Phosphorylation of cottonplant proteins under the action of protein kinase inhibitors and activators

The occurrence of Ca²⁺-, Ca²⁺-phospholipid-, Ca²⁺-calmodulin-, and cAMP-dependent phosphorylation has been shown with the aid of protein kinase activators and inhibitors and by electrophoresis and autoradiography. Specific substrates have been revealed and it has been demonstrated that the pathways of the realization of the action of cAMP-dependent and Ca²⁺-calmodulin-dependent protein kinases may intersect.A. S. Sadykov Institute of Bioorganic Chemistry, Academy of Sciences of the Republic of Uzbekistan, Tashkent, fax 627071. Institute of Nuclear Physics, Academy of Sciences of the Republic of Uzbekistan, Tashkent, fax 442603. Translated from Khimiya Prirodnykh Soedinenii, No. 1, pp. 96–100, January–February, 1994.