FIG. 6.

MMS sensitivity of various strains. The MMS sensitivity assay was performed at 37°C as described in Materials and Methods. Data (percent survival) are expressed as the percentage of MMS-exposed cells forming colonies versus that of unexposed cells forming colonies. □, SK9040 (uvrDΔ294/pWSK29); ○, SK9052 (uvrDΔ294/uvrD300); ▵, SK9053 (uvrDΔ294/uvrD301); ⊞, SK9054 (uvrDΔ294/uvrD302); ♦, SK9055 (uvrDΔ294/uvrD303); ⊕, SK9056 (uvrDΔ294/uvrD304); ▿, SK9065 (uvrD⁺/uvrD303); ┌, SK9060 (uvrD⁺/pWKS29).