AB275946

Alexa Fluor® 700 Anti-CD28 antibody [CD28.2]

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Anti-CD28 antibody [CD28.2] conjugated to Alexa Fluor® 700 - suitable for flow cytometry, and reacts with human samples. Clone [CD28.2] is a mouse monoclonal antibody and one of the most commonly used clones for flow cytometry.

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Flow Cytometry - Alexa Fluor® 700 Anti-CD28 antibody [CD28.2] (AB275946)

Flow Cyt

Unknown

Flow Cytometry - Alexa Fluor® 700 Anti-CD28 antibody [CD28.2] (AB275946)

Flow cytometry surface staining pattern of human peripheral whole blood stained using ab275946 (4 μl reagent / 100 μl of peripheral whole blood).

Flow Cyt

Unknown

Flow Cytometry - Alexa Fluor® 700 Anti-CD28 antibody [CD28.2] (AB275946)

Separation of CD28 positive lymphocytes (red-filled) from CD28 negative lymphocytes (black-dashed) in flow cytometry analysis (surface staining) of human peripheral whole blood stained using ab275946 (4 μl reagent / 100 μl of peripheral whole blood).

주요 정보

Host species

Mouse

Clonality

Monoclonal

Clone number

CD28.2

Isotype

IgG1

Light chain 타입

kappa

Conjugation

Alexa Fluor® 700

Excitation/Emission

Ex: 702nm, Em: 723nm

Carrier free

Reacts with

Human

Applications

Flow Cyt

applications

Immunogen

Cell preparation containing CD28 protein. The exact immunogen used to generate this antibody is proprietary information.

P10747

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Reactivity 정보

{ "title": "Reactivity Data", "filters": { "stats": ["", "Species", "Dilution Info", "Notes"], "tabs": { "all-applications": {"fullname" : "All Applications", "shortname": "All Applications"}, "FlowCyt" : {"fullname" : "Flow Cytometry", "shortname":"Flow Cyt"} }, "product-promise": { "all": "all", "testedAndGuaranteed": "tested", "guaranteed": "expected", "predicted": "predicted", "notRecommended": "not-recommended" } }, "values": { "Human": { "FlowCyt-species-checked": "testedAndGuaranteed", "FlowCyt-species-dilution-info": "", "FlowCyt-species-notes": "<p>4 μl reagent / 100 μl of whole blood or 10<sup>6</sup> cells in a suspension</p>" } } }

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제품 세부 정보

Alexa Fluor® is a registered trademark of Molecular Probes, Inc, a Thermo Fisher Scientific Company. The Alexa Fluor® dye included in this product is provided under an intellectual property license from Life Technologies Corporation. As this product contains the Alexa Fluor® dye, the purchase of this product conveys to the buyer the non-transferable right to use the purchased product and components of the product only in research conducted by the buyer (whether the buyer is an academic or for-profit entity). As this product contains the Alexa Fluor® dye the sale of this product is expressly conditioned on the buyer not using the product or its components, or any materials made using the product or its components, in any activity to generate revenue, which may include, but is not limited to use of the product or its components: in manufacturing; (ii) to provide a service, information, or data in return for payment (iii) for therapeutic, diagnostic or prophylactic purposes; or (iv) for resale, regardless of whether they are sold for use in research. For information on purchasing a license to this product for purposes other than research, contact Life Technologies Corporation, 5781 Van Allen Way, Carlsbad, CA 92008 USA or outlicensing@thermofisher.com.

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특성 및 보관 정보

제형

Liquid

Purification 테크닉

Size-exclusion chromatography

보관 버퍼

pH: 7.4 Preservative: 0.1% Sodium azide Constituents: PBS

배송 시 보관 조건

Blue Ice

적절한 단기 보관 조건

+4°C

적절한 장기 보관 조건

+4°C

보관 정보

Do Not Freeze|Store in the dark

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추가 정보

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

CD28 also known as T-cell-specific surface glycoprotein CD28 or TP44 plays an important role as a co-stimulatory receptor on T cells. This glycoprotein has a molecular mass of about 44 kDa and is located mainly on the cell surface of T cells. CD28 expression also occurs on thymocytes and some B cells. It forms part of the immunoglobulin superfamily featuring in significant antibody interactions. Researchers often use anti-CD28 antibodies for various immunological assays including CD28 ELISA to study its function.

