VOPROSY MEDITSINSKOI KHIMII (ISSN 0042-8809)

Kinetic parameters of anion adenosine triphosphatase of erythrocytes

   
Ivashchenko A.T., Uteulin K.R., Bushneva I.A., Lu T.T.
PubMed Id: 6132493
Year: 1983  Volume: 29  Issue: 1  Pages: 128-130
Effect of anions on kinetic properties of ATPase from rat erythrocyte membranes was studied. The ATPase activity was competitively inhibited by thiocyanate in mixtures containing sulfite. Thiocyanate, chlorine-anion, bicarbonate and sulfite affected noncompetitively the enzymatic activity as compared with Mg2+-ATP, ADP and calcium. Dicyclohexylcarbodiimide inhibited similarly Mg2+- and Mg2+, SO2-(3)-ATPase activities of membranes. Effect of anions on kinetic parameters of anion-dependent ATPases appears to be analogous in erythrocytes and mitochondria; the data obtained corresponded to early proposed hypothesis of the anion effect on ATPases.
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Ivashchenko A.T., Uteulin K.R., Bushneva I.A., Lu T.T. (1983) Voprosy meditsinskoi khimii, 29(1), 128-130.
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