Human Plk1 (GenBank Accession No. NM_005030), full length with C-terminal His-tag, MW=68 kDa, expressed in a Baculovirus infected Sf9 cell expression system.
host species: Sf9 cells
Host species: Sf9 cells
Specific activity: 125 pmole/min/ug
Unit definition: One unit is defined as the amount of enzyme that will phosphorylate 1 nmol of substrate per minute at pH 7.5 and 30°C.
Background
PLK1 is a member of the Polo-Like Kinase family that localize to centrosomes or spindle pole bodies and undergo dramatic subcellular relocation during the cell cycle. Deregulated activities of PLKs often result in abnormalities in centrosome duplication, maturation, and/or microtubule dynamics. PLKs also regulate the function of the Golgi complex. Deregulated expression of human PLK1 is strongly correlated with the development of many types of malignancies, and ectopic expression of PLK1 dominant negative protein leads to rapid cell death.
Immunogen Region
full length
Tag
C-terminal His-tag
Formulation
45 mM Tris-HCl, pH 8.0, 124 mM NaCl, 2.4 mM KCl, 225 mM imidazole, 3 mM DTT and 10% glycerol
Species
Human
Application
Useful for the study of enzyme kinetics, screening inhibitors, and selectivity profiling
Notes
Enzyme reaction is conducted in a buffer containing 50 mM HEPES (pH 7.5), 10 mM MgCl2, 1 mM EGTA, 200 uM ATP, 0.01% Brij-35 and 2 uM substrate (Ser/Thr Peptide 16, Invitrogen) at 30° for 1 hour.
Avoid freeze/thaw cycles.
GenBank
NM_005030
Mw(kda)
68 kDa
Synonyms
STPK13, polo-like kinase 1
Uniprot
P53350
Shipping Temperature
-80°C (dry ice)
Format
Aqueous buffer solution
Storage
At least 6 months at -80°C.
Reference
1. Fabbro, M. et al., Dev. Cell 9 (4), 477-488. (2005). 2. Liu, X., et al., Mol. Cell. Biol. 25, 4993-5010 (2005).