CD4 antibody

Catalog No. ABIN125679

Cited in 3+ publications. The Mouse Monoclonal anti-CD4 antibody (Clone MEM-115) (ABIN125679) specifically detects CD4 in FACS, IP and Func. The antibody is reactive with Human samples.

Quick Overview for CD4 antibody (ABIN125679)

Target: CD4

Reactivity: Human

Host: Mouse

Clonality: Monoclonal

Conjugate: This CD4 antibody is un-conjugated

Application: Flow Cytometry (FACS), Immunoprecipitation (IP), Functional Studies (Func)

Clone: MEM-115

Product Details anti-CD4 Antibody

Purpose: Anti-Hu CD4 Purified Azide Free

Specificity: The antibody MEM-115 recognizes an extracellular 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.

Cross-Reactivity (Details): Human

Purification: Purified by protein-A affinity chromatography.

Purity: > 95 % (by SDS-PAGE)

Immunogen: Human thymocytes and T lymphocytes.

Isotype: IgG2a

Application Details

Application Notes: Functional application: The antibody MEM-115 blocks binding of HIV gp120 to CD4 Molecule and it also strongly inhibits CD4-MHC Class II interactions.
Immunoprecipitation: Excellent.
Flow cytometry: Recommended dilution: 3 μg/mL. Although it has not been tested rigorously, following data suggest that the antibody MEM-115 is a low-affinity antibody: its binding to T cells increases at elevated temperature, monovalent Fab fragments essentially do not bind to T cells.

Restrictions: For Research Use only

Handling

Concentration: 1 mg/mL

Buffer: Phosphate buffered saline (PBS), pH 7.4

Preservative: Azide free

Handling Advice: Do not freeze.

Storage: 4 °C

Storage Comment: Store at 2-8°C. Do not freeze.

References for anti-CD4 antibody (ABIN125679)

Bosze, Caccamo, Majer, Mezo, Dieli, Hudecz: "In vitro T-cell immunogenicity of oligopeptides derived from the region 92-110 of the 16-kDa protein of Mycobacterium tuberculosis." in: Biopolymers, Vol. 76, Issue 6, pp. 467-76, (2004) (PubMed).

Brdicková, Brdicka, Angelisová, Horváth, Spicka, Hilgert, Paces, Simeoni, Kliche, Merten, Schraven, Horejsí: "LIME: a new membrane Raft-associated adaptor protein involved in CD4 and CD8 coreceptor signaling." in: The Journal of experimental medicine, Vol. 198, Issue 10, pp. 1453-62, (2003) (PubMed).

Singer, Scott, Kawka, Chin, Daugherty, DeMartino, DiSalvo, Gould, Lineberger, Malkowitz, Miller, Mitnaul, Siciliano, Staruch, Williams, Zweerink, Springer: "CCR5, CXCR4, and CD4 are clustered and closely apposed on microvilli of human macrophages and T cells." in: Journal of virology, Vol. 75, Issue 8, pp. 3779-90, (2001) (PubMed).

Target Details for CD4

Target: CD4

Alternative Name: CD4

Background: CD4 Molecule,CD4 (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).,T4/Leu-3, L3T4

Gene ID: 920

UniProt: P01730

Pathways: TCR Signaling, Maintenance of Protein Location, CXCR4-mediated Signaling Events