Biological function summary

CD28 co-stimulates T cells after antigen presentation. It enhances T cell proliferation survival and cytokine production. CD28 functions alongside the T cell receptor (TCR) complex mediating signals that promote full T cell activation. This interaction amplifies the immune response forming an important axis of immune system communication. CD28 interacts with its ligands B7-1 (CD80) and B7-2 (CD86) found on antigen-presenting cells (APCs) illustrating its role in immune system dynamics.

Pathways

CD28 is integral to the PI3K/Akt and MAPK/ERK signaling pathways. These pathways conduct signals critical for cellular growth and survival linking CD28 to downstream transcription factors. The interaction with another protein CTLA-4 acts as a regulatory balance for CD28 signaling preventing over-activation of T cells. This balance influences immune homeostasis and tolerance providing a framework for understanding costimulatory and inhibitory signaling.

CD28's role becomes evident in autoimmune diseases and transplant rejection. Abnormal CD28 signaling links to rheumatoid arthritis where inappropriate T cell activation occurs. Similarly CD28 activity contributes to organ transplant rejection by stimulating T cell-mediated responses against transplanted tissues. CTLA-4 through regulatory feedback can modify these effects providing therapeutic target strategies for managing such disorders. Efforts to modulate CD28 activity involve developing therapeutic agents such as anti-CD28 monoclonal antibodies.

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제품 프로토콜

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

Visit the General protocols
Visit the Troubleshooting

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타겟 정보

Receptor that plays a role in T-cell activation, proliferation, survival and the maintenance of immune homeostasis (PubMed : 1650475, PubMed : 7568038). Functions not only as an amplifier of TCR signals but delivers unique signals that control intracellular biochemical events that alter the gene expression program of T-cells (PubMed : 24665965). Stimulation upon engagement of its cognate ligands CD80 or CD86 increases proliferation and expression of various cytokines in particular IL2 production in both CD4(+) and CD8(+) T-cell subsets (PubMed : 12196291, PubMed : 1650475, PubMed : 35397202). Mechanistically, ligation induces recruitment of protein kinase C-theta/PRKCQ and GRB2 leading to NF-kappa-B activation via both PI3K/Akt-dependent and -independent pathways (PubMed : 21964608, PubMed : 24665965, PubMed : 7568038). In conjunction with TCR/CD3 ligation and CD40L costimulation, enhances the production of IL4 and IL10 in T-cells (PubMed : 8617933).. Isoform 3. Enhances CD40L-mediated activation of NF-kappa-B and kinases MAPK8 and PAK2 in T-cells (PubMed : 15067037).

See full target information CD28

대체 명칭 보기

CD28, T-cell-specific surface glycoprotein CD28, TP44

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Product promise

저희는 고품질 시약으로 고객님의 연구를 서포트하고자 최선을 다하고 있으며, 모든 단계에서 함께 하겠습니다. 만약 제품이 기대한 성능을 보이지 않을 경우에도 Product Promise로 보호받으실 수 있습니다.

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Please note: All products are 'FOR RESEARCH USE ONLY. NOT FOR USE IN DIAGNOSTIC OR THERAPEUTIC PROCEDURES'.

For licensing inquiries, please contact partnerships@abcam.com

Alexa Fluor® 700 Anti-CD28 antibody [CD28.2]

Flow Cytometry - Alexa Fluor® 700 Anti-CD28 antibody [CD28.2] (AB275946)

Flow Cytometry - Alexa Fluor® 700 Anti-CD28 antibody [CD28.2] (AB275946)

관련 conjugated 항체와 다양한 조성의 항체 (8)

주요 정보

Host species

Clonality

Clone number

Isotype

Light chain 타입

Conjugation

Excitation/Emission

Carrier free

Reacts with

Applications

Immunogen

보완 제품

Assay Kits

Primary Antibodies

Primary Antibodies

Primary Antibodies

Primary Antibodies

Reactivity 정보

제품 세부 정보

특성 및 보관 정보

제형

Purification 테크닉

보관 버퍼

배송 시 보관 조건

적절한 단기 보관 조건

적절한 장기 보관 조건

보관 정보

추가 정보

Biological function summary

Pathways

제품 프로토콜

타겟 정보

대체 명칭 보기

Product promise