特異性

The mouse monoclonal antibody MEM-87 recognizes CD8 antigen, a cell surface glycoprotein found on most cytotoxic T lymphocytes that mediates efficient cell-cell interactions within the immune system. CD8 is a disulfide-linked dimer and exists as a CD8 α/α homodimer or CD8 α/β heterodimer (each monomer approx. 32-34 kDa).

抗原情報

The CD8 T cell coreceptor (monomer approx. 32-34 kDa) is expressed as α/β heterodimer on majority of MHC I-restricted conventional T cells and thymocytes and as α/α homodimer on subsets of memory T cells, intraepithelial lymphocytes, NK cells and dendritic cells. Regulation of CD8 β level on T cell surface seems to be an important mechanism to control their effector function. Assembly of CD8 α-β but not α-α dimers is connected with formation or localization to the lipid rafts. Recruiting triggered TCR complexes to these membrane microdomains as well as affinity of TCR to MHC I is modulated by CD8, thereby affecting the functional diversity of the TCR signaling.

利用方法

保存方法

Avoid prolonged exposure to light. Store in the dark at 2-8°C. Do not freeze.

安定性情報

Do not use after expiration date stamped on vial label.

レファレンス

• Devine L, Thakral D, Nag S, Dobbins J, Hodsdon ME, Kavathas PB: Mapping the binding site on CD8 beta for MHC class I reveals mutants with enhanced binding. J·Immunol. 2006·Sep·15; 177(6):3930‑8. <·PMID:·16951356·>
• Pang DJ, Hayday AC, Bijlmakers MJ: CD8 Raft localization is induced by its assembly into CD8alpha beta heterodimers, Not CD8alpha alpha homodimers. J·Biol·Chem. 2007·May·4; 282(18):13884‑94. <·PMID:·17341584·>
• van den Berg HA, Wooldridge L, Laugel B, Sewell AK: Coreceptor CD8‑driven modulation of T cell antigen receptor specificity. J·Theor·Biol. 2007·Nov·21; 249(2):395‑408. <·PMID:·17869274·>
• Schlossman SF, Boumsell L, Gilks W, Harlan JM, Kishimoto T, Morimoto C, Ritz J, Shaw S, Silverstein R, Springer T, Tedder T, Todd R (Eds): Leucocyte Typing V. Oxford·University·Press,·Oxford. 1995; <·NLM·ID:·9514353·>
• Supper V, Schiller HB, Paster W, Forster F, Boulègue C, Mitulovic G, Leksa V, Ohradanova-Repic A, Machacek C, Schatzlmaier P, Zlabinger GJ, Stockinger H: Association of CD147 and Calcium Exporter PMCA4 Uncouples IL-2 Expression from Early TCR Signaling. J·Immunol. 2016·Feb·1; 196(3):1387-99. <·PMID:·26729804·>