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AB240087

Anti-MHC class I + HLA A + HLA B antibody [EPR1394Y] - BSA and Azide free

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(3 Publications)

Rabbit Recombinant Monoclonal HLA A antibody. Carrier free. Suitable for IHC-P, Flow Cyt, WB, ICC/IF and reacts with Human samples. Cited in 3 publications.

View Alternative Names

HLAA, HLA-A, Human leukocyte antigen A

4 Images
Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) - Anti-MHC class I + HLA A + HLA B antibody [EPR1394Y] - BSA and Azide free (AB240087)
  • IHC-P

Unknown

Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) - Anti-MHC class I + HLA A + HLA B antibody [EPR1394Y] - BSA and Azide free (AB240087)

Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) analysis of human colon carcinoma tissue sections labeling MHC class I+HLA A+HLA B with purified ab134189 at 1/4000 dilution (0.26 μg/mL). Heat mediated antigen retrieval was performed using Bond™ Epitope Retrieval Solution 2 (pH 9.0). Rabbit specific IHC polymer detection kit HRP/DAB (ab209101) was used as the secondary antibody. Negative control : PBS instead of the primary antibody. Hematoxylin was used as a counterstain.
The immunostaining was performed on a Leica Biosystems BOND® RX instrument.

This data was developed using the same antibody clone in a different buffer formulation containing PBS, BSA, glycerol, and sodium azide (ab134189).

Western blot - Anti-MHC class I + HLA A + HLA B antibody [EPR1394Y] - BSA and Azide free (AB240087)
  • WB

Unknown

Western blot - Anti-MHC class I + HLA A + HLA B antibody [EPR1394Y] - BSA and Azide free (AB240087)

Blocking/Diluting buffer : 5% NFDM/TBST

This data was developed using the same antibody clone in a different buffer formulation containing PBS, BSA, glycerol, and sodium azide (ab134189).

All lanes:

Western blot - Anti-MHC class I + HLA A + HLA B antibody [EPR1394Y] (<a href='/en-us/products/primary-antibodies/mhc-class-i-hla-a-hla-b-antibody-epr1394y-ab134189'>ab134189</a>) at 1/2000 dilution

Lane 1:

Raji (Human Burkitt's lymphoma B lymphocyte) whole cell lysate at 20 µg

Lane 2:

Human liver lysate at 20 µg

Lane 3:

THP-1 (Human monocytic leukemia monocyte) whole cell lysate at 20 µg

Lane 4:

U-937 (Human histiocytic lymphoma monocyte) whole cell lysate at 20 µg

Secondary

All lanes:

Goat Anti-Rabbit IgG (HRP) with minimal cross-reactivity with human IgG at 1/2000 dilution

Observed band size: 35 kDa,44 kDa

false

Immunocytochemistry/ Immunofluorescence - Anti-MHC class I + HLA A + HLA B antibody [EPR1394Y] - BSA and Azide free (AB240087)
  • ICC/IF

Lab

Immunocytochemistry/ Immunofluorescence - Anti-MHC class I + HLA A + HLA B antibody [EPR1394Y] - BSA and Azide free (AB240087)

Immunocytochemistry/ Immunofluorescence analysis of Raji (human Burkitt's lymphoma B lymphocyte) cells labeling MHC class I+HLA A+HLA B with purified ab134189 at 1/500 dilution (4.3 μg/mL). Cells were fixed in 100% Methanol. Goat anti rabbit IgG (Alexa Fluor® 488, ab150077) was used as the secondary antibody at 1/1000 (2 μg/mL) dilution. DAPI (blue) was used as nuclear counterstain.

This data was developed using the same antibody clone in a different buffer formulation containing PBS, BSA, glycerol, and sodium azide (ab134189).

Flow Cytometry - Anti-MHC class I + HLA A + HLA B antibody [EPR1394Y] - BSA and Azide free (AB240087)
  • Flow Cyt

Unknown

Flow Cytometry - Anti-MHC class I + HLA A + HLA B antibody [EPR1394Y] - BSA and Azide free (AB240087)

Flow Cytometry analysis of Raji (Human Burkitt's lymphoma B lymphocyte) cells labeling MHC class I+HLA A+HLA B with Purified ab134189 at 1 : 100 dilution (10 μg/ml) (Red). Cells were fixed with / and permeabilised with /. A Goat anti rabbit IgG (Alexa Fluor® 488, ab150077) secondary antibody was used at 1 : 2000. Isotype control - Rabbit monoclonal IgG (Black). Unlabeled control - Cell without incubation with primary antibody and secondary antibody (Blue).

