Anti-Hu CD28 Purified Low Endotoxin

Anti-Hu CD28 Purified Low Endotoxin

• Background: CD28 is the critical T cell costimulatory receptor which provides to the cell the important second activation signal by binding CD80 and CD86 that are expressed by antigen presenting cells. Besides its costimulation role CD28 functions in preventing T cells from anergic hyporesponsive state or from undergoing premature apoptotic cell death. CD28 is also expressed on human fetal NK cells and some NK cell lines, whereas on murine NK cells the CD28 expression is much broader.
• Specifications: The mouse monoclonal antibody CD28.2 recognizes an extracellular epitope of CD28, a disulfide-linked homodimeric type I glycoprotein (monomer of Mw 44 kDa) which is a critical costimulatory receptor of T cells.
• CAS Number: 9007-83-4
• Certification: RUO
• Host: Mouse
• Species Reactivity: Non-human primates, Human
• Immunogen: DC28.1.3.3 murine T cell hybridoma transfected with human CD28 cDNA
• Target Antigen: CD28
• Isotype: Igg1 κ
• Clone: CD28.2
• Applications: Functional application: T cell costimulation. Flow cytometry: Recommended dilution: 1-12 µg/mL
• Validated Applications: FC, IP, WB, IHC-F, ICC, Functional assays
• Concentration: 1 mg/mL
• Format: Purified Low Endotoxin
• Buffer: Phosphate buffered saline (PBS), pH 7.4
• References & Citations: *Marti F, Krause A, Post NH, Lyddane C, Dupont B, Sadelain M, King PD: Negative-feedback regulation of CD28 costimulation by a novel mitogen-activated protein kinase phosphatase, MKP6. J Immunol. 2001 Jan 1166(1):197-206. , URL: https://www.ncbi.nlm.nih.gov/pubmed/11123293?ordin,*Scharschmidt E, Wegener E, Heissmeyer V, Rao A, Krappmann D: Degradation of Bcl10 induced by T-cell activation negatively regulates NF-kappa B signaling. Mol Cell Biol. 2004 May24(9):3860-73. , URL: https://www.ncbi.nlm.nih.gov/pubmed/15082780?ordin,*Jeong SH, Qiao M, Nascimbeni M, Hu Z, Rehermann B, Murthy K, Liang TJ. Immunization with hepatitis C virus-like particles induces humoral and cellular immune responses in nonhuman primates. J Virol. 2004 Jul78(13):6995-7003., URL: https://www.ncbi.nlm.nih.gov/pubmed/15194776?ordin,*Nunès J, Klasen S, Ragueneau M, Pavon C, Couez D, Mawas C, Bagnasco M, Olive D: CD28 mAbs with distinct binding properties differ in their ability to induce T cell activation: analysis of early and late activation events. Int Immunol. 1993 Mar5(3):311-5., URL: https://www.ncbi.nlm.nih.gov/pubmed/8385476?ordina,*Nunes J, Klasen S, Franco MD, Lipcey C, Mawas C, Bagnasco M, Olive D: Signalling through CD28 T-cell activation pathway involves an inositol phospholipid-specific phospholipase C activity. Biochem J. 1993 Aug 1293 ( Pt 3):835-42., URL: https://www.ncbi.nlm.nih.gov/pubmed/8394695?ordina,*Schlossman, S., et al., Eds. 1995. Leucocyte Typing V. Oxford University Press. New York., URL: ,*Galea-Lauri J, Darling D, Gan SU, Krivochtchapov L, Kuiper M, Gäken J, Souberbielle B, Farzaneh F: Expression of a variant of CD28 on a subpopulation of human NK cells: implications for B7-mediated stimulation of NK cells. J Immunol. 1999 Jul 1163(1):62-70., URL: https://www.ncbi.nlm.nih.gov/pubmed/10384100?ordin,*Tazi A, Moreau J, Bergeron A, Dominique S, Hance AJ, Soler P: Evidence that Langerhans cells in adult pulmonary Langerhans cell histiocytosis are mature dendritic cells: importance of the cytokine microenvironment. J Immunol. 1999 Sep 15163(6):3511-5., URL: https://www.ncbi.nlm.nih.gov/pubmed/10477625?ordin,*Mary C, Coulon F, Poirier N, Dilek N, Martinet B, Blancho G, Vanhove B: Antagonist properties of monoclonal antibodies targeting human CD28: Role of valency and the heavy-chain constant domain. MAbs Jan-Feb 20135(1):47-55., URL: https://pubmed.ncbi.nlm.nih.gov/23221503/,
• Storage Conditions: Store at 2-8°C. Do not freeze.