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Long name
Mouse Monoclonal Antibody against Rat CD8b, Clone: 341
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Antigen
CD8b (rat)
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Species reactivity
Rat
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Negative species reactivity
at the time of upload there has been no data, please, contact us to obtain most recent information on species reactivity and cross reactivity
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Clonality
Monoclonal Antibody (Mab)
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Clone
341
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Applications
FC, IP, WB, IHC(F), FUNC
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Immunogen
CD8 positive Wistar rat splenic T cell hybridomas
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Format conjugation
PE
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Specificity
The mouse monoclonal antibody 341 (also known as 34.1) recognizes rat CD8b, the 32-34 kDa beta chain of the CD8 coreceptor, expressed on T cell subsets and some other cell types, such as macrophages.
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Research area
CD and Related Antigens & MHC (Rodent)
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Concentration
0.5 mg/ml
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Storage buffer
Phosphate buffered saline (PBS) with 15 mM sodium azide, approx. pH 7.4
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Shipping and storage
Mouse Monoclonal Antibody against Rat CD8b, Clone: 341 is transported on blue ice/ice packs and should be stored at temperatures between 1 and 5 degrees Celsius. Do not freeze! Avoid exposing the product to direct light, especially the conjugated antibodies as most conjugates are very sentitive to light.
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Background
The CD8b (CD8 beta) 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, mast cells, 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.
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Purity
> 95% (by SDS-PAGE)
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Purification method
Purified by affinity chromatography
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References
*Kraus E, Lambracht D, Wonigeit K, Hünig T: Negative regulation of rat natural killer cell activity by major_x000D_ histocompatibility complex class I recognition. Eur J Immunol. 1996 Nov;26(11):2582-6., *Mabarrack NH, Turner NL, Mayrhofer G: Recent thymic origin, differentiation, and turnover of regulatory T cells. J Leukoc Biol. 2008 Nov;84(5):1287-97., *Nohara O, Kulka M, Déry RE, Wills FL, Hirji NS, Gilchrist M, Befus AD: Regulation of CD8 expression in mast cells by exogenous or endogenous nitric oxide. J Immunol. 2001 Nov 15;167(10):5935-9., *Ellerman KE, Like AA: Islet cell membrane antigens activate diabetogenic CD4+ T-cells in the BB/Wor rat. Diabetes. 1999 May;48(5):975-82., *Lin TJ, Hirji N, Nohara O, Stenton GR, Gilchrist M, Befus AD: Mast cells express novel CD8 molecules that selectively modulate mediator secretion. J Immunol. 1998 Dec 1;161(11):6265-72., *Hirji N, Lin TJ, Bissonnette E, Belosevic M, Befus AD: Mechanisms of macrophage stimulation through CD8: macrophage CD8alpha and CD8beta induce nitric oxide production and associated killing of the parasite Leishmania _x000D_ major. J Immunol. 1998 Jun 15;160(12):6004-11., *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., *Kühnlein P, Park JH, Herrmann T, Elbe A, Hünig T: Identification and characterization of rat gamma/delta T lymphocytes in peripheral lymphoid organs, small intestine, and skin with a monoclonal antibody to a constant determinant of the gamma/delta T cell receptor. J Immunol. 1994 Aug 1;153(3):979-86., *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.
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Properties
If you buy Antibodies supplied by Exbio they should be stored frozen at - 24°C for long term storage and for short term at + 5°C.
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About
Monoclonals of this antigen are available in different clones. Each murine monoclonal anibody has his own affinity specific for the clone. Mouse monoclonal antibodies are purified protein A or G and can be conjugated to FITC for flow cytometry or FACS and can be of different isotypes.
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French translation
anticorps
