DCCD induced sodium uptake by Anacystis nidulans
| Autor: | H. Paschinger |
|---|---|
| Rok vydání: | 1977 |
| Předmět: |
Proton
Light Sodium ATPase chemistry.chemical_element Biological Transport Active Cyanobacteria Biochemistry Microbiology Membrane Potentials Genetics Molecular Biology Membrane potential K efflux Valinomycin biology Chemistry General Medicine Rubidium Carbodiimides Dicyclohexylcarbodiimide Ethylmaleimide biology.protein Potassium Efflux Proton-Translocating ATPases |
| Zdroj: | Archives of microbiology. 113(3) |
| ISSN: | 0302-8933 |
| Popis: | The Na level inside cells of Anacystis nidulans is lower than in the external medium reflecting an effective Na extrusion. Na efflux is an active process and is driven by a Na+/H+-antiport system. The necessary H+-gradient is generated by a proton translocating ATPase in the plasmalemma. This ATPase (electrogenic proton pump) also produces the membrane potential (about -110 mV) responsible for K accumulation. N,N′-dicyclohexylcarbodiimide (DCCD) inhibits the ATPase and the H+-gradient completely, but the membrane potential is only reduced ( |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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