Phospho-BTK/ITK (Tyr551, Tyr511) Monoclonal Antibody (M4G3LN), eFluor™ 660, eBioscience™

Product Specific Information

Description: This M4G3LN monoclonal antibody recognizes human and mouse Bruton's tyrosine kinase (also known as BTK, agammaglobulinaemia tyrosine kinase, B-cell progenitor kinase)/interleukin-2-inducible tyrosine kinase (also known as ITK, T-cell-specific kinase, Tyrosine-protein kinase Lyk) when phosphorylated on Y551 and Y511, respectively.

In addition to Src family and SYK family kinases, B cells and T cells express a third family of receptor-proximal kinases called the Tec kinase family. The B cell-specific Tec family kinase is BTK; T cells express ITK as well as Tec and Rlk. Tec family kinases play an indispensable role in activation of phospholipase C and activation of calcium-dependent signaling cascades following antigen receptor triggering. BTK has been implicated in propagating signals downstream of LPS-TLR4 in B cells via signaling through the TLR4 co-receptor RP105/CD180. Mice congenitally lacking BTK or ITK show profound defects in B cell or T cell development and signaling, respectively. People with mutations or deletions in BTK suffer from X-linked agammaglobulinemia and X-linked immunodeficiency.

Specificity of this M4G3LN clone was determined by ELISA, flow cytometry, and western blotting.

Applications Reported: This M4G3LN antibody has been reported for use in immunohistochemical staining, and immunohistochemical staining of formalin-fixed paraffin embedded tissue sections.

Applications Tested: This M4G3LN antibody has been tested by immunohistochemistry of formalin-fixed paraffin embedded human tissue using high pH antigen retrieval and can be used at less than or equal to10 µg/mL. It is recommended that the antibody be carefully titrated for optimal performance in the assay of interest.

eFluor™ 660 is a replacement for Alexa Fluor™ 647. eFluor™ 660 emits at 659 nm and is excited with the red laser (633 nm). Please make sure that your instrument is capable of detecting this fluorochome.

Excitation: 633-647 nm; Emission: 668 nm; Laser: Red Laser.

Filtration: 0.2 µm post-manufacturing filtered.

Target Information

In addition to Src family and SYK family kinases, B cells and T cells express a third family of receptor-proximal kinases called the Tec kinase family. The B cell-specific Tec family kinase is BTK; T cells express ITK as well as Tec and Rlk. Tec family kinases play an indispensable role in activation of phospholipase C and activation of calcium-dependent signaling cascades following antigen receptor triggering. BTK has been implicated in propagating signals downstream of LPS-TLR4 in B cells via signaling through the TLR4 co-receptor RP105/CD180. Mice congenitally lacking BTK or ITK show profound defects in B cell or T cell development and signaling, respectively. People with mutations or deletions in BTK suffer from X-linked agammaglobulinemia and X-linked immunodeficiency.