Human Sphingosine kinase 2 ( GenBank Accession No.NM_020126), full length with N-terminal His tag, expressed in a Baculovirus infected Sf9 cell expression system.
Specific Activity:
20 U/ug. Sphingosine kinase activity was determined using D-erythrosphingosine and ATP as substrates. A unit of sphingosine kinase activity is defined as the amount of enzyme required to produce 1 pmol of S1P/min.
Assay Buffer:
50mM HEPES, pH 7.4, 150mM NaCl, 5mM MgCl2, 1mM DTT, 3uM Na-orthovanadate, 0.5mM ATP, 4uM D-erythrosphingosine, and 0.75ug/ml sphingosine kinase 2.
Applications:
Useful for the study of enzyme kinetics, screening inhibitors, and selectivity profiling.
Recommended Dilution:
Optimal dilutions to be determined by the researcher.
Storage and Stability:
Aliquot to avoid repeated freezing and thawing and store at -70 degrees C. For maximum recovery of product, centrifuge the original vial after thawing and prior to removing the cap. Aliquots are stable for at least 6 months.
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