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Cyclic AMP Increase the Na+ Permeability of the Avian Erythrocyte Membrane by a Process Which Does Not Involve Protein Phosphorylation

Overview
Publisher Springer
Specialty Biochemistry
Date 1978 Jun 28
PMID 209312
Citations 1
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Abstract

Preparations of avian erythrocyte plasma membranes have been made which are in the form of sealed vesicles. Using these preparations the permeability of the membranes to N+, K+, Mg2+ and Ca2+ was measured. Monobutyryl cyclic AMP and cyclic AMP increased the permeability to Na+ and Ca+ under conditions where no protein phosphorylation could occur. The only effect of phosphorylation of membrane proteins was to reduce Ca+ permeability. It is thus concluded that cyclic AMP increases Na+ permeability in the avian erythroycte by a direct effect which does not involve protein phosphorylation.

References
1.
Rudolph S, Greengard P . Regulation of protein phosphorylation and membrane permeability by beta-adrenergic agents and cyclic adenosine 3':5'-monophosphate in the avian erythrocyte. J Biol Chem. 1974; 249(17):5684-7. View

2.
Rodnight R, HEMS D, Lavin B . Phosphate binding by cerebral microsomes in relation to adenosine-triphosphatase activity. Biochem J. 1966; 101(2):502-15. PMC: 1270134. DOI: 10.1042/bj1010502. View

3.
Weller M, Virmaux N, Mandel P . Role of light and rhodopsin phosphorylation in control of permeability of retinal rod outer segment disks to Ca2plus. Nature. 1975; 256(5512):68-70. DOI: 10.1038/256068a0. View

4.
DeLorenzo R, Walton K, Curran P, Greengard P . Regulation of phosphorylation of a specific protein in toad-bladder membrane by antidiuretic hormone and cyclic AMP, and its possible relationship to membrane permeability changes. Proc Natl Acad Sci U S A. 1973; 70(3):880-4. PMC: 433380. DOI: 10.1073/pnas.70.3.880. View

5.
Glynn I, Chappell J . A simple method for the preparation of 32-P-labelled adenosine triphosphate of high specific activity. Biochem J. 1964; 90(1):147-9. PMC: 1202534. DOI: 10.1042/bj0900147. View