CD4/LEU3
- 产品详情
- 实验流程
Primary Accession | P01730 |
---|---|
Species | Human |
Sequence | Lys26-Trp390 |
Purity | > 95% as determined by Bis-Tris PAGE > 95% as determined by HPLC |
Endotoxin Level | Less than 1EU per µg by the LAL method. |
Biological Activity | Measured by its binding ability in a functional ELISA. Immobilized CD4/LEU3 hFc Chimera, Human at 0.5 µg/ml (100 µl/well) on the plate can bind Biotinylated Anti-CD4 Antibody, hFc Tag. Test result was comparable to standard batch. |
Expression System | HEK293 |
Theoretical Molecular Weight | 67.5 kDa |
Formulation | Lyophilized from a 0.22 µm filtered solution in PBS, 100mM L-arginine(pH 7.4). |
Reconstitution | Centrifuge the tube before opening. Reconstituting to a concentration more than 100 µg/ml is recommended. Dissolve the lyophilized protein in distilled water. |
Storage & Stability | Upon receiving, the product remains stable up to 6 months at -20 °C or below. Upon reconstitution, the product should be stable for 3 months at -80 °C. Avoid repeated freeze-thaw cycles. |
Gene ID | 920 |
---|---|
Other Names | T-cell surface glycoprotein CD4, T-cell surface antigen T4/Leu-3, CD4, CD4 |
Target Background | CD4, also known as L3T4, T4, and W3/25, is an approximately 55 kDa type I transmembrane glycoprotein that is expressed predominantly on thymocytes and a subset of mature T lymphocytes. It is a standard phenotype marker for the identification of T cell populations.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. |
Name | CD4 |
---|---|
Function | 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. |
Cellular Location | Cell membrane; Single-pass type I membrane protein. Note=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 |
Tissue Location | 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 |
Research Areas
For Research Use Only. Not For Use In Diagnostic Procedures.
Application Protocols
Provided below are standard protocols that you may find useful for product applications.

终于等到您。ABCEPTA(百远生物)抗体产品。
点击下方“我要评价 ”按钮提交您的反馈信息,您的反馈和评价是我们最宝贵的财富之一,
我们将在1-3个工作日内处理您的反馈信息。
如有疑问,联系:0512-88856768 tech-china@abcepta.com.
Cat# PVGS1858
Availability: