1. Bellmann AM , Vrljic M , Pà tek M , Sahm H , Krämer R & Eggeling L (2001) Regulation and specificity of the LysE-mediated export of amino acids by Corynebacterium glutamicum. Microbiol 147: 1765â1774.
2. Benov L & Fridovich I (1999) Why superoxide imposes an aromatic amino acid auxotrophy on Escherichia coli. J Biol Chem 274: 4202â4206.
3. Burkovski A & Krämer R (2002) Bacterial amino acid transport proteins: occurrence, functions, and significance for biotechnological applications. Appl Microbiol Biotechnol 58: 265â274.
4. DaÃler T , Maier T , Winterhalter C & Böck A (2000) Identification of a major facilitator protein from Escherichia coli involved in efflux of metabolites of cysteine pathway. Mol Microbiol 36: 1101â1112.
5. Datsenko KA & Wanner BL (2000) One-step inactivation of chromosomal genes in Escherichia coli K-12 using PCR products. Proc Natl Acad Sci USA 97: 6640â6645.