This data was developed using the same antibody clone in a different buffer formulation containing PBS, BSA, glycerol, and sodium azide (ab134189).

  • Unconjugated

    Anti-MHC class I + HLA A + HLA B antibody [EPR1394Y]

  • 775 Alexa Fluor® 750

    Alexa Fluor® 750 Anti-MHC class I + HLA A + HLA B antibody [EPR1394Y]

  • 519 Alexa Fluor® 488

    Alexa Fluor® 488 Anti-MHC class I + HLA A + HLA B antibody [EPR1394Y]

  • 578 PE

    PE Anti-MHC class I + HLA A + HLA B antibody [EPR1394Y]

  • 660 APC

    APC Anti-MHC class I + HLA A + HLA B antibody [EPR1394Y]

  • 665 Alexa Fluor® 647

    Alexa Fluor® 647 Anti-MHC class I + HLA A + HLA B antibody [EPR1394Y]

  • 617 Alexa Fluor® 594

    Alexa Fluor® 594 Anti-MHC class I + HLA A + HLA B antibody [EPR1394Y]

  • 603 Alexa Fluor® 568

    Alexa Fluor® 568 Anti-MHC class I + HLA A + HLA B antibody [EPR1394Y]

  • 565 Alexa Fluor® 555

    Alexa Fluor® 555 Anti-MHC class I + HLA A + HLA B antibody [EPR1394Y]

  • HRP

    HRP Anti-MHC class I + HLA A + HLA B antibody [EPR1394Y]

Key facts

Host species

Rabbit

Clonality

Monoclonal

Clone number

EPR1394Y

Isotype

IgG

Carrier free

Yes

Reacts with

Human

Applications

WB, IHC-P, Flow Cyt, ICC/IF

applications

Immunogen

The exact immunogen used to generate this antibody is proprietary information.

Specificity

In our hands this antibody did not work in WB with mouse samples, but customer data suggest that reactivity in ICC/IF and IHC. The target shows high sequence homology with HLA-C and HLA-E, and it is possible that this antibody will detect these proteins too.

Reactivity data

{ "title": "Reactivity Data", "filters": { "stats": ["", "Species", "Dilution Info", "Notes"], "tabs": { "all-applications": {"fullname" : "All Applications", "shortname": "All Applications"}, "IHCP" : {"fullname" : "Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections)", "shortname":"IHC-P"}, "FlowCyt" : {"fullname" : "Flow Cytometry", "shortname":"Flow Cyt"}, "WB" : {"fullname" : "Western blot", "shortname":"WB"}, "ICCIF" : {"fullname" : "Immunocytochemistry/ Immunofluorescence", "shortname":"ICC/IF"} }, "product-promise": { "all": "all", "testedAndGuaranteed": "tested", "guaranteed": "expected", "predicted": "predicted", "notRecommended": "not-recommended" } }, "values": { "Human": { "IHCP-species-checked": "testedAndGuaranteed", "IHCP-species-dilution-info": "", "IHCP-species-notes": "<p></p>", "FlowCyt-species-checked": "testedAndGuaranteed", "FlowCyt-species-dilution-info": "", "FlowCyt-species-notes": "<p><a href='/en-us/products/primary-antibodies/rabbit-igg-monoclonal-epr25a-isotype-control-low-endotoxin-azide-free-ab199376'>ab199376</a> - Rabbit monoclonal IgG, is suitable for use as an isotype control with this antibody.</p>", "WB-species-checked": "testedAndGuaranteed", "WB-species-dilution-info": "", "WB-species-notes": "<p></p>", "ICCIF-species-checked": "testedAndGuaranteed", "ICCIF-species-dilution-info": "", "ICCIF-species-notes": "<p></p>" }, "Mouse": { "IHCP-species-checked": "predicted", "IHCP-species-dilution-info": "", "IHCP-species-notes": "", "FlowCyt-species-checked": "predicted", "FlowCyt-species-dilution-info": "", "FlowCyt-species-notes": "", "WB-species-checked": "predicted", "WB-species-dilution-info": "", "WB-species-notes": "", "ICCIF-species-checked": "predicted", "ICCIF-species-dilution-info": "", "ICCIF-species-notes": "" } } }

Product details

ab240087 is the carrier-free version of ab134189.

