Human BRK, also known as PTK6 (GenBank Accession No. NM_005975), 2-451 (end), with N-terminal GST-tag, MW=80 kDa, expressed in Sf9 insect cells via a baculovirus expression system.
Host cell line: Sf9 cells
Specific activity: 88 pmol/min/ug
Background
BRK is a member of the non-receptor tyrosine kinases (PTKs) that contains an amino terminal SH3 and SH2 domain as well as the catalytic domain (1). BRK expression is low or undetectable in normal mammary tissue and benign lesions. However, approximately two-thirds of breast tumors express appreciable levels, and 27% of tumors over express BRK by fivefold or more (2).
Immunogen Region
2-451 (end)
Tag
N-terminal GST-tag
Formulation
50 mM Tris-HCl, pH 7.5, 150 mM NaCl, 0.1 mM EDTA, 0.1 mM EGTA, 0.25 mM DTT, 0.1 mM PMSF, and 25% glycerol.
Species
Human
Application
Useful for the study of enzyme kinetics, screening inhibitors, and selectivity profiling
Notes
Enzyme reaction was conducted in a buffer (25 ul) containing 40 mM Tris-HCl (pH 7.5), 20 mM MgCl2, 100 uM ATP, 0.2 mg/ml poly-(Glu, Tyr), and BRK for 40 min at 30°C. ATP reduction is detected using ADP-Glo Kinase Assay Platform (Promega Corporation, Madison, WI).