Description
Product Usage Information
Western Blotting: 1:1000
Storage
Supplied in 136 mM NaCl, 2.6 mM KCI, 12 mM sodium phosphate (pH 7.4) dibasic, 2 mg/mL BSA, and 50% glycerol. Store at -20°C. Do not aliquot the antibody.
Protocol
Available protocols: Western Blotting
Specificity / Sensitivity
HPK1 (E1C3L) Rabbit Monoclonal Antibody (Biotinylated) recognizes endogenous levels of total HPK1 protein.
Species Reactivity: Human
Source / Purification
Monoclonal antibody is produced by immunizing animals with a synthetic peptide corresponding to residues near the amino terminus of human HPK1 protein.
Background
Hematopoietic progenitor kinase 1 (HPK1) is a member of the germinal center kinases that is predominantly expressed in hematopoietic cells. HPK1 is a key component linking T or B cell receptors to SAPK/JNK and IkappaB kinase pathways in lymphocytes (1-3). Through its proline-rich motif, HPK1 associates with multiple SH3 domain-containing adaptor proteins, including GRB2, Nck, Crk, SLP-76, and BLNK. Phosphorylation of Tyr379 by Syk is necessary for HPK1 association with BLNK and SLP-76, as well as for HPK1 activity (4,5). Caspase cleavage of HPK1 also modulates the biological function of HPK1 (3,6,7).
Alternate Names
Hematopoietic progenitor kinase; hematopoietic progenitor kinase 1; HPK1; M4K1; MAP4K1; MAPK/ERK kinase kinase kinase 1; MEK kinase kinase 1; MEKKK 1; Mitogen-activated protein kinase kinase kinase kinase 1
