Article
Pore mutations in ammonium transporter AMT1 with increased electrogenic ammonium transport activity.
The Journal of biological chemistry - 11 Sept 2009
Loqué Dominique, Mora Silvia I, Andrade Susana L A, Pantoja Omar, Frommer Wolf B
Abstract excerpt
AMT/Mep ammonium transporters mediate high affinity ammonium/ammonia uptake in bacteria, fungi, and plants. The Arabidopsis AMT1 proteins mediate uptake of the ionic form of ammonium. AMT transport activity is controlled allosterically via a highly conserved cytosolic C terminus that interacts with neighboring subunits in a trimer. The C terminus is thus capable of modulating the conductivity of the pore. To gain...
Topics
- Animals
- Archaeoglobus fulgidus
- Biological Transport
- Cation Transport Proteins
- Electrophysiology
- Genetic Complementation Test
- Kinetics
- Models, Biological
- Mutation
- Oocytes
- Plant Proteins