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Key Documents

SAB4700751

Sigma-Aldrich

Monoclonal Anti-CD28 antibody produced in mouse

clone CD28.2, purified immunoglobulin, buffered aqueous solution

Synonym(s):

Anti-MFASCD28-P

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About This Item

UNSPSC Code:
12352203
NACRES:
NA.41

biological source

mouse

conjugate

unconjugated

antibody form

purified immunoglobulin

antibody product type

primary antibodies

clone

CD28.2, monoclonal

form

buffered aqueous solution

species reactivity

human, nonhuman primates

concentration

1 mg/mL

technique(s)

FUNC: suitable
flow cytometry: suitable
immunoblotting: suitable
immunocytochemistry: suitable
immunohistochemistry: suitable
immunoprecipitation (IP): suitable

isotype

IgG1

NCBI accession no.

UniProt accession no.

shipped in

wet ice

storage temp.

2-8°C

target post-translational modification

unmodified

Gene Information

human ... CD28(940)

General description

Cluster of differentiation 28 (CD 28) is a lymphocyte surface protein. In human chromosome, the gene CD28 is localized on 2q33.2. The antibody CD28.2 reacts with CD28, a disulfide-linked homodimeric type I glycoprotein (monomer of Mw 44 kDa) which is a critical costimulatory receptor of T cells. HLDA V.; WS Code 5T CD28.05.

Immunogen

DC28.1.3.3 murine T cell hybridoma transfected with human CD28 cDNA

Biochem/physiol Actions

Cluster of differentiation 28 (CD28) acts as a costimulatory molecule for T cell activation and proliferation. CD28 might function as a tumor suppressor gene and the polymorphism is related to increased risk of breast cancer. CD28 plays a key role in allogenic responses. The level of CD28 is upregulated in CD4+ lymphocytes during acute graft rejection. Polymorphism in CD28 owing to higher frequency of CD28 molecule has impact on schizophrenia. Mutations in CD28 is associated with T cell lymphoma′s and neoplasm, leading to accelerated tumour growth. CD28 along with phosphatidylinositol 3 kinase (PI3K) regulates diverse biochemical pathways. CD28 signals to T cells and prevents anergy and apoptosis and promotes T cell proliferation and production of interleukin-2.

Features and Benefits

Evaluate our antibodies with complete peace of mind. If the antibody does not perform in your application, we will issue a full credit or replacement antibody. Learn more.

Physical form

Solution in phosphate buffered saline, pH 7.4, with 15 mM sodium azide.

Disclaimer

Unless otherwise stated in our catalog or other company documentation accompanying the product(s), our products are intended for research use only and are not to be used for any other purpose, which includes but is not limited to, unauthorized commercial uses, in vitro diagnostic uses, ex vivo or in vivo therapeutic uses or any type of consumption or application to humans or animals.

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Storage Class Code

10 - Combustible liquids

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable


Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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CD28 biomarker quantification and expression level profiles in CD4+ T-lymphocytes in solid organ transplantation
Boix F, et al.
Transplant Immunology, 42, 9-17 (2017)
Polymorphisms in immune-inflammatory response genes and the risk of deficit schizophrenia
Mak M, et al.
Schizophrenia Research, 193, 359-363 (2018)
A point mutation in CD28 distinguishes proliferative signals from survival signals
Okkenhaug K, et al.
Nature Immunology, 2(4), 325-332 (2001)
The association between CD28 gene rs3116496 polymorphism and breast cancer risk in Chinese women
Yan Y and Zhang X
Bioscience Reports, 37(6), BSR20170884-BSR20170884 (2017)
Use of flow-sorted canine chromosomes in the assignment of canine linkage, radiation hybrid, and syntenic groups to chromosomes: refinement and verification of the comparative chromosome map for dog and human
Sargan D, et al.
Genomics, 69(2), 182-195 (2000)

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