[Effect of gradients of monovalent cations on active transport of Ca2+ in the sarcoplasmic reticulum and proteoliposomes].
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.
Tugaĭ
V A
VA
Diadiusha
G P
GP
Usatiuk
P V
PV
Zemlianaia
N N
NN
D000255:Adenosine Triphosphate / Q000378:metabolism; D000818:Animals; D001693:Biological Transport, Active; D002118:Calcium / Q000378:metabolism*; D002414:Cations, Monovalent / Q000378:metabolism*; D006863:Hydrogen-Ion Concentration; D066298:In Vitro Techniques; D009132:Muscles / Q000378:metabolism; D011510:Proteolipids / Q000378:metabolism*; D011817:Rabbits; D012519:Sarcoplasmic Reticulum / Q000378:metabolism*
D002414:Cations, Monovalent; D011510:Proteolipids; C020485:proteoliposomes; D000255:Adenosine Triphosphate; D002118:Calcium
Vliianie gradientov odnovalentnykh kationov na aktivnyĭ transport Ca2+ v sarkoplazmaticheskom retikulume i proteoliposomakh.