WB
Western blot analysis of CD8 alpha on different lysates with Rabbit anti-CD8 alpha antibody at 1/2,000 dilution. Lane 1: THP-1 cell lysate, Lane 2: Jurkat cell lysate, Lane 3: PC-3M cell lysate, Lysates/proteins at 20 µg/Lane. Exposure time: 2 minutes; 4-20% SDS-PAGE gel. Proteins were transferred to a PVDF membrane and blocked with 5% NFDM/TBST for 1 hour at room temperature. The primary antibody at 1/2,000 dilution was used in 5% NFDM/TBST at room temperature for 2 hours. Goat Anti-Rabbit IgG - HRP Secondary Antibody at 1:100,000 dilution was used for 1 hour at room temperature.IHC
Immunohistochemical analysis of paraffin-embedded human lymph node tissue with Rabbit anti-CD8 alpha antibody at 1/100 dilution. The section was pre-treated using heat mediated antigen retrieval with Tris-EDTA buffer (pH 9.0) for 20 minutes. The tissues were blocked in 1% BSA for 20 minutes at room temperature, washed with ddH2O and PBS, and then probed with the primary antibody at 1/100 dilution for 1 hour at room temperature. The detection was performed using an HRP conjugated compact polymer system. DAB was used as the chromogen. Tissues were counterstained with hematoxylin and mounted with DPX.IHC
Immunohistochemical analysis of paraffin-embedded human appendix tissue with Rabbit anti-CD8 alpha antibody at 1/100 dilution. The section was pre-treated using heat mediated antigen retrieval with Tris-EDTA buffer (pH 9.0) for 20 minutes. The tissues were blocked in 1% BSA for 20 minutes at room temperature, washed with ddH2O and PBS, and then probed with the primary antibody at 1/100 dilution for 1 hour at room temperature. The detection was performed using an HRP conjugated compact polymer system. DAB was used as the chromogen. Tissues were counterstained with hematoxylin and mounted with DPX.ICC/IF
Immunocytochemistry analysis of THP-1 cells labeling CD8 alpha with Rabbit anti-CD8 alpha antibody at 1/100 dilution. Cells were fixed in 4% paraformaldehyde for 20 minutes at room temperature, permeabilized with 0.1% Triton X-100 in PBS for 5 minutes at room temperature, then blocked with 1% BSA in 10% negative goat serum for 1 hour at room temperature. Cells were then incubated with Rabbit anti-CD8 alpha antibody at 1/100 dilution in 1% BSA in PBST overnight at 4 ℃. Goat Anti-Rabbit IgG H&L (488) was used as the secondary antibody at 1/1,000 dilution. PBS instead of the primary antibody was used as the secondary antibody only control. Nuclear DNA was labelled in blue with DAPI. Beta tubulin (red) was stained at 1/100 dilution overnight at +4℃. Goat Anti-Mouse IgG H&L (594) was used as the secondary antibody at 1/1,000 dilution.FC
Flow cytometric analysis of Jurkat cells labeling CD8 alpha. Cells were fixed and permeabilized. Then stained with the primary antibody (1ug/ml) (red) compared with Rabbit IgG Isotype Control (green). After incubation of the primary antibody at +4℃ for an hour, the cells were stained with a iFluor™ 488 conjugate-Goat anti-Rabbit IgG Secondary antibody at 1/1,000 dilution for 30 minutes at +4℃. Unlabelled sample was used as a control (cells without incubation with primary antibody; black).| Product Name | CD8 alpha Recombinant Rabbit Monoclonal Antibody |
|---|---|
| Antibody Type | Primary Antibodies |
| Product description | The T cell receptor (TCR) is a heterodimer composed of either α and β or γ and δ chains. CD3 chains and the CD4 or CD8 (CD8-α and CD8-β) co-receptors are also required for efficient signal transduction through the TCR. The TCR is expressed on T helper and T cytotoxic cells that can be distinguished by their expression of CD4 and CD8 proteins; T helper cells express CD4 proteins and T cytotoxic cells display CD8 proteins. CD8s are cell surface glycoproteins that exist as two chain complex (αα or αβ) receptors that bind class I MHC molecules presented by the antigen-presenting cell (APC). A primary function of CD8 proteins is to facilitate antigen recognition by the TCR and to strengthen the avidity of the TCR-antigen interactions. An additional role for CD8-expressing T cells may be to maintain low levels of HIV expression. |
| Immunogen | Synthetic peptide within Human CD8 alpha aa 186-235 / 235. |
| Clonality | Monoclonal |
|---|---|
| Isotype | IgG |
| Host Species | Recombinant rabbit |
| Tested Applications | FCICC/IFIHCWB |
| WB:1:2000-1:5000 IHC:1:100-1:200 ICC/IF:1:100-1:200 FC:1:500-1:1000 |
|
| Species Reactivity | Human |
