Phenazine methosulfonate

On the other hand various nonphysiological chemicals were identified as inhibitors of PHA synthases such as, for example, phenazine methosulfonate. None of these chemicals specifically inhibit PHA synthases and they are therefore not suitable for application in strategies to enrich mutants with altered PHA metabolism or altered PHA synthase activity. These inhibitors are only interesting in that they reveal some biochemical features of the enzymes. 

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