Patent ID: 7910715

Claim:
An isolated coryneform bacterium comprising a polynucleotide that encodes a polypeptide having OxyR transcription regulator activity, wherein the polypeptide comprises a) an amino acid sequence of SEQ ID NO: 2, with one of the proteinogenic amino acids except L-alanine being present at position 89, and with L-valine being present at position 244; b) an amino acid sequence which is at least 97% identical to the amino acid sequence of SEQ ID NO:6, with L-valine being present at position 244; c) an amino acid sequence selected from the group consisting of 1) amino acid sequence of SEQ ID NO:6, and 2) amino acid sequence of SEQ ID NO:6 including one or more conservative amino acid exchange(s); d) an amino acid sequence of SEQ ID NO: 2, with L-valine being present at position 89, and with L-valine being present at position 244; or e) a combination thereof.