Table 4 Summary of separation of function mutants
SOS ConstitutiveNalidixic Acid SOS DefectMutator Activity
WTNoNoNo
ΔDnaQYesYesHigh
DnaQ928NoYesModerate
Q182ANoYesLow
QLSLPLYesNoLow
76CLNNKNoYesModerate
143NSCLNNoNoModerate
162LFKQLYesNoLow
208VFKHQNoYesNo
  • Yes or no indicates presence or absence of the indicated phenotype. Mutator phenotypes were characterized into four groups to reflect the wide range that was observed.