Bruton's tyrosine kinase (or BTK) is a type of kinase protein expressed in B lymphocytes and T cells. BTK contains a PH domain which binds phosphatidylinositol(3,4,5)-trisphosphate (PIP3). After binding to PIP3, BTK is induced to phosphorylate phospholipase C, which in turn hydrolyzes PIP2 into two second messagers, IP3 and DAG, which then modulate the activity of downstream proteins during B-cell signaling. Btk is also found implicated in the primary immunodeficiency disease X-linked agammaglobulinemia(Bruton's agammaglobulinemia). BTK played a key role in B-cell maturation as well as mast cell activation through the high-affinity IgE receptor. Patients with X-linked agammaglobulinemia have normal pre-B cell populations in their bone marrow but these B-cells can not mature and enter the circulation.Immune Checkpoint Immunotherapy Cancer Immunotherapy Targeted Therapy
Product Name:
BTK Kinase Recombinant Protein (RPES1832)
Product Code:
RPES1832
Size:
20µg
Species:
Human
Expressed Host:
Baculovirus-Insect Cells
Synonyms:
AGMX1,AT,ATK,BPK,IMD1,PSCTK1,XLA
Accession:
NP_000052.1
Sequence:
Met 1-Ser 659
Fusion tag:
C-His
Activity:
1. The specific activity was determined to be 115 nmol/min/mg using Poly(Glu,Tyr)4:1 peptide as substrate.2. Measured by its ability to bind human BLNK in a functional ELISA.
Endotoxin:
<1.0 EU per µg as determined by the LAL method.
Protein Construction:
A DNA sequence encoding the human BTK (NP_000052.1) (Met 1-Ser 659) was expressed with a C-terminal polyhistidine tag.
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