protein

CD4 Protein, Ferret (HEK293, His)

HY-P72900

5 μg;10 μg;50 μg;100 μg;500 μg

42;70;200;340;950 USD

CD4 Protein, Ferret (HEK293, His)

proteins

HEK293

5 μg;10 μg;50 μg;100 μg;500 μg

42;70;200;340;950 USD

CD4 Protein, an integral membrane glycoprotein, plays a pivotal role in immune responses. In T-cells, it serves as a coreceptor for MHC class II molecules, interacting with the T-cell receptor and initiating intracellular signaling pathways. In macrophages and NK cells, CD4 contributes to differentiation, cytokine expression, and cell migration independently of TCR/LCK. Additionally, CD4 is crucial in T-helper cell development, monocyte differentiation, and acts as the primary receptor for HIV-1, down-regulated by HIV-1 Vpu, and Human Herpesvirus 7/HHV-7. CD4 Protein, Ferret (HEK293, His) is the recombinant CD4 protein, expressed by HEK293 , with C-His labeled tag. The total length of CD4 Protein, Ferret (HEK293, His) is 376 a.a., with molecular weight of ~52 kDa.

Others

CD4 protein, an integral membrane glycoprotein, assumes a crucial role in immune responses, undertaking diverse functions against both external and internal challenges. In T-cells, its primary function is as a coreceptor for the MHC class II molecule:peptide complex, where class II peptides originate from extracellular proteins, while class I peptides are derived from cytosolic proteins. CD4 interacts concurrently with the T-cell receptor (TCR) and the MHC class II presented by antigen-presenting cells (APCs), leading to the recruitment of the Src kinase LCK to the vicinity of the TCR-CD3 complex. Subsequently, LCK initiates various intracellular signaling pathways by phosphorylating diverse substrates, ultimately resulting in lymphokine production, enhanced motility, adhesion, and the activation of T-helper cells. In other cell types such as macrophages or NK cells, CD4 contributes to differentiation/activation, cytokine expression, and cell migration through a TCR/LCK-independent pathway. Additionally, it plays a pivotal role in the development of T-helper cells in the thymus and triggers the differentiation of monocytes into functional mature macrophages. Notably, CD4 acts as the primary receptor for human immunodeficiency virus-1 (HIV-1), with its down-regulation facilitated by HIV-1 Vpu, and it also serves as a receptor for Human Herpes virus 7/HHV-7 [1] [2] [3] .

T-cell surface glycoprotein CD4; T-cell surface antigen T4/Leu-3; CD4

Greater than 95% as determined by reducing SDS-PAGE

Lyophilized from a 0.2 μm filtered solution of PBS, pH 7.4.

Room temperature in continental US; may vary elsewhere.