| Concentration | 1mg/ml |
| Purification | Protein A |
| Alternative Names | alpha polypeptide (p32) antibody CD8 antibody CD8 antigen alpha polypeptide antibody CD8 antigen alpha polypeptide (p32) antibody CD8a antibody CD8A antigen antibody CD8A molecule antibody CD8A_HUMAN antibody Leu2 antibody Leu2 T lymphocyte antigen antibody Ly3 antibody LYT3 antibody MAL antibody OKT8 T cell antigen antibody OTTHUMP00000160760 antibody OTTHUMP00000160764 antibody OTTHUMP00000203528 antibody OTTHUMP00000203721 antibody p32 antibody T cell antigen Leu2 antibody T cell co receptor antibody T-cell surface glycoprotein CD8 alpha chain antibody T-lymphocyte differentiation antigen T8/Leu-2 antibody T8 T cell antigen antibody T8/Leu-2 T-lymphocyte differentiation antigen antibody |
|---|---|
| Molecular Weight(MW) | 26 kDa（Observed band size: 35 kDa） |
| Cellular Localization | Cell membrane, Secreted. |
| SwissProt ID | P01732 |
|---|
WB
Western blot analysis of CD8 alpha on different lysates with Rabbit anti-CD8 alpha antibody at 1/2,000 dilution. Lane 1: THP-1 cell lysate, Lane 2: Jurkat cell lysate, Lane 3: PC-3M cell lysate, Lysates/proteins at 20 µg/Lane. Exposure time: 2 minutes; 4-20% SDS-PAGE gel. Proteins were transferred to a PVDF membrane and blocked with 5% NFDM/TBST for 1 hour at room temperature. The primary antibody at 1/2,000 dilution was used in 5% NFDM/TBST at room temperature for 2 hours. Goat Anti-Rabbit IgG - HRP Secondary Antibody at 1:100,000 dilution was used for 1 hour at room temperature.
IHC
Immunohistochemical analysis of paraffin-embedded human lymph node tissue with Rabbit anti-CD8 alpha antibody at 1/100 dilution. The section was pre-treated using heat mediated antigen retrieval with Tris-EDTA buffer (pH 9.0) for 20 minutes. The tissues were blocked in 1% BSA for 20 minutes at room temperature, washed with ddH2O and PBS, and then probed with the primary antibody at 1/100 dilution for 1 hour at room temperature. The detection was performed using an HRP conjugated compact polymer system. DAB was used as the chromogen. Tissues were counterstained with hematoxylin and mounted with DPX.
IHC
Immunohistochemical analysis of paraffin-embedded human appendix tissue with Rabbit anti-CD8 alpha antibody at 1/100 dilution. The section was pre-treated using heat mediated antigen retrieval with Tris-EDTA buffer (pH 9.0) for 20 minutes. The tissues were blocked in 1% BSA for 20 minutes at room temperature, washed with ddH2O and PBS, and then probed with the primary antibody at 1/100 dilution for 1 hour at room temperature. The detection was performed using an HRP conjugated compact polymer system. DAB was used as the chromogen. Tissues were counterstained with hematoxylin and mounted with DPX.
ICC/IF
Immunocytochemistry analysis of THP-1 cells labeling CD8 alpha with Rabbit anti-CD8 alpha antibody at 1/100 dilution. Cells were fixed in 4% paraformaldehyde for 20 minutes at room temperature, permeabilized with 0.1% Triton X-100 in PBS for 5 minutes at room temperature, then blocked with 1% BSA in 10% negative goat serum for 1 hour at room temperature. Cells were then incubated with Rabbit anti-CD8 alpha antibody at 1/100 dilution in 1% BSA in PBST overnight at 4 ℃. Goat Anti-Rabbit IgG H&L (488) was used as the secondary antibody at 1/1,000 dilution. PBS instead of the primary antibody was used as the secondary antibody only control. Nuclear DNA was labelled in blue with DAPI. Beta tubulin (red) was stained at 1/100 dilution overnight at +4℃. Goat Anti-Mouse IgG H&L (594) was used as the secondary antibody at 1/1,000 dilution.
FC
Flow cytometric analysis of Jurkat cells labeling CD8 alpha. Cells were fixed and permeabilized. Then stained with the primary antibody (1ug/ml) (red) compared with Rabbit IgG Isotype Control (green). After incubation of the primary antibody at +4℃ for an hour, the cells were stained with a iFluor™ 488 conjugate-Goat anti-Rabbit IgG Secondary antibody at 1/1,000 dilution for 30 minutes at +4℃. Unlabelled sample was used as a control (cells without incubation with primary antibody; black).| Application Notes | WB:1:2000-1:5000 IHC:1:100-1:200 ICC/IF:1:100-1:200 FC:1:500-1:1000 |
|---|
| Form | Liquid |
|---|---|
| Storage Instructions | Store at +4℃ after thawing. Aliquot store at -20℃ or -80℃. Avoid repeated freeze / thaw cycles. |
| Storage Buffer | 1*TBS (pH7.4), 1%BSA, 40%Glycerol. Preservative: 0.05% Sodium Azide. |
