Abstract: The invention relates to an isolated polynucleotide having a polynucleotide sequence which codes for the alr gene, and a host-vector system having a coryneform host bacterium in which the alr gene is present in attenuated form and a vector which carries at least the alr gene according to SEQ ID No 1, and the use of polynucleotides which comprise the sequences according to the invention as hybridization probes.

Abstract: The invention relates to an isolated polynucleotide having a polynucleotide sequence which codes for the alr gene, and a host-vector system having a coryneform host bacterium in which the alr gene is present in attenuated form and a vector which carries at least the alr gene according to SEQ ID No 1, and the use of polynucleotides which comprise the sequences according to the invention as hybridization probes.

Abstract: The invention relates to an isolated polynucleotide having a polynucleotide sequence which codes for the alr gene, and a host-vector system having a coryneform host bacterium in which the alr gene is present in attenuated form and a vector which carries at least the alr gene according to SEQ ID No 1, and the use of polynucleotides which comprise the sequences according to the invention as hybridization probes.

Abstract: The invention relates to an isolated polynucleotide having a polynucleotide sequence which codes for the alr gene, and a host-vector system having a coryneform host bacterium in which the alr gene is present in attenuated form and a vector which carries at least the alr gene according to SEQ ID No 1, and the use of polynucleotides which comprise the sequences according to the invention as hybridization probes.

Abstract: This invention relates to the mutually compatible plasmids pTET3 and pCRY4, isolated from the strain of Corynebacterium glutamicum deposited under DSM number 5616, wherein plasmid pTET3 is characterised by 1.1 a length of ˜27.8 kbp and the restriction map shown in FIG. 1, 1.2 a replication region comprising the nucleotide sequence shown in SEQ ID no. 1 and 1.3 an antibiotic resistance region consisting of a tetA gene imparting tetracycline resistance and an aadA gene imparting streptomycin and spectinomycin resistance, shown in SEQ ID no. 6, and plasmid pCRY4 is characterised by 1.4 a length of ˜48 kbp and the restriction map shown in FIG. 2 and 1.5 a replication region comprising the nucleotide sequence shown in SEQ ID no. 4 to composite plasmid vectors of these plasmids which are capable of autonomous replication in coryneform bacteria and to processes for the production of L-amino acids, vitamins and nucleotides using these bacteria.

Abstract: An isolated polynucleotide from coryneform bacteria containing a polynucleotide sequence selected from the group:

Abstract: The invention relates to polynucleotide sequences from coryneform bacteria coding for the ilvE gene and a process for the fermentative preparation of amino acids using bacteria in which the endogenous ilvE gene is enhanced, as well as to the use of polynucleotides containing the sequences according to the invention as hybridization probes.

Abstract: The invention relates to an isolated polynucleotide having a polynucleotide sequence which codes for the alr gene, and a host-vector system having a coryneform host bacterium in which the air gene is present in attenuated form and a vector which carries at least the air gene according to SEQ ID No 1, and the use of polynucleotides which comprise the sequences according to the invention as hybridization probes.