The CD4, clone S3.5, Pacific Blue™ conjugate is a monoclonal mouse antibody that recognizes the CD4 antigen also known as T4 and L3T4. Our Pacific Blue™ dye is optimally excited by the violet laser and conjugates of this dye are strongly fluorescent even at neutral pH. Pacific Blue™ and Pacific Orange™ dye conjugates can be simultaneously excited at 405 nm and emit at 455 nm and 551 nm, respectively, facilitating two-color analysis.


Specificity for CD4
This antibody recognizes the CD4 antigen also known as T4 and L3T4. CD4 serves as a co-receptor during T-cell activation through the binding of MHC Class II molecules. CD4 is also the receptor for HIV. CD4 is expressed on helper T cells, thymocyte subsets, and to a lesser extent on peripheral blood monocytes.

Research use only For Research Use Only. Not intended for human or animal therapeutic or diagnostic use.

Related Links
Use the primary antibody selector tool to see the full list of CD4 antibodies.
You can get additional information about violet laser reagents in flow cytometry and use the Spectraviewer to help you plan your experiments. Additional general information about Life Technologies flow cytometry products and support is also available.