[Effect of gradients of monovalent cations on active transport of Ca2+ in the sarcoplasmic reticulum and proteoliposomes].
作者信息
Tugaĭ V A, Diadiusha G P, Usatiuk P V, Zemlianaia N N
出版信息
Ukr Biokhim Zh (1978). 1988 Jan-Feb;60(1):69-74.
PMID:3363678
Abstract
Artificially generated K+ gradient from the sarcoplasmic reticulum vesicles enhances the ATP-dependent Ca2+ transport. The effect is not specific for K+, and is observed when K+ is replaced by Na+ or choline. Dissipation of the K+, Na+, choline gradient does not influence the ATP-dependent Ca2+ transport in proteoliposomes from asolectin and purified Ca2+-ATPase. The K gradient in the presence of valinomycin stimulates the ATP-dependent Ca2+ transport in proteoliposomes.
摘要
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