78.
    发明专利
    未知

    公开(公告)号:LU85197A1

    公开(公告)日:1984-11-08

    申请号:LU85197

    申请日:1984-02-07

    Applicant: SCLAVO SPA

    Inventor: RAPPUOLI RINO

    Abstract: Process for the production of a protein correlated with the diphtheric toxin which comprises culturing in a liquid nutrient medium having a concentration of iron ions of from 0.05 mu g/ml to 0.5 mu g/ml, at a temperature of from 30 DEG C. to 40 DEG C., in a neutral culturing environment and under aerobic conditions, a microorganism belonging to the Corynebacterium diphtheriae genus with two mutant phages encoding the protein correlated with the diphtheric toxin integrated in a nontandem mode in their chromosomes.

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