Target:CD4
Fields:Viral life cycle - HIV-1;Cytokine-cytokine receptor interaction;Cell adhesion molecules;Antigen processing and presentation;Hematopoietic cell lineage;Th1 and Th2 cell differentiation;Th17 cell differentiation;T cell receptor signaling pathway;Yersinia infection;Human T-cell leukemia virus 1 infection;Human immunodeficiency virus 1 infection;PD-L1 expression and PD-1 checkpoint pathway in cancer;Primary immunodeficiency
Gene Name:CD4
Protein Name:T-cell surface glycoprotein CD4
Human Gene Id:920
Human Swiss Prot No:P01730
Mouse Gene Id:12504
Mouse Swiss Prot No:P06332
Rat Gene Id:24932
Rat Swiss Prot No:P05540
Immunogen:Synthetic Peptide of CD4
Specificity:The antibody detects endogenous CD4 proteins.
Formulation:PBS, pH 7.4, containing 0.5%BSA, 0.02% sodium azide as Preservative and 50% Glycerol.
Source:Monoclonal, Mouse
Dilution:IHC 1:200
Purification:The antibody was affinity-purified from mouse ascites by affinity-chromatography using specific immunogen.
Storage Stability:-15°C to -25°C/1 year(Do not lower than -25°C)
Other Name:CD4;T-cell surface glycoprotein CD4;T-cell surface antigen T4/Leu-3;CD4
Molecular Weight(Da):51kD
Background: This gene encodes 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:function:Accessory protein for MHC class-II antigen/T-cell receptor interaction. May regulate T-cell activation. Induces the aggregation of lipid rafts.,miscellaneous:Primary receptor for HIV-1.,online information:CD4 entry,PTM:Palmitoylation and association with LCK contribute to the enrichment of CD4 in lipid rafts.,similarity:Contains 1 Ig-like V-type (immunoglobulin-like) domain.,similarity:Contains 3 Ig-like C2-type (immunoglobulin-like) domains.,subcellular location:Localizes to lipid rafts. Removed from plasma membrane by HIV-1 Nef protein that increases clathrin-dependent endocytosis of this antigen to target it to lysosomal degradation. Cell surface expression is also down-modulated by HIV-1 Envelope polyprotein gp160 that interacts with, and sequesters CD4 in the endoplasmic reticulum.,subunit:Associates with LCK. Binds to HIV-1 gp120 and to P4HB/PDI and upon HIV-1 binding to t
Subcellular Location:Cell membrane ; Single-pass type I membrane protein . Localizes to lipid rafts (PubMed:12517957, PubMed:9168119). Removed from plasma membrane by HIV-1 Nef protein that increases clathrin-dependent endocytosis of this antigen to target it to lysosomal degradation. Cell surface expression is also down-modulated by HIV-1 Envelope polyprotein gp160 that interacts with, and sequesters CD4 in the endoplasmic reticulum.
Expression:Highly expressed in T-helper cells. The presence of CD4 is a hallmark of T-helper cells which are specialized in the activation and growth of cytotoxic T-cells, regulation of B cells, or activation of phagocytes. CD4 is also present in other immune cells such as macrophages, dendritic cells or NK cells.