CD4 Monoclonal Antibody (OKT4 (OKT-4)), Alexa Fluor™ 700, eBioscience™, Invitrogen™

Description

• Description: The OKT4 monoclonal antibody reacts with human CD4, a 59 kDa cell surface glycoprotein expressed by the majority of thymocytes, a subpopulation of mature T cells (T-helper cells) and in low levels on monocytes
• CD4 is a receptor for the human immunodeficiency virus (HIV)
• The OKT4 antibody recognizes a different epitope than the RPA-T4 monoclonal antibody, and these antibodies do not cross-block binding to each other's respective epitopes
• Applications Reported: This OKT4 (OKT-4) antibody has been reported for use in flow cytometric analysis
• Applications Tested: This OKT4 (OKT-4) antibody has been pre-titrated and tested by flow cytometric analysis of normal human peripheral blood cells
• This can be used at 5 μL (0.125 μg) per test
• A test is defined as the amount (μg) of antibody that will stain a cell sample in a final volume of 100 μL
• Cell number should be determined empirically but can range from 10^5 to 10^8 cells/test
• The Alexa Fluor® 700 emits at 723 nm and can be excited with the red laser (633 nm)
• Most instruments will require a 685 LP mirror and 710/20 filter
• Please make sure that your instrument is capable of detecting this fluorochrome
• Excitation: 633-647 nm; Emission: 723 nm; Laser: Red Laser
• Filtration: 0.2 μm post-manufacturing filtered
• The CD4 antigen is involved in the recognition of MHC class II molecules and is a co-receptor for HIV
• CD4 is primarily expressed in a subset of T-lymphocytes, also referred to as T helper cells, but may also be expressed by other cells in the immune system, such as monocytes, macrophages, and dendritic cells
• At the tissue level, CD4 expression may be detected in thymus, lymph nodes, tonsils, and spleen, and also in specific regions of the brain, gut, and other non-lymphoid tissues
• CD4 functions to initiate or augment the early phase of T-cell activation through its association with the T-cell receptor complex and protein tyrosine kinase, Lck
• It may also function as an important mediator of direct neuronal damage in infectious and immune-mediated diseases of the central nervous system
• Multiple alternatively spliced transcripts have been identified in this gene [RefSeq, July 2017].