Phospho-Btk (Tyr223) (Clone: B4) rabbit mAb FITC conjugate

Btk is a major node in the B-cell receptor signaling pathway, where it regulates B cell maturation, activation, survival, differentiation, and proliferation. Btk is activated by Src family kinases, including Lyn, which phosphorylates Btk at Tyr551. Upon phosphorylation at this site, Btk is recruited to the plasma membrane where autophosphorylation at Tyr223 occurs. The Btk signaling pathway is a major target of small molecule inhibitors for B-cell lymphoma, autoimmune diseases, and non-Hodgkin's lymphomas. These inhibitors either form a covalent bond at Cys481 in the ATP-binding site or serve as reversible inhibitors that bind the SH3 pocket and stabilize inactive Btk.

Product Specifications

Product Name Alternative

Bruton tyrosine kinase, Tyrosine-protein kinase BTK, Agammaglobulinemia tyrosine kinase, ATK, AGMX1, B-cell progenitor kinase, BPK

Host

Rabbit

Reactivity

Human, Mouse

Immunogen

A synthetic phospho-peptide corresponding to residues surrounding Tyr223 of human phospho Btk

Clonality

Monoclonal

Clone

BtkY223-B4

Applications

FACS

Format

Conjugated

Components

1X PBS, 0.09% NaN3, 0.2% BSA

Storage Conditions

Store at 2-8°C. Avoid repeated freeze and thaw cycles.

Applications Notes

For flow cytometric staining, the suggested use of this reagent is 5 μL per million cells or 5 μL per 100 μL of staining volume. It is recommended that the reagent be titrated for optimal performance for each application.