Crystal structure of the sodium-potassium pump

Article Abstract:

The crystal structure of the sodium-potassium pump with two bound rubidium ions is discussed. The carboxy terminus found in the [alpha]-subunit of the pump is found to control the sodium affinity and the membrane potential of the compound.

Physiological aspects, Potassium channels, Chemical properties, Ion pumps

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The structural basis of calcium transport by the calcium pump

Article Abstract:

The crystal structures of the calcium, [Ca.sup.2+]-ATPases are studied to explain the transport of calcium by the calcium pump in human bodies. The release of [Ca.sup.2+] is found to be facilitated by the translocation of the M4 helix.

Biological Product (except Diagnostic) Manufacturing, Nucleic Acid Derivatives, Phosphorylation, Nucleotides, Calcium-binding proteins, Calcium binding proteins

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Crystal structure of the plasma membrane proton pump

Article Abstract:

The technique of X-ray crystallography is employed to explain the crystal structure of the plasma membrane proton pump. The proton pump is shown to have a large cavity, which is normally filled with water.

Technology application, X-ray crystallography, Proton exchange membrane fuel cells

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