Patented technology
Our RabMAb® technology is a patented hybridoma-based technology for making rabbit monoclonal antibodies. For details on our patents, please refer to RabMAb® patents.

What are the advantages of a recombinant monoclonal antibody?
This product is a recombinant monoclonal antibody, which offers several advantages including:

  • - High batch-to-batch consistency and reproducibility
  • - Improved sensitivity and specificity
  • - Long-term security of supply
  • - Animal-free batch production

For more information, read more on recombinant antibodies.

Species reactivity
Rat: We have preliminary internal testing data to indicate this antibody may not react with this species.
Please contact us for more information.

Conjugation ready
Our carrier-free antibodies are typically supplied in a PBS-only formulation, purified and free of BSA, sodium azide and glycerol. This conjugation-ready format is designed for use with fluorochromes, metal isotopes, oligonucleotides, and enzymes, which makes them ideal for antibody labelling, functional and cell-based assays, flow-based assays (e.g. mass cytometry) and Multiplex Imaging applications.

Use our conjugation kits for antibody conjugates that are ready-to-use in as little as 20 minutes with 1 minute hands-on-time and 100% antibody recovery: available for fluorescent dyes, HRP, biotin and gold.

Compatibility
This product is compatible with the Maxpar® Antibody Labeling Kit from Fluidigm, without the need for antibody preparation. Maxpar® is a trademark of Fluidigm Canada Inc.

Properties and storage information

Form
Liquid
Purification technique
Affinity purification Protein A
Storage buffer
pH: 7.2 - 7.4 Constituents: PBS
Shipped at conditions
Blue Ice
Appropriate short-term storage conditions
+4°C
Appropriate long-term storage conditions
+4°C
Storage information
Do Not Freeze

Supplementary information

This supplementary information is collated from multiple sources and compiled automatically.

MHC class I molecules including HLA-A and HLA-B are proteins integral to the immune system. They often refer to as HLA which stands for Human Leukocyte Antigens. Typically MHC class I proteins with a molecular mass of around 45 kDa are expressed on the surface of nearly all nucleated cells. Their main mechanical function is to present endogenous peptides to CD8+ cytotoxic T lymphocytes enabling the immune system to monitor and respond to intracellular changes such as infections or malignancies.
Biological function summary

These MHC molecules play a critical role in adaptive immunity. They form a complex with beta-2 microglobulin (β2m) to achieve stability and function properly on cell surfaces. HLA-A and HLA-B bind to short peptides derived from intracellular proteins which are then transported through the endoplasmic reticulum. The peptide-MHC complex is then expressed on the cell surface where it facilitates recognition by T cell receptors guiding immune responses against infected or transformed cells.

Pathways

MHC class I molecules are deeply involved in the antigen processing and presentation pathway as well as the immune effector process. In the antigen processing pathway proteins within the cell undergo degradation by the proteasome creating peptide fragments. These fragments are transported into the endoplasmic reticulum by the TAP (transporter associated with antigen processing) proteins where they bind with MHC class I forming a stable complex. Proteins like TAP and proteasome subunits work closely with MHC class I to ensure proper immune surveillance.

Dysregulation or alterations in MHC class I molecules particularly HLA-A and HLA-B have been linked to autoimmune diseases and cancers. For instance specific HLA alleles associate with autoimmune conditions like Type 1 Diabetes where the immune system erroneously targets pancreatic cells. In cancers a downregulation of MHC class I molecules often occurs as a mechanism to evade immune detection. Altered expression of proteins like TAP can also disrupt antigen presentation contributing to the disease onset and progression.

