele had a high risk of GVHD. PMID:26267621
Results identified new susceptibility variants to narcolepsy in HLA-DPB1 and HLA-DQB1 loci in Japanese patients. PMID:25256355
The affinities of peptides for Beryllium loaded HLA-DP2 were found to depend of their amino acid composition and the peptides carrying acidic group at positions 4 and 7 are among the strongest binders. PMID:25369028
Polymorphisms in HLA-DPB1 are strongly associated with interindividual differences in neutralizing antibody levels to rubella vaccination. PMID:25293367
This is the first report of the association between early Crohn's disease and the HLA DRB1*501 single nucleotide polymorphisms. PMID:25664710
No increase in sarcoidosis was seen with either Glu69 or beryllium exposure. In Glu69 positive men with exposure >/=10 years, the trend towards increasing rate of COPD was reversed; a significant interaction of duration of exposure and Glu69 was detected. PMID:25305207
Data indicate that thirty eight HLA-DPB1 alleles were found in the systemic scleroderma cohort. PMID:24498086
HLA-DPB1 alleles influence the kinetics of anti-hepatitis B antibodies in hepatitis B booster recipients. PMID:24285177
Data indicate that HLA-DP2 transgenic mice developed a beryllium-specific adaptive immune response composed of CD4+ T cells. PMID:24912188
Data indicate five members of of DPbeta chains containing Lys-69 and GGPM 84-87, which assemble with DRalpha. PMID:24214983
Our results demonstrated that the rs3077 and rs9277535 HLA-DP polymorphisms reduced hepatitis B virus infection and increased the likelihood of spontaneous viral clearance in some Asian populations. PMID:23601003
Studied three HLA-DP and IL28B SNPs of CHB patients with and without spontaneous HBsAg seroclearance. Haplotype analysis of HLA-DP polymorphisms showed association with HBsAg seroclearance. PMID:23449268
HLA-DRB1*04:01 and HLA-DPB1*04:01 alleles were detected at higher frequencies in influenza-seroprotected compared with non-seroprotected individuals. PMID:23951151
The conditional logistic regression tests showed that DPB1*04:01 is independently associated with non-obstructive azoospermia(NOA), confirming the involvement of the HLA region in the etiology of NOA in Japanese patients. PMID:23934009
We identified the SEMA6A and HLA-DP loci as significant contributors to risk for granulomatosis with polyangiitis, with the HLA-DPB1*04 allele almost completely accounting for the MHC association PMID:23740775

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Subcellular Location

Cell membrane; Single-pass type I membrane protein. Endoplasmic reticulum membrane; Single-pass type I membrane protein. Golgi apparatus, trans-Golgi network membrane; Single-pass type I membrane protein. Endosome membrane; Single-pass type I membrane protein. Lysosome membrane; Single-pass type I membrane protein. Note=The MHC class II complex transits through a number of intracellular compartments in the endocytic pathway until it reaches the cell membrane for antigen presentation.

Protein Families

MHC class II family

Database Links

HGNC: 4940

UNIGENE: Hs.485130

KEGG: hsa:3115

STRING: 9606.ENSP00000408146

OMIM: 142858

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