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CyFlow™ CD5 Pacific Blue™

CyFlow™ CD5 Pacific Blue™
Alternative Name: Leu-1, T1
Antibody: Yes
Antigen: CD5
Application: Flow cytometry
Clonality: monoclonal
Clone: CRIS1
Emission Maximum: 455 nm
Excitation Maximum: 400 to 410 nm
Field of Interest: Immunophenotyping
Format/Fluorochrome: Pacific Blue™
Isotype: IgG2a
Laser: Violet
Regulatory Status: RUO
Source Species: Mouse
Target Species: Human
Product number: AH799840

For Research Use Only

$290.00 USD*

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Description
HLDA Workshop HLDA I—WS Code T 29 HLDA III—WS Code T 530 Quantity 100 tests Volume... more
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CyFlow™ CD5 Pacific Blue™

HLDA WorkshopHLDA I—WS Code T 29 HLDA III—WS Code T 530
Quantity100 tests
Volume0.4 mL
ImmunogenStimulated human leukocytes
Background InformationCD5 (T1) 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.
UsageThe reagent is designed for Flow Cytometry analysis of human blood cells. Recommended usage is 4·µl reagent·/ 100·µl of whole blood or 10^6 cells in a suspension. The content of a vial (0.4 ml) is sufficient for 100 tests.
Storage BufferThe reagent is provided in stabilizing phosphate buffered saline (PBS) solution, pH ≈7.4, containing 0.09% (w/v) sodium azide.
StorageAvoid prolonged exposure to light. Store in the dark at 2-8°C. Do not freeze.
StabilityDo not use after expiration date stamped on vial label.

Specific References

| McMichael AJ, Beverley PCL, Cobbold S, et al (Eds): Leucocyte Typing III, White Cell Differentiation Antigens. Oxford University Press, Oxford. 1987; 1‑1050. < NLM ID: 8913266 > | Arrizabalaga P, Mirapeix E, Darnell A, Torras A, Revert L: Cellular immunity analysis using monoclonal antibodies in human glomerulonephritis. Nephron. 1989; 53(1):41‑9. < PMID: 2789343 > | Freedman AS, Freeman G, Whitman J, Segil J, Daley J, Levine H, Nadler LM: Expression and regulation of CD5 on in vitro activated human B cells. Eur J Immunol. 1989 May; 19(5):849‑55. < PMID: 2472277 > | Alberola-Ila J, Places L, Cantrell DA, Vives J, Lozano F: Intracellular events involved in CD5‑induced human T cell activation and proliferation. J Immunol. 1992 Mar 1; 148(5):1287‑93. < PMID: 1371522 > | Guarne A, Bravo J, Calvo J, Lozano F, Vives J, Fita I: Conformation of the hypervariable region L3 without the key proline residue. Protein Sci. 1996 Jan; 5(1):167‑9. < PMID: 8771210 > | Raman C: CD5, an important regulator of lymphocyte selection and immune tolerance. Immunol Res. 2002; 26(1‑3):255‑63. < PMID: 12403363 >

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