Spontaneous mutagenesis in strains deficient in histone H3 K56 deacetylation.

With the exception of the first four strains, the strains are E134 (wild type) and its mutant derivatives. Fluctuation analyses and calculations of both mutation rates and 95% confidence intervals were performed as described in Materials and Methods. 95% confidence intervals are in parentheses. BY4742 strain lacks the his7-2 reporter. The difference between two mutation rates marked with
a, b, or c a, b, or c is not statistically significant (ap = 0.17, bp = 0.06, and cp = 0.10).