CD8 Antibody [C8/144B]

ProSci
Product Code: PSI-33-278
Product Group: Primary Antibodies
Supplier: ProSci
CodeSizePrice
PSI-33-278-100ug100ug£765.00
Quantity:
Prices exclude any Taxes / VAT

Overview

Host Type: Mouse
Antibody Isotype: IgG1, kappa
Antibody Clonality: Monoclonal
Antibody Clone: C8/144B
Regulatory Status: RUO
Target Species: Human
Applications:
  • Immunofluorescence (IF)
  • Immunohistochemistry (IHC)
Shipping:
blue ice
Storage:
Aliquot and Store at -20C. Avoid freez-thaw cycles.

Images

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IHC testing of FFPE tonsil tissue with CD8 antibody (clone C8/144B)

IHC testing of FFPE tonsil tissue with CD8 antibody (clone C8/144B)

Further Information

Additional Names:
T-cell surface glycoprotein CD8 alpha chain, T-lymphocyte differentiation antigen T8/Leu-2, CD8a, CD8A, MAL
Application Note:
Flow Cytometry: 0.5-1 ug/million cells

Immunofluorescence: 0.5-1 ug/ml

Immunohistology (FFPE): 1-2 ug/ml for 30 minutes at RT (1)

Prediluted format : incubate for 30 min at RT (2)



The concentration stated for each application is a general starting point. Variations in protocols, secondaries and substrates may require the CD8 antibody to be titered up or down for optimal performance.

1. Staining of formalin-fixed tissues requires boiling tissue sections in 10mM citrate buffer, pH 6.0, for 10-20 min followed by cooling at RT for 20 minutes.
2. The prediluted format is supplied in a dropper bottle and is optimized for use in IHC. After epitope retrieval step (if required), drip mAb solution onto the tissue section and incubate at RT for 30 min.

Background:
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.
Buffer:
PBS with 0.1 mg/ml BSA and 0.05% sodium azide
Concentration:
0.2 mg/mL
Conjugate:
Unconjugated
DISCLAIMER:
Optimal dilutions/concentrations should be determined by the end user. The information provided is a guideline for product use. This product is for research use only.
Immunogen:
A 13 amino acid peptide from the C-terminal cytoplasmic domain of the alpha chain was used as immunogen for this CD8 antibody.
NCBI Gene ID #:
925
NCBI Official Name:
CD8a molecule
NCBI Official Symbol:
CD8A
NCBI Organism:
Homo sapiens
Physical State:
Liquid
Purification:
Protein G affinity chromatography
Research Area:
Cancer,Immunology,Signal Transduction
Swissprot #:
P01732
User NOte:
Optimal dilutions for each application to be determined by the researcher