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Mouse Monoclonal to CD5

L17F12 (IgG2a)

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  11-691-C025 purified 0.025 mg yes choose region PDF datasheetHTML datasheet buy
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  1B-691-C025 biotin 0.025 mg yes choose region PDF datasheetHTML datasheet buy
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  1F-691-T025 FITC 25 tests yes choose region PDF datasheetHTML datasheet buy
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  1A-691-T025 APC 25 tests yes choose region PDF datasheetHTML datasheet buy
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  T8-691-T025 PE-Cy™5 25 tests yes choose region PDF datasheetHTML datasheet buy
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  PC-691-T025 PerCP 25 tests yes choose region PDF datasheetHTML datasheet buy
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Background

CD5 antigen (T1; 67 kDa) is a human cell surface T-lymphocyte single-chain transmembrane glycoprotein. CD5 is expressed on all mature T-lymphocytes, most of thymocytes, subset of B-lymphocytes and on many T-cell leukemias and lymphomas. It is a type I membrane glycoprotein whose extracellular region contains three scavenger receptor cysteine-rich (SRCR) domains.
The CD5 is a signal transducing molecule whose cytoplasmic tail is devoid of any intrinsic catalytic activity. CD5 modulates signaling through the antigen-specific receptor complex (TCR and BCR). CD5 crosslinking induces extracellular Ca++ mobilization, tyrosine phosphorylation of intracellular proteins and DAG production. Preliminary evidence shows protein associations with ZAP-70, p56lck, p59fyn, PC-PLC, etc. CD5 may serve as a dual receptor, giving either stimulatory or inhibitory signals depending both on the cell type and development stage. In thymocytes and B1a cells seems to provide inhibitory signals, in peripheral mature T lymhocytes it acts as a costimulatory signal receptor. CD5 is the phenotypic marker of a B cell subpopulation involved in the production of autoreactive antibodies.
Disease relevance: CD5 is a phenotypic marker for some B cell lymphoproliferative disorders (B-CLL, Hairy cell leukemia, etc.). The CD5+ popuation is expanded in some autoimmune disorders (Rheumatoid Arthritis, etc.). Herpes virus infections induce loss of CD5 expression in the expanded CD8+ human T cells.

Specificity

The mouse monoclonal antibody L17F12 reacts with CD5, a 67kDa single-chain transmembrane glycoprotein expressed on mature T lymphocytes, most of thymocytes and B lymphocytes subset (B-1a lymphocytes).

Regulatory Status

Immunogen

Human acute lymphoblastic leukemia (ALL) T cells

Species Reactivity:

  • Human

Negative Species:

Applications:

  • Flow Cytometry
  • Immunoprecipitation
  • Western Blotting
  • Immunocytochemistry
Usage note:
Indicated dilutions are recommended starting points for use of this product. Working concentrations should be determined by the investigator.

Product Specific References

  • *Engleman EG, Warnke R, Fox RI, Dilley J, Benike CJ, Levy R: Studies of a human T lymphocyte antigen recognized by a monoclonal antibody. Proc Natl Acad Sci U S A. 1981 Mar;78(3):1791-5. [Abstract] [Full Text]
  • *Shuster JJ, Falletta JM, Pullen DJ, Crist WM, Humphrey GB, Dowell BL, Wharam MD, Borowitz M: Prognostic factors in childhood T-cell acute lymphoblastic leukemia: a Pediatric Oncology Group study. Blood. 1990 Jan 1;75(1):166-73. [Abstract] [Full Text]
  • *McAlister MS, Davis B, Pfuhl M, Driscoll PC: NMR analysis of the N-terminal SRCR domain of human CD5: engineering of a glycoprotein for superior characteristics in NMR experiments. Protein Eng. 1998 Oct;11(10):847-53. [Abstract] [Full Text]
  • *Gong JZ, Lagoo AS, Peters D, Horvatinovich J, Benz P, Buckley PJ: Value of CD23 determination by flow cytometry in differentiating mantle cell lymphoma from chronic lymphocytic leukemia/small lymphocytic lymphoma. Am J Clin Pathol. 2001 Dec;116(6):893-7. [Abstract] [Full Text]
  • *Dunphy CH, Tang W: The value of CD64 expression in distinguishing acute myeloid leukemia with monocytic differentiation from other subtypes of acute myeloid leukemia: a flow cytometric analysis of 64 cases. Arch Pathol Lab Med. 2007 May;131(5):748-54. [Abstract] [Full Text]
  • For research use only. Not for drug, diagnostic or other use.

    Example Data

    L17F12 PerCP FC


    Fig. 1. Surface staining of CD5 in human peripheral blood cells with anti-CD5 (L17F12) PerCP.

    L17F12 PE-Cy7


    Fig. 2. Surface staining of CD5 in human peripheral blood cells with anti-CD5 (L17F12) PE-CyTM7.

    L17F12 PE


    Fig. 3. Surface staining of CD5 in human peripheral blood cells with anti-CD5 (L17F12) PE.

    L17F12 PE-Cy5


    Fig. 4. Surface staining of CD5 in human peripheral blood cells with anti-CD5 (L17F12) PE-CyTM5.


    L17F12 PC55


    Fig. 5. Surface staining of CD5 in human peripheral blood cells with anti-CD5 (L17F12) PerCP-CyTM5.5.


    L17F12 APC


    Fig. 6. Surface staining of CD5 in human peripheral blood cells with anti-CD5 (L17F12) APC.


    1B-691


    Fig. 7. Surface staining of CD5 in human peripheral blood cells with anti-CD5 (L17F12) biotin.

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