title: A second mechanism for sodium extrusion in Halobacterium halobium: a light-driven sodium pump.
mesh_terms: D002463:Cell Membrane Permeability / Q000528:radiation effects; D004563:Electrochemistry; D006217:Halobacterium / Q000235:genetics / Q000378:metabolism*; D008027:Light; D008564:Membrane Potentials; D009154:Mutation; D012964:Sodium / Q000378:metabolism*
chemical_list: D012964:Sodium