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Identification of phosphodiesterase cAMP sensitive to calcium and calmodulin ions and its possible role in the process of tumour transformation of plant cells


, : Identification of phosphodiesterase cAMP sensitive to calcium and calmodulin ions and its possible role in the process of tumour transformation of plant cells. Fiziologiya i Biokhimiya Kul' turnykh Rastenii 26(2): 136-141

Interactions between 2 systems of secondary intermediaries, Ca2+-calmodulin and cAMP, in plant cells were studied at the level of a receptor enzyme, cAMP phosphodiesterase (PDE). A protein fraction containing PDE, sensitive to allosteric regulators, a complex of Ca2+-calmodulin and methylxanthines, was obtained. A dependence was demonstrated between Ca ion concn and intensity of the development of crown gall tumours using plant models with Agrobacterium tumefaciens.


Accession: 002863681

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Related references

Yavors'ka, V.K.; Drahovoz, I.V.; Mel'nychuk, Y.P.; Sarnats'ka, V.V.; Hladun, H.O., 1994: Identification of phosphodiesterase cAMP sensitive to calcium and calmodulin ions and its possible role in the process of tumour transformation of the plant cells. Interrelations between two systems of secondary intermediaries Ca-2+-calmoduline and cAMP in the plant cells were studied at the level of "receptor" enzyme-phosphodiesterase (PDE) of cAMP. The protein fraction which contained PDE form se...

Yavorska, V.K.; Dragovoz, I.V., 1999: Identification of calcium and calmodulin sensitive cAMP phosphodiesterase and its possible role in the interaction of adenylate cyclase system with phytohormones. Biologia Plantarum (Prague) 42(SUPPL ): S38

Dragovoz, I.V.; Yavorskaya, V.K.; Mel'nichuk, Yu, P., 1997: Identification of Ca-2+ and calmodulin sensitive cAMP phosphodiesterase (PDE) and its possible role in the interaction of adenylate cyclase system with phytohormones. cAMP PDE sensitive to methylxanthine, Ca-2+ ions and calmoduline and similar to animal PDE has been identificated in 2 days old rye seedings (Secale cereale). The regulatory effect of cytokinins and abscisic acid on rye PDE has been shown in vitro...

Erneux, C.; Van Sande, J.; Miot, F.; Cochaux, P.; Decoster, C.; Dumont, J.E., 1985: A mechanism in the control of intracellular cAMP level: the activation of a calmodulin-sensitive phosphodiesterase by a rise of intracellular free calcium. Molecular and Cellular Endocrinology 43(2-3): 123-134

Epstein P.M.; Moraski S.Jr; Hachisu R., 1987: Identification and characterization of a calcium calmodulin sensitive cyclic nucleotide phosphodiesterase in a human lymphoblastoid cell line. This study examines the pattern and regulatory properties of cyclic nucleotide phosphodiesterases in a human lymphoblastoid B-cell line (RPMI 8392) established from a patient with acute lymphocytic leukaemia. In this cell line, phosphodiesterase a...

Hardman J.G., 1984: Is calmodulin sensitive phosphodiesterase activity regulated by changes in calcium levels in intact cells. Strada, Sd W. J. Thompson (ed.). Advances In Cyclic Nucleotide And Protein Phosphorylation Research, Vol. 16. Cyclic Nucleotide Phosphodiesterases. Xviii 442p. Raven Press: New York, N.y., Usa. Illus. 421-422

Prozialeck W.C.; Wallace T.L.; Weiss B., 1987: Differential inhibition of calmodulin sensitive phosphodiesterase and calcium atpase by chlorpromazine linked calmodulin. Upon irradiation with UV light, chlorpromazine binds irreversibly to calmodulin and inactivates it. To determine whether this chlorpromazine-calmodulin (CPZ-CaM) complex can inhibit the actions of native calmodulin, we examined its effects on the...

Ilien, B.; Landry, Y., 1980: Characterization of a cAMP/cGMP phosphodiesterase sensitive to calmodulin [proceedings. Archives Internationales de Physiologie et de Biochimie 88(1): B32-B33

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