Recombinant human Complex of CDK19 and Cyclin. Recombinant human CDK1 (cyclin dependent kinase 12), encompassing amino acids 696-1082. This construct contains an N-terminal GST-tag and includes a Thrombin Cleavage Site to facilitate removal of the GST portion. Recombinant human Cyclin K (CCNK), full length, encompassing amino acids 2-580(end). This construct contains an N-terminal GST-tag and includes a Thrombin Cleavage Site to facilitate removal of the GST portion. These two recombinant proteins were co-expressed and affinity purified.
host species: Sf9
Host species: Sf9
Specific activity: 8 pmol/min/ug
Immunogen Region
CDK12: (696-1082); CyclinK: 2-580(end)
Tag
N-terminal GST-tag
Formulation
40 mM Tris-HCl, pH 8.0, 110 mM NaCl, 2.2 mM KCl, 20% glycerol, and 3 mM DTT
Species
Human
Application
Useful for the study of enzyme kinetics, screening inhibitors, and selectivity profiling.
Notes
Assay was run according to CDK12/Cyclin K Kinase Assay Kit (Biohippo #78298) in a Kinase buffer containing 2 mM DTT using 0.4 mg/ml CDK12/CyclinK substrate as a substrate with 10 uM ATP at 30°C for 90 min. The amount of ATP transferred from autophosphorylation as well as substrate phosphorylation was calculated using Kinase-Glo reagent (Promega).
Avoid freeze/thaw cycles.
GenBank
CDK12: NM_016507; Cyclin K: NM_001099402
Mw(kda)
CDK12: 72 kDa; Cyclin K: 90 kDa
Synonyms
Cyclin-dependent kinase 12, Cdc2-related kinase, arginine/serine-rich, CrkRS, Cell division cycle 2-related protein kinase 7, CDC2-related protein kinase 7, Cell division protein kinase 12, hCDK12, CRK7, KIAA0904, Cyclin-K, CCNK, CPR4