Human hematopoietic progenitor kinase 1 (HPK1) also known as mitogen activated protein kinase kinase kinase kinase 1 (MAP4K1), GenBank Accession No. NM_007181, a.a. 1-346, with N-terminal GST tag, MW = 65 kDa. HPK1 is expressed in Sf9 insect cells via a baculovirus expression system.
Host cell line: Sf9 cells
Specific activity: >= 100 pmol/min/ug
Immunogen Region
1-346
Tag
N-terminal GST tag
Formulation
50 mM Tris-HCl, pH 7.5, 150 mM NaCl, 10 mM glutatione, 0.1 mM EDTA, 0.25 mM DTT, 0.1 mM PMSF, 25% glycerol
Species
Human
Application
Useful for the study of enzyme kinetics, screening inhibitors, and selectivity profiling
Notes
10 ul of varying concentrations of HPK1 was mixed with 5 ul of 1 mg/ml MBP protein and 5 ul of water. Reaction was initiated with 5 ul of 250 uM (33P)-ATP in 25 mM MOPS, pH7.2, 12.5 mM beta-glycerolphosphate, 25 mM MgCl2, 5 mM EGTA, 2 mM EDTA and 0.25 mM DTT and incubated at 30°C for 15 min. Reaction was terminated by spotting 20 ul of reaction solution onto pre-cut strips of P81 paper and reading in the presence of scintillation fluid and a scintillation counter.
Avoidfreeze/thaw cycles. Storing diluted enzymeis not recommended, if necessary, usecarrier protein (BSA 0.1 - 0.5%).