CD8a Antibody
CD8 is a cell surface receptor expressed either as a heterodimer with the beta chain or as a homodimer. A majority of thymocytes and a subpopulation of mature Tcells and NK cells express CD8a. It binds to MHC class 1 and through its association with protein tyrosine kinase p56lck plays a role in Tcell development and activation of mature Tcells. For mature Tcells, CD8 and 4 are mutually exclusive, so antibody to CD8 is generally used in conjunction with antibody to CD4. CD8a antibody is a useful marker for distinguishing helper/inducer T-lymphocytes, and most peripheral Tcell lymphomas are CD4+/CD8-. Anaplastic large cell lymphoma is usually CD4+/CD8-, and in T-lymphoblastic lymphoma/leukemia, they are often co-expressed. It is also found in littoral cell angioma of the spleen.
Product Specifications
CAS Number
9007-83-4
Specifications
Immunohistochemistry (FFPE) : 1-2 µg/mL for 30 min at RT, Immunofluorescence: 1-2 µg/mL
UniProt
P01732
Host
Mouse
Reactivity
Human
Immunogen
Human recombinant protein was used as the immunogen for this CD8a antibody.
Clonality
Monoclonal
Isotype
IgG1 k
Clone
C8/468
Applications
IHC-P, IF
Purity
Protein G affinity chromatography
Format
Purified
Buffer
1X PBS, pH 7.4
Reconstitution
Store the CD8a antibody at 2-8oC (with azide) or aliquot and store at -20oC or colder (without azide).
Limitations
This CD8a antibody is available for research use only.
Storage Conditions
Store the CD8a antibody at 2-8°C (with azide) or aliquot and store at -20°C or colder (without azide) .
Formulation
0.2 mg/mL in 1X PBS with 0.1 mg/mL BSA (US sourced) and 0.05% sodium azide
Location
Cell surface
Image Legend
IHC testing of FFPE human tonsil (20X) stained with CD8a antibody (C8/468) . Note cell surface staining.
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