Mouse CD19 (His Tag) recombinant protein

Mouse CD19 (His Tag) recombinant protein

• DataSheet
• Material Safety Data Sheets (MSDS)

The cluster of differentiation (CD) system is commonly used as cell markers in immunophynotyping. Different kinds of cells in the immune system can be identified through the surface CD molecules which associating with the immune function of the cell. There are more than 320 CD unique clusters and subclusters have been identified. Some of the CD molecules serve as receptors or ligands important to the cell through initiating a signal cascade which then alter the behavior of the cell. Some CD proteins do not take part in cell signal process but have other functions such as cell adhesion. Cluster of differentiation 19 (CD19) is a member of CD system. CD19 is a cell surface molecule that assembles with the antigen receptor of B-cells. This results in a descent in threshold for antigen receptor-dependent stimulation. A simplified view holds that the ability of B-cells to respond to the various antigens in a specific and sensitive manner is achieved in the presence of low-affinity antigen receptors. CD19 primarily acts as a B-cell coreceptor in conjunction with CD21 and CD81. The formation of the receptor complex is induced by antigen and CD19, induced by exogenous antigen, has been found cytoplasmic tail phosphorylated and bind to sIg.

AW495831; CD19; CVID3; B4; MGC12802

Q3TQG5

Human Cells

A DNA sequence encoding the extracellular domain of mouse CD19 (NP_033974.2) (Met1-Gly287) was expressed, with a polyhistidine tag at the C-terminus.

Mouse

The recombinant mouse CD19 consists of 282 amino acids and has a predicted molecular mass of 31 kDa.

> 90 % as determined by SDS-PAGE

Measured by its ability to bind with human CD9-His(Cat:502694) in a functional ELISA.