1. Phospholipid transfer proteins: Mechanism of action

   • George M. Helmkamp Jr.

   Mini-Review Pages: 71 - 91

2. On the role of K⁺ on succinic dehydrogenase activity

   • Edmundo Chávez
   • Concepción Bravo
   • David Jay

   Research Articles Pages: 93 - 99

3. Fluorometric evidence for control of the activity of F₁-adenosinetriphosphatase by ligand-induced conformation change

   • Jui H. Wang

   Research Articles Pages: 101 - 111

4. Modulation of the kinetic characteristics of the sarcoplasmic reticulum ATPase by membrane fluidity

   • José A. Teruel
   • Esmerilda G. Delicado
   • Juan C. Gómez-Fernández

   Research Articles Pages: 113 - 122

5. Stimulation of K⁺ flux into mitochondria by phenylarsine oxide

   • Joyce Johnson Diwan
   • Jyoti Srivastava
   • Teresa Haley

   Research Articles Pages: 123 - 134

6. Announcement

   Announcement Pages: 135 - 135