CD8a Monoclonal Antibody (4SM15), eBioscience
PRODUCT DETAILS
Host: Rat
Isotype: IgG2a, lambda
Clonality: Monoclonal
Clone: 4SM15
Reactivity: Ms
Application: Flow Cytometry
Tested Dilution: 0.25 µg/test
Concentration: 0.5 mg/mL
Storage: 4°C
Formulation: PBS with 0.09% sodium azide; pH 7.2
Purification: Affinity chromatography
Data Sheet: TDS
Specific Information
Description: The 4SM15 monoclonal antibody reacts with the mouse CD8a molecule. CD8a is an approximately 32-34 kDa cell surface receptor expressed either as a heterodimer with the CD8 beta chain (CD8 alpha beta) or as a homodimer (CD8 alpha alpha). A majority of thymocytes and a subpopulation of mature alpha beta TCR T cells express CD8 alpha beta while gamma delta TCR T cells, a subpopulation of intestinal intraepithelial lymphocytes (IELs) and dendritic cells express CD8 alpha alpha. CD8 binds to MHC class I and through its association with protein tyrosine kinase p56lck plays a role in T cell development and activation of mature T cells.
Recent studies have shown the 4SM15 antibody recognizes and binds a non-CD8a epitope in neural tissue. The 4SM15 clone is not recommended for staining of mouse neural tissue. For additional information please contact our technical service ([email protected]). For detection of mouse CD8a in FFPE mouse neural tissue please refer to alternate product Anti-Mouse CD8a Purified (Product # 14-0195).
The 4SM15 monoclonal antibody is not recommended for immunohistochemistry of frozen mouse tissue. For detection of mouse CD8a using immunohistochemistry of frozen tissue please refer to alternate product Anti-Mouse CD8a Purified (Product # 14-0081-82).
Applications Reported: This 4SM15 antibody has been reported for use in flow cytometric analysis, microscopy, and immunohistochemical staining of formalin-fixed paraffin embedded tissue sections.
Applications Tested: This 4SM15 antibody has been tested by immunohistochemistry of formalin-fixed paraffin embedded mouse tissue using low or high pH antigen retrieval and can be used at less than or equal to 5 µg/mL. The 4SM15 antibody has been tested by flow cytometric analysis of mouse splenocytes and can be used at less than or equal to 0.25 µg per test. A test is defined as the amount (µg) of antibody that will stain a cell sample in a final volume of 100 µL. Cell number should be determined empirically but can range from 10^5 to 10^8 cells/test. It is recommended that the antibody be carefully titrated for optimal performance in the assay of interest.
Purity: Greater than 90%, as determined by SDS-PAGE.
Aggregation: Less than 10%, as determined by HPLC.
Filtration: 0.2 µm post-manufacturing filtered.
For Research Use Only. Not for use in diagnostic procedures. Not for resale without express authorization.
Description
PRODUCT DETAILS
Host: Rat
Isotype: IgG2a, lambda
Clonality: Monoclonal
Clone: 4SM15
Reactivity: Ms
Application: Flow Cytometry
Tested Dilution: 0.25 µg/test
Concentration: 0.5 mg/mL
Storage: 4°C
Formulation: PBS with 0.09% sodium azide; pH 7.2
Purification: Affinity chromatography
Data Sheet: TDS
Specific Information
Description: The 4SM15 monoclonal antibody reacts with the mouse CD8a molecule. CD8a is an approximately 32-34 kDa cell surface receptor expressed either as a heterodimer with the CD8 beta chain (CD8 alpha beta) or as a homodimer (CD8 alpha alpha). A majority of thymocytes and a subpopulation of mature alpha beta TCR T cells express CD8 alpha beta while gamma delta TCR T cells, a subpopulation of intestinal intraepithelial lymphocytes (IELs) and dendritic cells express CD8 alpha alpha. CD8 binds to MHC class I and through its association with protein tyrosine kinase p56lck plays a role in T cell development and activation of mature T cells.
Recent studies have shown the 4SM15 antibody recognizes and binds a non-CD8a epitope in neural tissue. The 4SM15 clone is not recommended for staining of mouse neural tissue. For additional information please contact our technical service ([email protected]). For detection of mouse CD8a in FFPE mouse neural tissue please refer to alternate product Anti-Mouse CD8a Purified (Product # 14-0195).
The 4SM15 monoclonal antibody is not recommended for immunohistochemistry of frozen mouse tissue. For detection of mouse CD8a using immunohistochemistry of frozen tissue please refer to alternate product Anti-Mouse CD8a Purified (Product # 14-0081-82).
Applications Reported: This 4SM15 antibody has been reported for use in flow cytometric analysis, microscopy, and immunohistochemical staining of formalin-fixed paraffin embedded tissue sections.
Applications Tested: This 4SM15 antibody has been tested by immunohistochemistry of formalin-fixed paraffin embedded mouse tissue using low or high pH antigen retrieval and can be used at less than or equal to 5 µg/mL. The 4SM15 antibody has been tested by flow cytometric analysis of mouse splenocytes and can be used at less than or equal to 0.25 µg per test. A test is defined as the amount (µg) of antibody that will stain a cell sample in a final volume of 100 µL. Cell number should be determined empirically but can range from 10^5 to 10^8 cells/test. It is recommended that the antibody be carefully titrated for optimal performance in the assay of interest.
Purity: Greater than 90%, as determined by SDS-PAGE.
Aggregation: Less than 10%, as determined by HPLC.
Filtration: 0.2 µm post-manufacturing filtered.
For Research Use Only. Not for use in diagnostic procedures. Not for resale without express authorization.
