| Clone: | OX-8 |
|---|---|
| Isotype: | Mouse IgG1 |
| Specificity: | The mouse monoclonal antibody OX-8 recognizes the hinge-like membrane-proximal domain of rat CD8a (32-34 kDa; alpha chain of the CD8 antigen). |
| Immunogen: | High Mw glycoproteins from rat thymocytes |
| Species Reactivity: | Rat |
| Application: |
Flow Cytometry
Immunoprecipitation
Western Blotting
Immunohistochemistry (paraffin sections)
Immunohistochemistry (frozen sections)
Functional Application
blocking
|
| Purity: | > 95% (by SDS-PAGE) |
| Purification: | Purified from cell culture supernatant by protein-A affinity chromatography. |
| Concentration: | 1 mg/ml |
| Storage Buffer: | Phosphate buffered saline (PBS) with 15 mM sodium azide, approx. pH 7.4 |
| Storage / Stability: | Store at 2-8°C. Do not use after expiration date stamped on vial label. For long-term storage aliquot and store at -20°C. Avoid freeze/thaw cycles. |
| Expiration: | See vial label |
| Lot Number: | See vial label |
| Background: | The CD8a (CD8 alpha) subunit of CD8 T cell coreceptor is expressed in CD8 alpha/beta heterodimers on majority of MHC I-restricted conventional T cells and thymocytes and in CD8 alpha/alpha homodimers on subsets of memory T cells, intraepithelial lymphocytes, NK cells, macrophages and dendritic cells. Regulation of CD8 beta level on T cell surface seems to be an important mechanism to control their effector function. Assembly of CD8 alpha/beta but not alpha/alpha 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. |
| References: |
*Barclay AN: The localization of populations of lymphocytes defined by monoclonal antibodies in rat lymphoid tissues. Immunology. 1981 Apr;42(4):593-600.
*Torres-Nagel N, Kraus E, Brown MH, Tiefenthaler G, Mitnacht R, Williams AF, Hünig T: Differential thymus dependence of rat CD8 isoform expression. Eur J Immunol. 1992 Nov;22(11):2841-8.
*Hirji N, Lin TJ, Befus AD: A novel CD8 molecule expressed by alveolar and peritoneal macrophages stimulates nitric oxide production. J Immunol. 1997 Feb 15;158(4):1833-40.
*Mitnacht R, Bischof A, Torres-Nagel N, Hünig T: Opposite CD4/CD8 lineage decisions of CD4+8+ mouse and rat thymocytes to equivalent triggering signals: correlation with thymic expression of a truncated CD8 alpha chain in mice but not rats. J Immunol. 1998 Jan 15;160(2):700-7.
*Ishida S, Usui T, Yamashiro K, Kaji Y, Amano S, Ogura Y, Hida T, Oguchi Y, Ambati J, Miller JW, Gragoudas ES, Ng YS, D'Amore PA, Shima DT, Adamis AP: VEGF164-mediated inflammation is required for pathological, but not
physiological, ischemia-induced retinal neovascularization. J Exp Med. 2003 Aug 4;198(3):483-9.
*Abe Y, Urakami H, Ostanin D, Zibari G, Hayashida T, Kitagawa Y, Grisham MB: Induction of Foxp3-expressing regulatory T-cells by donor blood transfusion is
required for tolerance to rat liver allografts. PLoS One. 2009 Nov 23;4(11):e7840.
*Katsumata Y, Harigai M, Sugiura T, Kawamoto M, Kawaguchi Y, Matsumoto Y, Kohyama K, Soejima M, Kamatani N, Hara M: Attenuation of experimental autoimmune myositis by blocking ICOS-ICOS ligand interaction. J Immunol. 2007 Sep 15;179(6):3772-9.
*Pino SC, O'Sullivan-Murphy B, Lidstone EA, Yang C, Lipson KL, Jurczyk A, diIorio P, Brehm MA, Mordes JP, Greiner DL, Rossini AA, Bortell R: CHOP mediates endoplasmic reticulum stress-induced apoptosis in Gimap5-deficient T cells. PLoS One. 2009;4(5):e5468.
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