Membrane-Bound ATPases in Arthropod Ion-Transporting Tissues

Families of soft-metal-ion-transporting ATPases.

Effects of Low Dose Dioxin on Membrane Bound Ion Dependent ATPases in Mice Kidney

The present communication reports the dose and exposure dependent effects of a dioxin on few ion dependent membrane bound ATPases of mice kidney. Effects of TCDD on the specific activity of few membrane bound ATPases viz., Total ATPase, Na K ATPase, Ca ATPase, Mg ATPase, Ca++, HCO3 ATPase, Mg, HCO3 ATPase were observed. Two basic hypotheses were tested viz., (a) the sublethal in vivo exposure o...

Membrane ion transport in non-excitable tissues.

The facilitated movement of ions across cell membranes can be characterized as occurring through active (ATP-dependent), secondary active (coupled), or passive transport processes. Each of these processes is mediated by a diverse group of membrane proteins. Over the past fifteen years, studies of membrane transport in C. elegans have benefited from the fact that worms are anatomically simple, e...

Effects of low concentrations of a polychlorinated biphenyl, Aroclor 1254 on membrane bound ion dependent ATPases in mice liver.

Aroclor 1254, a polychlorinated biphenyl, is present in the environment in low concentration but references on its toxic effects on liver cell membrane proteins and the mechanism of actions are not abundantly available. Therefore, the present study was undertaken to investigate the low level, sub-acute dose and exposure duration dependent effects of Aroclor 1254 on total, Na+, K+, Ca2+ and Mg(2...

Evolution of Copper Transporting ATPases in Eukaryotic Organisms

Copper is an essential nutrient for most life forms, however in excess it can be harmful. The ATP-driven copper pumps (Copper-ATPases) play critical role in living organisms by maintaining appropriate copper levels in cells and tissues. These evolutionary conserved polytopic membrane proteins are present in all phyla from simplest life forms (bacteria) to highly evolved eukaryotes (Homo sapiens...