A SODIUM-PUMP IN THE PLASMA-MEMBRANE OF THE MARINE ALGA HETEROSIGMA-AKASHIWO

Authors
SHONO M HARA Y WADA M FUJII T
Citation
M. Shono et al., A SODIUM-PUMP IN THE PLASMA-MEMBRANE OF THE MARINE ALGA HETEROSIGMA-AKASHIWO, Plant and Cell Physiology, 37(3), 1996, pp. 385-388
Citations number
16
Categorie Soggetti
Plant Sciences
Journal title
Plant and Cell Physiology → ACNP
ISSN journal
00320781
Volume
37
Issue
3
Year of publication
1996
Pages
385 - 388
Database
ISI
SICI code
0032-0781(1996)37:3<385:ASITPO>2.0.ZU;2-T
Abstract
ATP-dependent transport of Na-22(+) into liposomes reconstituted from plasma membrane proteins of Heterosigma akashiwo was examined. The app arent K-m values for transport of Na+ were 400 mu M for ATP and 7 mM f or Na+. ATP-dependent transport of Na-22(+) was not inhibited by a pro tonophore or a membrane-permeable cation but was inhibited by an inhib itor of P-type ATPases.