Product protocols

For this product, it's our understanding that no specific protocols are required. You can visit:

Target data

Antigen-presenting major histocompatibility complex class I (MHCI) molecule. In complex with B2M/beta 2 microglobulin displays primarily viral and tumor-derived peptides on antigen-presenting cells for recognition by alpha-beta T cell receptor (TCR) on HLA-A-restricted CD8-positive T cells, guiding antigen-specific T cell immune response to eliminate infected or transformed cells (PubMed : 10449296, PubMed : 12138174, PubMed : 12393434, PubMed : 1402688, PubMed : 15893615, PubMed : 17189421, PubMed : 19543285, PubMed : 21498667, PubMed : 24192765, PubMed : 24395804, PubMed : 2456340, PubMed : 2784196, PubMed : 28250417, PubMed : 7504010, PubMed : 7694806, PubMed : 9862734). May also present self-peptides derived from the signal sequence of secreted or membrane proteins, although T cells specific for these peptides are usually inactivated to prevent autoreactivity (PubMed : 25880248, PubMed : 7506728, PubMed : 7679507). Both the peptide and the MHC molecule are recognized by TCR, the peptide is responsible for the fine specificity of antigen recognition and MHC residues account for the MHC restriction of T cells (PubMed : 12796775, PubMed : 18275829, PubMed : 19542454, PubMed : 28250417). Typically presents intracellular peptide antigens of 8 to 13 amino acids that arise from cytosolic proteolysis via IFNG-induced immunoproteasome or via endopeptidase IDE/insulin-degrading enzyme (PubMed : 17079320, PubMed : 17189421, PubMed : 20364150, PubMed : 26929325, PubMed : 27049119). Can bind different peptides containing allele-specific binding motifs, which are mainly defined by anchor residues at position 2 and 9 (PubMed : 7504010, PubMed : 9862734).. Allele A*01 : 01 : Presents a restricted peptide repertoire including viral epitopes derived from IAV NP/nucleoprotein (CTELKLSDY), IAV PB1/polymerase basic protein 1 (VSDGGPNLY), HAdV-11 capsid L3/hexon protein (LTDLGQNLLY), SARS-CoV-2 3a/ORF3a (FTSDYYQLY) as well as tumor peptide antigens including MAGE1 (EADPTGHSY), MAGEA3 (EVDPIGHLY) and WT1 (TSEKRPFMCAY), all having in common a canonical motif with a negatively charged Asp or Glu residue at position 3 and a Tyr anchor residue at the C-terminus (PubMed : 1402688, PubMed : 17189421, PubMed : 19177349, PubMed : 20364150, PubMed : 24395804, PubMed : 25880248, PubMed : 26758806, PubMed : 30530481, PubMed : 32887977, PubMed : 7504010). A number of HLA-A*01 : 01-restricted peptides carry a post-translational modification with oxidation and N-terminal acetylation being the most frequent (PubMed : 25880248). Fails to present highly immunogenic peptides from the EBV latent antigens (PubMed : 18779413).. Allele A*02 : 01 : A major allele in human populations, presents immunodominant viral epitopes derived from IAV M/matrix protein 1 (GILGFVFTL), HIV-1 env (TLTSCNTSV), HIV-1 gag-pol (ILKEPVHGV), HTLV-1 Tax (LLFGYPVYV), HBV C/core antigen (FLPSDFFPS), HCMV UL83/pp65 (NLVPMVATV) as well as tumor peptide antigens including MAGEA4 (GVYDGREHTV), WT1 (RMFPNAPYL) and CTAG1A/NY-ESO-1 (SLLMWITQC), all having in common hydrophobic amino acids at position 2 and at the C-terminal anchors.. Allele A*03 : 01 : Presents viral epitopes derived from IAV NP (ILRGSVAHK), HIV-1 nef (QVPLRPMTYK), HIV-1 gag-pol (AIFQSSMTK), SARS-CoV-2 N/nucleoprotein (KTFPPTEPK) as well as tumor peptide antigens including PMEL (LIYRRRLMK), NODAL (HAYIQSLLK), TRP-2 (RMYNMVPFF), all having in common hydrophobic amino acids at position 2 and Lys or Arg anchor residues at the C-terminus (PubMed : 19543285, PubMed : 21943705, PubMed : 2456340, PubMed : 32887977, PubMed : 7504010, PubMed : 7679507, PubMed : 9862734). May also display spliced peptides resulting from the ligation of two separate proteasomal cleavage products that are not contiguous in the parental protein (PubMed : 27049119).. Allele A*11 : 01 : Presents several immunodominant epitopes derived from HIV-1 gag-pol and HHV-4 EBNA4, containing the peptide motif with Val, Ile, Thr, Leu, Tyr or Phe at position 2 and Lys anchor residue at the C-terminus. Important in the control of HIV-1, EBV and HBV infections (PubMed : 10449296). Presents an immunodominant epitope derived from SARS-CoV-2 N/nucleoprotein (KTFPPTEPK) (PubMed : 32887977).. Allele A*23 : 01 : Interacts with natural killer (NK) cell receptor KIR3DL1 and may contribute to functional maturation of NK cells and self-nonself discrimination during innate immune response.. Allele A*24 : 02 : Presents viral epitopes derived from HIV-1 nef (RYPLTFGWCF), EBV lytic- and latent-cycle antigens BRLF1 (TYPVLEEMF), BMLF1 (DYNFVKQLF) and LMP2 (IYVLVMLVL), SARS-CoV nucleocapsid/N (QFKDNVILL), as well as tumor peptide antigens including PRAME (LYVDSLFFL), all sharing a common signature motif, namely an aromatic residue Tyr or Phe at position 2 and a nonhydrophobic anchor residue Phe, Leu or Iso at the C-terminus (PubMed : 12393434, PubMed : 20844028, PubMed : 24192765, PubMed : 9047241). Interacts with natural killer (NK) cell receptor KIR3DL1 and may contribute to functional maturation of NK cells and self-nonself discrimination during innate immune response (PubMed : 17182537, PubMed : 18502829).. Allele A*26 : 01 : Presents several epitopes derived from HIV-1 gag-pol (EVIPMFSAL, ETKLGKAGY) and env (LVSDGGPNLY), carrying as anchor residues preferentially Glu at position 1, Val or Thr at position 2 and Tyr at the C-terminus.. Allele A*29 : 02 : Presents peptides having a common motif, namely a Glu residue at position 2 and Tyr or Leu anchor residues at the C-terminus.. Allele A*32 : 01 : Interacts with natural killer (NK) cell receptor KIR3DL1 and may contribute to functional maturation of NK cells and self-nonself discrimination during innate immune response.. Allele A*68 : 01 : Presents viral epitopes derived from IAV NP (KTGGPIYKR) and HIV-1 tat (ITKGLGISYGR), having a common signature motif namely, Val or Thr at position 2 and positively charged residues Arg or Lys at the C-terminal anchor.. Allele A*74 : 01 : Presents immunodominant HIV-1 epitopes derived from gag-pol (GQMVHQAISPR, QIYPGIKVR) and rev (RQIHSISER), carrying an aliphatic residue at position 2 and Arg anchor residue at the C-terminus. May contribute to viral load control in chronic HIV-1 infection.
See full target information HLA-A

