Transport of glutamate in Oenococcus oeni 8403

The transport of l-glutamate in Oenococcus oeni 8403 is energy dependent. It could be activated either by carbohydrate or arginine metabolism, and it was shown to be stimulated by l-malic acid at low pH values. Transport was optimal at pH 7.0. The apparent affinity constants for transport (KT) was 0.98 μM at pH 7.0. l-glutamate uptake was inhibited by glutamine, asparagine and l-aspartate.