ARG62832

anti-CD4 antibody [MEM-115]

anti-CD4 antibody [MEM-115] for Flow cytometry,Functional study,Immunoprecipitation and Human

Developmental Biology antibody; Immune System antibody; Regulatory T cells Study antibody; T-cell infiltration Study antibody; Tumor-infiltrating Lymphocyte Study antibody

Overview

Product Description

Mouse Monoclonal antibody [MEM-115] recognizes CD4

Tested Reactivity Hu
Tested Application FACS, FuncSt, IP
Specificity The clone 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.
HLDA V; WS Code T T-CD04.09
Host Mouse
Clonality Monoclonal
Clone MEM-115
Isotype IgG2a
Target Name CD4
Antigen Species Human
Immunogen Human thymocytes and T lymphocytes.
Conjugation Un-conjugated
Alternate Names CD4mut; CD antigen CD4; T-cell surface glycoprotein CD4; T-cell surface antigen T4/Leu-3

Application Instructions

Application Suggestion
Tested Application Dilution
FACS3 µg/ml
FuncStAssay-dependent
IPAssay-dependent
Application Note Functional studies: The clone MEM-115 blocks binding of HIV gp120 to CD4 molecule and it also strongly inhibits CD4-MHC Class II interactions.
FACS: Although it has not been tested rigorously, following data suggest that the clone 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.
* The dilutions indicate recommended starting dilutions and the optimal dilutions or concentrations should be determined by the scientist.

Properties

Form Liquid
Purification Purified from ascites by protein-A affinity chromatography.
Purity > 95% (by SDS-PAGE)
Buffer PBS (pH 7.4) and 15 mM Sodium azide
Preservative 15 mM Sodium azide
Concentration 1 mg/ml
Storage Instruction For continuous use, store undiluted antibody at 2-8°C for up to a week. For long-term storage, aliquot and store at -20°C or below. Storage in frost free freezers is not recommended. Avoid repeated freeze/thaw cycles. Suggest spin the vial prior to opening. The antibody solution should be gently mixed before use.
Note For laboratory research only, not for drug, diagnostic or other use.

Bioinformation

Database Links

GeneID: 920 Human CD4

Swiss-port # P01730 Human T-cell surface glycoprotein CD4

Gene Symbol CD4
Gene Full Name CD4 molecule
Background CD4 is a membrane glycoprotein of T lymphocytes that interacts with major histocompatibility complex class II antigenes and is also a receptor for the human immunodeficiency virus. This gene is expressed not only in T lymphocytes, but also in B cells, macrophages, and granulocytes. It is also expressed in specific regions of the brain. The protein functions to initiate or augment the early phase of T-cell activation, and may function as an important mediator of indirect neuronal damage in infectious and immune-mediated diseases of the central nervous system. Multiple alternatively spliced transcript variants encoding different isoforms have been identified in this gene. [provided by RefSeq, Aug 2010]
Function CD4 is an integral membrane glycoprotein that plays an essential role in the immune response and serves multiple functions in responses against both external and internal offenses. In T-cells, functions primarily as a coreceptor for MHC class II molecule:peptide complex. The antigens presented by class II peptides are derived from extracellular proteins while class I peptides are derived from cytosolic proteins. Interacts simultaneously with the T-cell receptor (TCR) and the MHC class II presented by antigen presenting cells (APCs). In turn, recruits the Src kinase LCK to the vicinity of the TCR-CD3 complex. LCK then initiates different intracellular signaling pathways by phosphorylating various substrates ultimately leading to lymphokine production, motility, adhesion and activation of T-helper cells. In other cells such as macrophages or NK cells, plays a role in differentiation/activation, cytokine expression and cell migration in a TCR/LCK-independent pathway. Participates in the development of T-helper cells in the thymus and triggers the differentiation of monocytes into functional mature macrophages. [UniProt]
Highlight Related products:
CD4 antibodies; CD4 ELISA Kits; CD4 Duos / Panels; Anti-Mouse IgG secondary antibodies;
Related news:
New antibody panels and duos for Tumor immune microenvironment
Tumor-Infiltrating Lymphocytes (TILs)
Research Area Developmental Biology antibody; Immune System antibody; Regulatory T cells Study antibody; T-cell infiltration Study antibody; Tumor-infiltrating Lymphocyte Study antibody
Calculated MW 51 kDa
PTM Palmitoylation and association with LCK contribute to the enrichment of CD4 in lipid rafts.