互变霉素产品是Tautomycin is a potent protein phosphatase inhibitor that inhibits PP1 completely at 3 nM and PP2 at 30 nM. Acts as a weak inhibitor of PP2B and does not inhibit PP2C. Its cell permeability and unique inhibitory profile makes tautomycin a useful tool for identifying phosphatase subtypes and physiological substrates for PP2 and PP2A.