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Long name
Mouse Monoclonal Antibody against Human CD4, Clone: MEM-115
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Antigen
CD4
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Species reactivity
Human (Homo sapiens)
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Negative species reactivity
at the time of upload there has been no data, please, contact us to obtain most recent information on species reactivity and cross reactivity
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Clonality
Monoclonal Antibody (Mab)
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Clone
MEM-115
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Applications
IP, FUNC, FC
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Immunogen
Human thymocytes and T lymphocytes.
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Format conjugation
azide free; unconjugated
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Specificity
The antibody MEM-115 recognizes an epitope in the D1 domain of 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. It is negative in Western blotting even with non-reduced samples of cell lysates._x000D_ HLDA V; WS Code T T-CD04.09_x000D_ _x000D_
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Research area
CD and Related Antigens (Human)
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Concentration
1 mg/ml
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Storage buffer
Azide free phosphate buffered saline (PBS), approx. pH 7.4; 0.2 μm filter sterilized.
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Shipping and storage
Mouse Monoclonal Antibody against Human CD4, Clone: MEM-115 is transported on blue ice/ice packs and should be stored at temperatures between 1 and 5 degrees Celsius. Do not freeze! Avoid exposing the product to direct light, especially the conjugated antibodies as most conjugates are very sentitive to light.
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Background
CD4 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._x000D_ 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_x000D_ 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._x000D_ 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).
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Purity
> 95% (by SDS-PAGE)
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Purification method
Purified by protein-A affinity chromatography
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References
*Singer II, Scott S, Kawka DW, Chin J, Daugherty BL, DeMartino JA, DiSalvo J, Gould SL, Lineberger JE, Malkowitz L, Miller MD, Mitnaul L, Siciliano SJ, Staruch MJ, Williams HR, Zweerink HJ, Springer MS: CCR5, CXCR4, and CD4 are clustered and closely apposed on microvilli of human_x000D_ macrophages and T cells., *Bosze S, Caccamo N, Majer Z, Mezo G, Dieli F, Hudecz F: In vitro T-cell immunogenicity of oligopeptides derived from the region 92-110 of the 16-kDa protein of Mycobacterium tuberculosis. Biopolymers. 2004;76(6):467-76., *Brdicková N, Brdicka T, Angelisová P, Horváth O, Spicka J, Hilgert I, Paces J, Simeoni L, Kliche S, Merten C, Schraven B, Horejsí V: LIME: a new membrane Raft-associated adaptor protein involved in CD4 and CD8 coreceptor signaling. J Exp Med. 2003 Nov 17;198(10):1453-62., *Leukocyte Typing V., Schlossman S. et al. (Eds.), Oxford University Press (1995).
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Properties
If you buy Antibodies supplied by Exbio they should be stored frozen at - 24°C for long term storage and for short term at + 5°C.
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Description
CD4+ T helper cell marker or cluster differentiator of white blood cells in FACS or flow cytometry. Used offer coupled to magnetic beads. GENTAUR makes custom magnetic bead couplings on 50 and 250 nm beads for certain clones.
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About
Monoclonals of this antigen are available in different clones. Each murine monoclonal anibody has his own affinity specific for the clone. Mouse monoclonal antibodies are purified protein A or G and can be conjugated to FITC for flow cytometry or FACS and can be of different isotypes.
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French translation
anticorps
