CD8 Antibody (OX-8) [Janelia Fluor® 646]
Novus Biologicals, part of Bio-Techne | Catalog # NBP2-12523JF646
Conjugate
Catalog #
Forumulation
Catalog #
Key Product Details
Species Reactivity
Rat
Applications
Block/Neutralize, CyTOF-ready, Flow Cytometry, Immunohistochemistry, Immunohistochemistry-Frozen, Immunohistochemistry-Paraffin, Immunoprecipitation, Western Blot
Label
Janelia Fluor 646
Antibody Source
Monoclonal Mouse IgG1 kappa Clone # OX-8
Concentration
Please see the vial label for concentration. If unlisted please contact technical services.
Product Specifications
Immunogen
CD8 Antibody (OX-8) was developed against high Mw glycoproteins from rat thymocytes
Specificity
CD8 Antibody (OX-8) recognizes the hinge-like membrane-proximal domain of rat CD8a (32-34 kDa; alpha chain of the CD8 antigen).
Clonality
Monoclonal
Host
Mouse
Isotype
IgG1 kappa
Applications for CD8 Antibody (OX-8) [Janelia Fluor® 646]
Application
Recommended Usage
Block/Neutralize
Optimal dilutions of this antibody should be experimentally determined.
CyTOF-ready
Optimal dilutions of this antibody should be experimentally determined.
Flow Cytometry
Optimal dilutions of this antibody should be experimentally determined.
Immunohistochemistry
Optimal dilutions of this antibody should be experimentally determined.
Immunohistochemistry-Frozen
Optimal dilutions of this antibody should be experimentally determined.
Immunohistochemistry-Paraffin
Optimal dilutions of this antibody should be experimentally determined.
Immunoprecipitation
Optimal dilutions of this antibody should be experimentally determined.
Western Blot
Optimal dilutions of this antibody should be experimentally determined.
Application Notes
Optimal dilution of this antibody should be experimentally determined.
Formulation, Preparation, and Storage
Purification
Protein A purified
Formulation
50mM Sodium Borate
Preservative
0.05% Sodium Azide
Concentration
Please see the vial label for concentration. If unlisted please contact technical services.
Shipping
The product is shipped with polar packs. Upon receipt, store it immediately at the temperature recommended below.
Stability & Storage
Store at 4C in the dark.
Background: CD8
Given its role in the immune system, CD8-deficiency in T-cells is a hallmark of many diseases and pathologies (8-10). Specifically, CD8+ T-cell deficiency is prevalent in chronic autoimmune diseases including multiple sclerosis, rheumatoid arthritis, ulcerative colitis, Crohn's disease, type 1 diabetes mellitus, and Graves' disease (8). Furthermore, cancers or chronic infection can lead to CD8 T-cell exhaustion as the continual antigen presentation and inflammatory signals eventually cause the CD8+ T-cells to lose functionality (9, 10). However, animal models and clinical studies have suggested that T-cells are capable of being reinvigorated using inhibitory receptor blockade resulting in better disease outcomes and these exhausted T-cells may be a potential therapeutic target (9, 10).
Alternative names for CD8 includes CD antigen: CD8a, CD8 antigen, alpha polypeptide (p32), CD8a molecule, CD8A, Leu2 T-lymphocyte antigen, LEU2, MAL, OKT8 T-cell antigen, p32, T cell co-receptor, T8 T-cell antigen, T-cell antigen Leu2, T-cell surface glycoprotein CD8 alpha chain, and T-lymphocyte differentiation antigen T8/Leu-2.
References
1. Littman D. R. (1987). The structure of the CD4 and CD8 genes. Annual review of immunology. https://doi.org/10.1146/annurev.iy.05.040187.003021
2. Naeim F. (2008). Chapter 2- Principles of Immunophenotyping. Hematopathology. https://doi.org/10.1016/B978-0-12-370607-2.00002-8.
3. Gao, G. F., & Jakobsen, B. K. (2000). Molecular interactions of coreceptor CD8 and MHC class I: the molecular basis for functional coordination with the T-cell receptor. Immunology today. https://doi.org/10.1016/s0167-5699(00)01750-3
4. UniProt (P01732)
5. UniProt (P01731)
6. Kappes D. J. (2007). CD4 and CD8: hogging all the Lck. Immunity. https://doi.org/10.1016/j.immuni.2007.11.002
7. Gangadharan, D., & Cheroutre, H. (2004). The CD8 isoform CD8alphaalpha is not a functional homologue of the TCR co-receptor CD8alphabeta. Current opinion in immunology. https://doi.org/10.1016/j.coi.2004.03.015
8. Pender M. P. (2012). CD8+ T-Cell Deficiency, Epstein-Barr Virus Infection, Vitamin D Deficiency, and Steps to Autoimmunity: A Unifying Hypothesis. Autoimmune diseases. https://doi.org/10.1155/2012/189096
9. Kurachi M. (2019). CD8+ T cell exhaustion. Seminars in immunopathology. https://doi.org/10.1007/s00281-019-00744-5
10. Hashimoto, M., Kamphorst, A. O., Im, S. J., Kissick, H. T., Pillai, R. N., Ramalingam, S. S., Araki, K., & Ahmed, R. (2018). CD8 T Cell Exhaustion in Chronic Infection and Cancer: Opportunities for Interventions. Annual review of medicine. https://doi.org/10.1146/annurev-med-012017-043208
Alternate Names
CD8, CD8A
Gene Symbol
CD8A
Additional CD8 Products
Product Documents for CD8 Antibody (OX-8) [Janelia Fluor® 646]
Product Specific Notices for CD8 Antibody (OX-8) [Janelia Fluor® 646]
Sold under license from the Howard Hughes Medical Institute, Janelia Research Campus.
This product is for research use only and is not approved for use in humans or in clinical diagnosis. Primary Antibodies are guaranteed for 1 year from date of receipt.
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