Human Sphingosine kinase 2 (GenBank Accession No.NM_020126), full length with N-terminal His-tag, MW=74 kDa, expressed in a Baculovirus infected Sf9 cell expression system
Host cell line: Sf9 cells
Specific activity: 20 U/ug
Unit definition: A unit of sphingosine kinase activity is defined as the amount of enzyme required to produce 1 pmol of S1P per minute at 37°C.
Immunogen Region
full length
Tag
N-terminal His-tag
Formulation
25 mM Tris-HCl, pH 8.0, 100 mM NaCl, 0.05% Tween-20, 50% glycerol, and 3 mM DTT.
Species
Human
Application
Useful for the study of enzyme kinetics, screening inhibitors, and selectivity profiling
Notes
Sphingosine kinase activity was determined using D-erythro-sphingosine and ATP as substrates. Assay condition: 50 mM HEPES, pH 7.4, 150 mM NaCl, 5 mM MgCl2, 1 mM DTT, 3 uM Na orthovanadate, 0.5 mM ATP, 4 uM D-erythrosphingosine, and 0.75 ug/ml sphingosine kinase 2 at 37°C for 30 min. ATP reduction is detected using Kinase-Glo Luminescent Kinase Assay Platform (Promega Corporation, Madison, WI).
Avoid freeze/thaw cycles.
GenBank
NM_020126
Mw(kda)
74 kDa
Synonyms
SphK2, sphingosine kinase 2, SPK2
Uniprot
P08571
Shipping Temperature
-80°C (dry ice)
Format
Aqueous buffer solution
Storage
At least 6 months at -80°C.
Reference
Okada, et al., J. Biol. Chem. 280: 36318-36325 (2005).Application Reference: Regulation of the hepatitis C virus RNA replicase by endogenous lipid peroxidation (2014)