Additional targets

HLA-B,B2M

Publications (3)

Recent publications for all applications. Explore the full list and refine your search

Oncoimmunology 14:2526444 PubMed40891421

2025

Chronic antigen stimulation in melanoma induces T cell exhaustion and limits efficacy of T cell bispecific therapies.

Applications

Unspecified application

Species

Unspecified reactive species

Idil Hutter-Karakoc,Eleni Maria Varypataki,Aparna Neelakandhan,Simone Lang,Vesna Kramar,Ahmet Varol,Sasha Simons,Marine Richard,Mudita Pincha,Dario Venetz,Johannes Sam,Nicole Joller,Christian Münz,Pablo Umana,Christian Klein,Maria Amann

Life (Basel, Switzerland) 13: PubMed37511945

2023

Circulating Epithelial Cells in Patients with Intraductal Papillary Mucinous Neoplasm of the Pancreas.

Applications

Unspecified application

Species

Unspecified reactive species

Jasmina Kuvendjiska,Felix Müller,Peter Bronsert,Sylvia Timme-Bronsert,Stefan Fichtner-Feigl,Birte Kulemann

Cancer science 112:4444-4456 PubMed34382294

2021

WEE1 inhibitor and ataxia telangiectasia and RAD3-related inhibitor trigger stimulator of interferon gene-dependent immune response and enhance tumor treatment efficacy through programmed death-ligand 1 blockade.

Applications

Unspecified application

Species

Unspecified reactive species

Xue Wu,Xiaoyan Kang,Xiaoxiao Zhang,Wan Xie,Yue Su,Xiaoyu Liu,Lili Guo,Ensong Guo,Fuxia Li,Dianxing Hu,Xu Qin,Yu Fu,Wenju Peng,Jiedong Jia,Changyu Wang
View all publications

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