CD19 ELISA kits are immunoassay tools for the measurement of the protein CD19 molecule, which is encoded by the CD19 gene in humans. Functionally, this protein is known to function as coreceptor for the B-cell antigen receptor complex (BCR) on B-lymphocytes. The canonical protein structure is reported to have an amino acid sequence of 556 residues and a mass of 61.1 kDa. It is known to be localized in the cell membrane. As many as 2 protein isoforms have been reported. The protein has been noted to be post-translationally phosphorylated and glycosylated. The CD19 gene has been associated with the disease, Immunodeficiency. Other alias names for this target include CVID3, B-lymphocyte antigen CD19, B-lymphocyte surface antigen B4, T-cell surface antigen Leu-12, differentiation antigen CD19, and B4.
The detection range for different CD19 ELISA kits can vary, with some assays measuring target concentrations as low as 31.25 pg/mL and as high as 100 ng/mL. Click on the products below for more detailed ELISA kit information, such as target reactivity and assay sensitivity.