Electron microscopy of a microsomal fraction ritch in (Na++K+)-ATPase and isolated from kidney cortex. Structural changes accompanying freeze- and DOC-activation and identification of main components.

Adenosine Triphosphatases/analysis Animals Cattle Cell Fractionation Cell Membrane/enzymology Desoxycorticosterone/pharmacology Freezing Histocytochemistry Histological Techniques Hydrolysis Kidney/cytology Magnesium/analysis Microscopy, Electron Microsomes/analysis,drug effects,enzymology Potassium/analysis Proteins/analysis Sodium/analysis Staining and Labeling Time Factors Ultracentrifugation

Proteins Desoxycorticosterone Sodium Adenosine Triphosphatases Magnesium Potassium