TSSK2 (NM_053006) Human Recombinant Protein

TSSK2 activity verified in a biochemical assay: TSSK2 (testis-specific serine kinase 2) activity was measured in a homogeneous time-resolved fluorescent (HTRF®) assay. TSSK2 is a serine/threonine kinase that is highly expressed in testis and may be involved in the late stages of spermatogenesis, during the reconstruction of the cytoplasm. Varying concentrations of TSSK2 were added to a reaction mix containing ATP and a biotinylated kinase substrate and the reaction mixture was incubated to allow the protein to phosphorylate the substrate. HTRF detection reagents were then added, and the time-resolved fluorescent signal was measured on a Flexstation 3 microplate reader. The time resolved fluorescent signal is expressed as “delta R” or “ΔR” and is a ratio calculated from the fluorescent emission intensities of the donor and acceptor fluors.

Stable for 1 year at -20°C or below from date of shipment. For maximum recovery of product, centrifuge the original vial after thawing and opening the cap. For long-term storage, aliquot and store at -20°C or below. Avoid repeated freeze-thaw cycles.