FIG. 5.

Growth stage dependence of skgA expression. LacZ activity in SGC130 skgA⁺ skgA::lacZ was measured by hydrolysis of CPRG during growth in PYE. Thick bars indicate LacZ activity as nanomoles of CPRG hydrolyzed per minute divided by OD₆₀₀ of the culture sampled; solid circles indicate OD₆₀₀.