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CyFlow™ CD4 PE

CyFlow™ CD4 PE
Antigen: CD4
Alternative Name: Leu3a, T4
Clone: MEM-241
Application: Flow cytometry
Format/Fluorochrome: PE
Laser: Blue, Green, Yellow
Target Species: Human
Field of Interest: Immunophenotyping
Species of Origin: Mouse
Regulatory Status: RUO
Clonality: monoclonal
Emission Maximum: 576 nm
Excitation Maximum: 496 nm, 565 nm
Isotype: IgG1
Order number: BQ490560

For Research Use Only
Not for use in diagnostic or therapeutic procedures.

Quantity 100 tests Volume 2 ml Immunogen 2 N-terminal domains of human CD4 fused to... more
CyFlow™ CD4 PE
Quantity100 tests
Volume2 ml
Immunogen2 N-terminal domains of human CD4 fused to human IgG1 Fc
SpecifityThe mouse monoclonal antibody MEM-241 recognizes CD4 antigen, a 55 kDa transmebrane glycoprotein expressed on a subset of T lymphocytes (''helper'' T-cells) and also on monocytes, tissue macrophages and granulocytes.
Background InformationCD4 (T4) is a single chain transmembrane glycoprotein and belongs to immunoglobulin supergene family. In extracellular region there are 4 immunoglobulin-like domains (1 Ig-like V-type and 3 Ig-like C2-type). Transmembrane region forms 25 aa, cytoplasmic tail consists of 38 aa. Domains 1,2 and 4 are stabilized by disulfide bonds. The intracellular domain of CD4 is associated with p56Lck, a Src-like protein tyrosine kinase. It was described that CD4 segregates into specific detergent-resistant T-cell membrane microdomains. Extracellular ligands: MHC class II molecules (binds to CDR2-like region in CD4 domain 1); HIV envelope protein gp120 (binds to CDR2-like region in CD4 domain 1); IL-16 (binds to CD4 domain 3), Human seminal plasma glycoprotein gp17 (binds to CD4 domain 1), L-selectin . Intracellular ligands: p56LckCD4 is a co-receptor involved in immune response (co-receptor activity in binding to MHC class II molecules) and HIV infection (human immunodeficiency virus; CD4 is primary receptor for HIV-1 surface glycoprotein gp120). CD4 regulates T-cell activation, T/B-cell adhesion, T-cell diferentiation, T-cell selection and signal transduction. Defects in antigen presentation (MHC class II) cause dysfunction of CD4+ T-cells and their almost complete absence in patients blood, tissue and organs (SCID immunodeficiency).
UsageThe reagent is designed for Flow Cytometry analysis of human blood cells. Recommended usage is 20·µl reagent·/ 100·µl of whole blood or 10^6 cells in a suspension. The content of a vial (2 ml) is sufficient for 100 tests.
Storage BufferThe reagent is provided in stabilizing phosphate buffered saline (PBS) solution, pH ≈7.4, containing 0.1% (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.

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