Anti-HLA-DQA1 Antibody (C-term)

Product Name

Anti-HLA-DQA1 Antibody (C-term)

View all HLA-DQA1 Antibodies

SKU/Catalog Number

M00232-2

Size

80 µl

Description

Boster Bio Anti-HLA-DQA1 Antibody (C-term) (Catalog # M00232-2). Tested in WB, Flow Cytometry, IF application(s). This antibody reacts with Human, Mouse.

Storage & Handling

Maintain refrigerated at 2-8°C for up to 2 weeks. For long-term storage, store at -20°C in small aliquots to prevent freeze-thaw cycles.

Cite This Product

Anti-HLA-DQA1 Antibody (C-term) (Boster Biological Technology, Pleasanton CA, USA, Catalog # M00232-2)

Host

Rabbit

Contents

Purified polyclonal antibody supplied in PBS with 0.09% (W/V) sodium azide.

Clonality

Polyclonal

Isotype

Rabbit IgG

Immunogen

This HLA-DQA1 antibody is generated from a rabbit immunized with a KLH conjugated synthetic peptide between 188-222 amino acids from the C-terminal region of human HLA-DQA1.

*Blocking peptide can be purchased. Costs vary based on immunogen length. Contact us for pricing.

Reactive Species

M00232-2 is reactive to HLA-DQA1 in Human, Mouse

Applications

M00232-2 is guaranteed for Flow Cytometry, IF, WB Boster Guarantee

Observed Molecular Weight

Calculated molecular weight

27805 Da

Background of HLA-DQA1

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.

Antibody Validation

Boster validates all antibodies on WB, IHC, ICC, Immunofluorescence, and ELISA with known positive control and negative samples to ensure specificity and high affinity, including thorough antibody incubations.

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Assay Dilutions Recommendation

The recommendations below provide a starting point for assay optimization. The actual working concentration varies and should be decided by the user.

IF: 1:25
WB: 1:8000
FC: 1:25

Validation Images & Assay Conditions

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Immunofluorescent analysis of 4% paraformaldehyde-fixed, 0. 1% Triton X-100 permeabilized NIH/3T3 (mouse embryonic fibroblast cell line) cells labeling HLA-DQA1 with M00232-2 at 1/25 dilution, followed by Dylight® 488-conjugated goat anti-rabbit IgG secondary antibody at 1/200 dilution (green). Immunofluorescence image showing cytoplasm staining on NIH/3T3 cell line. The nuclear counter stain is DAPI (blue).

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Anti-HLA-DQA1 Antibody (C-term)at 1:2000 dilution + human spleen lysates
Lysates/proteins at 20 µg per lane.
Secondary
Goat Anti-Rabbit IgG, (H+L), Peroxidase conjugated at 1/10000 dilution
Predicted band size : 28 kDa
Blocking/Dilution buffer: 5% NFDM/TBST.

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All lanes : Anti-HLA-DQA1 Antibody (C-term) at 1:8000 dilution
Lane 1: Daudi whole cell lysates
Lane 2: Raji whole cell lysates
Lysates/proteins at 20 µg per lane.
Secondary
Goat Anti-Rabbit IgG, (H+L), Peroxidase conjugated at 1/10000 dilution
Predicted band size : 28 kDa
Blocking/Dilution buffer: 5% NFDM/TBST.

Click image to see more details

Overlay histogram showing K562 cells stained with M00232-2 (red line). The cells were fixed with 2% paraformaldehyde (10 min) and then permeabilized with 90% methanol for 10 min. The cells were then icubated in 2% bovine serum albumin to block non-specific protein-protein interactions followed by the antibody (M00232-2, 1:25 dilution) for 60 min at 37ºC. The secondary antibody used was Alexa Fluor® 488 goat anti-rabbit lgG (H+L) at 1/400 dilution for 40 min at 37ºC. Isotype control antibody (blue line) was rabbit IgG1 (1μg/1x10^6 cells) used under the same conditions. Acquisition of >10, 000 events was performed.

Gene/Protein Information For HLA-DQA1 (Source: Uniprot.org, NCBI)

Alternative Names

CD; CELIAC1DQ alpha 1 chain; DC-1 alpha chain; DQ-A1; FLJ27088; FLJ27328; GSE; HLA class II histocompatibility antigen, DQ(W3) alpha chain; HLA-DCA; HLA-DQA; leucocyte antigen DQA1; leukocyte antigen alpha chain; major histocompatibility complex, class II, DQ alpha 1; MGC149527; MHC class II antigen; MHC class II DQA1; MHC class II HLA-D alpha glycoprotein; MHC class II HLA-DQ-alpha-1; MHC class II surface glycoprotein; MHC HLA-DQ alpha HLA-DQA1 CELIAC1, DQ-A1, DQA1, HLA-DQA major histocompatibility complex, class II, DQ alpha 1 HLA class II histocompatibility antigen, DQ alpha 1 chain|DC-1 alpha chain|DC-alpha|HLA class II histocompatibility antigen DQ alpha chain|HLA-DCA|MHC HLA-DQ alpha|MHC class II DQ alpha chain|MHC class II DQA1|MHC class II HLA-DQ-alpha-1|MHC class II antigen DQA1|MHC class II protein|truncated MHC class II antigen

For more info on HLA-DQA1, check out the HLA-DQA1 Infographic

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In this infographic, you will see the following information for HLA-DQA1: database IDs, superfamily, protein function, synonyms, molecular weight, chromosomal locations, tissues of expression, subcellular locations, post-translational modifications, and related diseases, research areas & pathways. If you want to see more information included, or would like to contribute to it and be acknowledged, please contact [email protected].

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