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Alexa Fluor®488 Mouse Anti-Human CD4
Alexa Fluor®488 Mouse Anti-Human CD4

Immunohistofluorescent analysis of CD4 expression by cells within human tonsil (left panel). A human tonsil cryosection (5 µm) was fixed with BD Cytofix™ Fixation Buffer (Cat. No. 554655), blocked with 5% goat serum and 1% BSA diluted in 1x PBS, and stained with Alexa Fluor® 488 Mouse Anti-Human CD4 antibody (Cat. No. 557695, pseudo-colored red), BD Horizon™ BV421 Mouse Anti-Human CD19 antibody (Cat. No. 562440/562441, pseudo-colored green), and Alexa Fluor® 555 Mouse Anti-Human Ki-67 antibody (Cat. No. 558617, pseudo-colored yellow). The section was then counterstained with DRAQ5 (Cat. No. 564902/564903, pseudo-colored blue). Images were captured on a standard epifluorescence microscope. Original magnification, 20x. Profile of peripheral blood lymphocytes analyzed by flow cytometry (right panel).

Immunohistofluorescent analysis of CD4 expression by cells within human tonsil (left panel). A human tonsil cryosection (5 µm) was fixed with BD Cytofix™ Fixation Buffer (Cat. No. 554655), blocked with 5% goat serum and 1% BSA diluted in 1x PBS, and stained with Alexa Fluor® 488 Mouse Anti-Human CD4 antibody (Cat. No. 557695, pseudo-colored red), BD Horizon™ BV421 Mouse Anti-Human CD19 antibody (Cat. No. 562440/562441, pseudo-colored green), and Alexa Fluor® 555 Mouse Anti-Human Ki-67 antibody (Cat. No. 558617, pseudo-colored yellow). The section was then counterstained with DRAQ5 (Cat. No. 564902/564903, pseudo-colored blue). Images were captured on a standard epifluorescence microscope. Original magnification, 20x. Profile of peripheral blood lymphocytes analyzed by flow cytometry (right panel).

Product Details
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BD Pharmingen™
Human (QC Testing)
Mouse IgG1, κ
Flow cytometry (Routinely Tested), Immunofluorescence (Tested During Development)
5 µl
IV T114; VI 6T-079
920
AB_396804
Aqueous buffered solution containing BSA and ≤0.09% sodium azide.
RUO


Preparation And Storage

Store undiluted at 4°C and protected from prolonged exposure to light. Do not freeze. The monoclonal antibody was purified from tissue culture supernatant or ascites by affinity chromatography. The antibody was conjugated to Alexa Fluor® 488 under optimum conditions, and unreacted Alexa Fluor® 488 was removed.

Product Notices

  1. This reagent has been pre-diluted for use at the recommended Volume per Test. We typically use 1 × 10^6 cells in a 100-µl experimental sample (a test).
  2. An isotype control should be used at the same concentration as the antibody of interest.
  3. Source of all serum proteins is from USDA inspected abattoirs located in the United States.
  4. Caution: Sodium azide yields highly toxic hydrazoic acid under acidic conditions. Dilute azide compounds in running water before discarding to avoid accumulation of potentially explosive deposits in plumbing.
  5. Alexa Fluor® 488 fluorochrome emission is collected at the same instrument settings as for fluorescein isothiocyanate (FITC).
  6. Alexa Fluor® is a registered trademark of Molecular Probes, Inc., Eugene, OR.
  7. The Alexa Fluor®, Pacific Blue™, and Cascade Blue® dye antibody conjugates in this product are sold under license from Molecular Probes, Inc. for research use only, excluding use in combination with microarrays, or as analyte specific reagents. The Alexa Fluor® dyes (except for Alexa Fluor® 430), Pacific Blue™ dye, and Cascade Blue® dye are covered by pending and issued patents.
  8. For fluorochrome spectra and suitable instrument settings, please refer to our Multicolor Flow Cytometry web page at www.bdbiosciences.com/colors.
  9. Please refer to www.bdbiosciences.com/us/s/resources for technical protocols.
557695 Rev. 5
Antibody Details
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RPA-T4

The RPA-T4 monoclonal antibody specifically binds to CD4, a 59 kDa single-chain transmembrane glycoprotein that is expressed on T-helper/inducer cell populations. CD4 is also expressed on thymocyte subsets and at lower levels on monocytes and macrophages. CD4 functions as a co-receptor in MHC class II-restricted antigen-induced T cell activation and as a receptor for human immunodeficiency viruses (HIV). This antibody binds to the D1 domain (CDR1 and CDR3 epitopes) of the CD4 antigen and reacts with approximately 80% of thymocytes and 45% of peripheral blood lymphocytes. RPA-T4 is capable of blocking HIV-1, gp120, and inhibits syncytium formation.

557695 Rev. 5
Format Details
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Alexa Fluor™ 488
Alexa Fluor™ 488 Dye is part of the BD blue family of dyes. This is a small organic fluorochrome with an excitation maximum (Ex Max) at 494-nm and an emission maximum (Em Max) at 517-nm. Alexa Fluor™ 488 is designed to be excited by the Blue laser (488 nm) and detected using an optical filter centered near 520-nm (e.g., a 530/30-nm bandpass filter). Please ensure that your instrument’s configurations (lasers and optical filters) are appropriate for this dye.
Alexa Fluor™ 488
Blue 488 nm
494 nm
517 nm
557695 Rev.5
Citations & References
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Development References (2)

  1. Knapp W. W. Knapp .. et al., ed. Leucocyte typing IV : white cell differentiation antigens. Oxford New York: Oxford University Press; 1989:1-1182.
  2. Schlossman SF. Stuart F. Schlossman .. et al., ed. Leucocyte typing V : white cell differentiation antigens : proceedings of the fifth international workshop and conference held in Boston, USA, 3-7 November, 1993. Oxford: Oxford University Press; 1995.
557695 Rev. 5

Please refer to Support Documents for Quality Certificates


Global - Refer to manufacturer's instructions for use and related User Manuals and Technical data sheets before using this products as described


Comparisons, where applicable, are made against older BD Technology, manual methods or are general performance claims.  Comparisons are not made against non-BD technologies, unless otherwise noted.

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