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AB20133

Anti-CD8 alpha antibody [14]

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(2 Publications)

Mouse Monoclonal CD8 alpha antibody. Suitable for ELISA, IHC, IP, Flow Cyt and reacts with Human samples. Cited in 2 publications. Immunogen corresponding to Cell preparation containing CD8A protein.

View Alternative Names

CD8a, MAL, CD8A, T-cell surface glycoprotein CD8 alpha chain, T-lymphocyte differentiation antigen T8/Leu-2

Key facts

Host species

Mouse

Clonality

Monoclonal

Clone number

14

Isotype

IgG1

Light chain type

unknown

Carrier free

No

Reacts with

Human

Applications

IP, ELISA, Flow Cyt, IHC

applications

Immunogen

Cell preparation containing CD8A protein. The exact immunogen used to generate this antibody is proprietary information.

P01732

Specificity

Specific to CD8 alpha, ab20133 can be used for the detection of immunoregulatory T cell subset imbalances in autoimmune disorders and immunodeficiency states, categorisation of T cell acute lymphoblastic leukaemia and lymphoblastic lymphoma in conjunction with other antigens and determination of T4/T8 ratios in immune deficiencies, rheumatoid arthritis, multiple sclerosis, etc.

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Reactivity data

{ "title": "Reactivity Data", "filters": { "stats": ["", "Species", "Dilution Info", "Notes"], "tabs": { "all-applications": {"fullname" : "All Applications", "shortname": "All Applications"}, "ELISA" : {"fullname" : "ELISA", "shortname":"ELISA"}, "IHC" : {"fullname" : "Immunohistochemistry", "shortname":"IHC"}, "IP" : {"fullname" : "Immunoprecipitation", "shortname":"IP"}, "FlowCyt" : {"fullname" : "Flow Cytometry", "shortname":"Flow Cyt"} }, "product-promise": { "all": "all", "testedAndGuaranteed": "tested", "guaranteed": "expected", "predicted": "predicted", "notRecommended": "not-recommended" } }, "values": { "Human": { "ELISA-species-checked": "guaranteed", "ELISA-species-dilution-info": "", "ELISA-species-notes": "<p></p>", "IHC-species-checked": "guaranteed", "IHC-species-dilution-info": "", "IHC-species-notes": "<p></p>", "IP-species-checked": "guaranteed", "IP-species-dilution-info": "", "IP-species-notes": "<p></p>", "FlowCyt-species-checked": "guaranteed", "FlowCyt-species-dilution-info": "", "FlowCyt-species-notes": "<p>FACS</p>" } } }
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Properties and storage information

Form
Liquid
Purification technique
Affinity purification Protein A/G
Storage buffer
Preservative: 0.02% Sodium azide Constituents: PBS
Shipped at conditions
Blue Ice
Appropriate short-term storage duration
1-2 weeks
Appropriate short-term storage conditions
+4°C
Appropriate long-term storage conditions
-20°C
Storage information
Avoid freeze / thaw cycle
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Supplementary information

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

CD8 alpha also known as CD8A or CD8 protein is a glycoprotein subunit expressed on the surface of cytotoxic T lymphocytes. It has a mass of approximately 32 kDa. Found on the surface cell membrane CD8 alpha functions primarily in the immune response specifically in the recognition of antigens bound to major histocompatibility complex (MHC) class I molecules. Often scientists use CD8 antibodies for detection and CD8 IHC or immunohistochemistry for localization studies.
Biological function summary

The CD8 alpha protein plays a critical role in T-cell mediated immune responses. It forms a heterodimer with the CD8 beta chain creating the CD8 alpha-beta complex that strengthens T-cell interaction with antigen-presenting cells. CD8 alpha also helps in signaling processes that activate T cells equipping them to destroy infected or malignant cells. Researchers often study CD8 alpha peptides to understand its interactions better.

Pathways

CD8 alpha is integral to the T-cell receptor signaling pathway and the cytotoxic T lymphocyte (CTL) pathway. The T-cell receptor complex which includes the CD8 molecule transmits signals that are important for T-cell activation and function. CD8 interacts with key proteins such as the T-cell receptor (TCR) and MHC class I molecules facilitating targeted responses against pathogens. These pathways highlight CD8 alpha’s role in adaptive immunity.

CD8 alpha is most prominently associated with viral infections and cancer. Conditions like HIV and some forms of leukemia show altered CD8 function highlighting the protein's role in immune surveillance. In HIV infection for instance CD8 T cells reduce in number impairing the immune response. CD8 alpha’s connection to the immune system places it alongside other immune proteins such as CD4 and MHC molecules in the context of immune dysfunction.
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Product protocols

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

The protein expressed by the gene CD8A is an integral membrane glycoprotein crucial for immune responses, operating mainly in T-cells as a coreceptor for MHC class I molecule : peptide complexes. These peptides originate from cytosolic proteins, unlike class II peptides, which are from extracellular proteins. CD8A interacts with the T-cell receptor (TCR) and MHC class I proteins on antigen-presenting cells, recruiting the Src kinase LCK to the TCR-CD3 complex. LCK phosphorylates substrates, triggering signaling pathways that lead to the production of lymphokines, enhanced motility, adhesion, and activation of cytotoxic T-lymphocytes (CTLs), thereby aiding in the recognition and elimination of infected or tumor cells. Additionally, in natural killer (NK) cells, CD8A homodimers on the cell surface provide a survival mechanism for conjugating with and lysing multiple target cells. CD8A homodimers also facilitate the survival and differentiation of activated lymphocytes into memory CD8 T-cells. This supplementary information is collated from multiple sources and compiled automatically.
See full target information CD8A
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Publications (2)

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

PloS one 9:e90387 PubMed24594640

2014

Ex vivo expanded human regulatory T cells delay islet allograft rejection via inhibiting islet-derived monocyte chemoattractant protein-1 production in CD34+ stem cells-reconstituted NOD-scid IL2rγnull mice.

Applications

IHC-P

Species

Unspecified reactive species

Fang Xiao,Liang Ma,Min Zhao,Guocai Huang,Vincenzo Mirenda,Anthony Dorling,Robert Lechler,Giovanna Lombardi

The Journal of clinical investigation 103:97-106 PubMed9884339

1999

A novel leukocyte adhesion deficiency caused by expressed but nonfunctional beta2 integrins Mac-1 and LFA-1.

Applications

Unspecified application

Species

Unspecified reactive species

N Hogg,M P Stewart,S L Scarth,R Newton,J M Shaw,S K Law,N Klein
View all publications
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Product promise

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