Source: Bovine kidney.

Purity: > 90% by SDS-PAGE, apparent Mr ~ 45-kDa.

Supplied: 0.1 μg (~ 2 units) in 50 μl 50 mM Tris-HCl pH 7.0 buffer containing 14 mM β-mercaptoethanol, 1 mM benzamidine, 0.1 mM phenylmethanesulfonyl fluoride, 1 mM EDTA and 50% glycerol.

Activity: ~ 17,000 units/mg with protamine sulfate as substrate. One unit is the amount of cPK that incorporates 1 nmol of phosphate into protamine sulfate per min. Maintain preparations in aliquots at -70° C. Avoid repeated thawing.

More info: Product Datasheet

Related Products: cPK Assay Kit; Protamine Sulfate.