Human CD8 alpha Antibody

Catalog #: MAB1509R Datasheet

Recombinant Monoclonal Antibody

Catalog #	Availability	Size / Price	Qty
MAB1509R-100
MAB1509R-SP

Detection of CD8 alpha in Human Blood Lymphocytes by Flow Cytometry.

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Human CD8 alpha Antibody Summary

Species Reactivity

Human

Specificity

Detects human CD8 alpha in direct ELISAs.

Source

Recombinant Monoclonal Mouse IgG_2B Clone # 37006R

Purification

Protein A or G purified from cell culture supernatant

Immunogen

Mouse myeloma cell line NS0-derived recombinant human CD8 alpha
Ser22-Val198
Accession # NP_741969

Formulation

Lyophilized from a 0.2 μm filtered solution in PBS with Trehalose. *Small pack size (SP) is supplied either lyophilized or as a 0.2 µm filtered solution in PBS.

Label

Unconjugated

Applications

Recommended Concentration

Sample

Flow Cytometry

0.25 µg/10⁶ cells

See below

CyTOF-ready

Ready to be labeled using established conjugation methods. No BSA or other carrier proteins that could interfere with conjugation.

Immunocytochemistry

8-25 µg/mL

See below

Please Note: Optimal dilutions should be determined by each laboratory for each application. General Protocols are available in the Technical Information section on our website.

Scientific Data

Flow Cytometry

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Detection of CD8 alpha in Human Blood Lymphocytes by Flow Cytometry. Human peripheral blood lymphocytes were stained with (A) Mouse Anti-Human CD8 alpha Monoclonal Antibody (Catalog # MAB1509R) or (B) Mouse IgG2B isotype control antibody (Catalog # MAB0041) followed by anti-Mouse IgG PE-conjugated secondary antibody (Catalog # F0102B) and Mouse Anti-Human CD3 epsilon APC-conjugated Monoclonal Antibody (Catalog # FAB100A). View our protocol for Staining Membrane-associated Proteins.

Immunocytochemistry

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CD8 alpha in Human PBMCs. CD8a was detected in live human peripheral blood mononuclear cells (PBMCs) using Mouse Anti-Human CD8a Monoclonal Antibody (Catalog # MAB1509R) at 25 µg/mL for 3 hours at room temperature. Cells were stained using the NorthernLights™ 557-conjugated Anti-Mouse IgG Secondary Antibody (red; Catalog # NL007) and counterstained with DAPI (blue). Specific staining was localized to cell surface. View our protocol for Fluorescent ICC Staining of Non-adherent Cells.

Preparation and Storage

Reconstitution

Reconstitute at 0.5 mg/mL in sterile PBS.

Shipping

Lyophilized product is shipped at ambient temperature. Liquid small pack size (-SP) is shipped with polar packs. Upon receipt, store immediately at the temperature recommended below.

Stability & Storage

Use a manual defrost freezer and avoid repeated freeze-thaw cycles.

12 months from date of receipt, -20 to -70 °C as supplied.
1 month, 2 to 8 °C under sterile conditions after reconstitution.
6 months, -20 to -70 °C under sterile conditions after reconstitution.

Background: CD8

CD8 is a heterodimeric glycoprotein consisting of an alpha and beta chain. It is expressed on cytolytic T cells and functions in conjunction with the T cell receptor in the recognition of MHC/peptide complexes.

Entrez Gene IDs

925 (Human); 12525 (Mouse); 24930 (Rat); 102124337 (Cynomolgus Monkey); 493799 (Feline)

Alternate Names

CD_antigen: CD8a; CD8 antigen, alpha polypeptide (p32); CD8; 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; T-lymphocyte differentiation antigen T8/Leu-2