Energetics of Potassium Ion Transport in Aplysia Gut(Physiology)

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概要

• 論文の詳細を見る

• Basolateral membranes of Aplysia californica foregut epithelia contain an ATP-dependent Na^+/K^+ transporter (Na^+/K^+ pump or Na^+/K^+ -ATPase). This Na^+/K^+ pump accounts for both the intracellular Na^+ electrochemical potential (μ^^-) being less than the extracelluar Na^+ μ^^- and the intracellular K^+ μ^^- being more than the extracellular K^+μ^^-. Also, K^+ channel activity resides in both luminal and basolateral membranes of the Aplysia foregut epithelial cells. Increased activity of the Na^+/K^+ pump, coupled to luminal and basolateral membrane depolarization altered the K^+ transport energetics across the basolateral membrane to a greater extent than the alteration in K^+ transport energetics across the luminal membrane. These results suggest that K^+ transport, either into or out of the Aplysia foregut epithelial cells, is rate-limiting at the basolateral membrane.

• 社団法人日本動物学会の論文
• 2002-06-25

著者

• Gerencser George

  Department of Phvsioloav College of Medicine University of Florida

• Loo Stanley

  Department Of Physiology School Of Medicine University Of Hawaii

• Cornette Kuuleialoha

  Department of Physiology, School of Medicine, University of Hawaii

• Zhang Jianliang

  Department of Medicine, College of Medicine, University of Florida

• Zhang Jianliang

  Department Of Medicine College Of Medicine University Of Florida

関連論文

• Sodium-Sulfate Symport by Aplysia californica Gut(Physiology)
• Energetics of Potassium Ion Transport in Aplysia Gut(Physiology)
• Sodium-Phosphate Symport by Aplysia Californica Gut(Physiology)
• Cl^--ATPases : Novel Primary Active Transporters in Animals
• Inhibition of a Cl^--Transporting P-type ATPase in Aplysia Gut(Physiology)
• Chloride Pumps in Biological Membranes

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