Requirement of de novo synthesis of the OdhI protein in penicillin-induced glutamate production by Corynebacterium glutamicum.

We found that penicillin-induced glutamate production by Corynebacterium glutamicum is inhibited when a de novo protein synthesis inhibitor, chloramphenicol, is added simultaneously with penicillin. When chloramphenicol was added 4 h after penicillin addition, glutamate production was essentially unaffected. (3)H-Leucine incorporation experiments revealed that protein synthesis continued for 1 h after penicillin addition and then gradually decreased.