FIG 4.
Ratios of growth rates of mutants with lesions in various methylotrophy-specific modules to the growth rate of the Δcel wild-type strain PA1 on 15 mM methylamine. The Δfae and ΔmptG mutants represent strains with partial and complete lesions in the H4MPT-dependent pathway for formaldehyde oxidation (or C1 dissimilation), respectively. The ΔftfL mutant represents a strain with a lesion in the H4F-dependent pathway for formate assimilation, and the ΔglyA mutant represents a strain with a lesion in the serine cycle for C1 assimilation. Error bars represent the 95% confidence intervals of the mean ratio for triplicate cultures for each condition.