Product Name:
Btk-pY551
Product Number:
ab-pk552
Target Full Name: Bruton's agammaglobulinemia tyrosine kinase
Target Alias: Agammaglobulinaemia tyrosine kinase; AGMX1; ATK; B cell progenitor kinase; BPK; Bruton agammaglobulinemia tyrosine kinase; EMB; IMD1; XLA; AT; ATK; BPK; XLA; IMD1; AGMX1; PSCTK1; MGC126261; MGC126262; RP1-164F3_2; XLA; ENSG00000010671
Product Type Specific: Protein kinase phosphosite-specific antibody
Antibody Code: PK551
Antibody Target Type: Phosphosite-specific
Antibody Phosphosite: Y551
Protein UniProt: Q06187
Protein SigNET: Q06187
Antibody Type: Polyclonal
Antibody Host Species: Rabbit
Antibody Immunogen Source: Human Btk sequence peptide Cat. No.: PE-04AIX90
Antibody Immunogen Sequence: DDE(pY)TSS(bA)C
Antibody Immunogen Description: Corresponds to amino acid residues D548 to S554; In the protein kinase catalytic domain.
Production Method: Corresponds to amino acid residues D548 to S554; In the protein kinase catalytic domain.
Antibody Modification: Protein kinase phosphosite-specific antibody
Antibody Concentration: 0.5 mg/ml
Storage Buffer: Phosphate buffered saline pH 7.4, 0.05% Thimerasol
Storage Conditions: For long term storage, keep frozen at -40°C or lower. Stock solution can be kept at +4°C for more than 3 months. Avoid repeated freeze-thaw cycles.
Product Use: Western blotting | Antibody microarray
Antibody Dilution Recommended: 2 µg/ml for immunoblotting
Antibody Potency: Medium immunoreactivity of a target-sized protein by Western blotting in Jurkat and HEK-293 cells. Medium immunoreactivity with immunogen peptide on dot blots.
Antibody Species Reactivity: Human
Antibody Positive Control: The observed molecular mass of the processed target protein on SDS-PAGE gels is reported to be around 75-80 kDa.
Antibody Specificity: High
Antibody Cross Reactivity: Two cross-reactive proteins of ~120 and 140 kDa are detected in HEK-293 cells.
Related Product 1: Btk-pY551 blocking peptide
Related Product 2: Btk-pY223+pY225 phosphosite-specific antibody (Cat. No.: AB-PK550)
Scientific Background: BTK is a protein-tyrosine kinase of the TK group and Tec family. It is a non-receptor kinase that is essential for B-cell development, differentiation, and function. In addition, BTK phosphotransferase activity is required for radiation induced apoptosis in immune cells. After B-cell receptor (BCR) activation, BTK translocates to the plasma membrane and is phosphorylated on Y551 catalyzed by the Lyn and Syk proteins, followed by autophosphorylation at Y223. Phosphorylation at Y223 and Y551 increases phosphotransferase activity.Phosphorylation at S180 causes translocation back to the cytoplasm, leading to downstream phosphorylation of PLCG2 at several conserved phosphosites and the stimulation of downstream calcium dependent signalling mechanisms. BTK is thought to act as a scaffold to bring together various intracellular signalling proteins to function in cytokine receptor signalling pathways. In immune cells, BTK is a vital component of the toll-like receptor (TLR) pathway, which is the primary system used to identify pathogens and activate host defence systems.
