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Effect of overexpression of the glycine cleavage operon on growth of the triple mutant. After growth overnight in glucose minimal medium, the strains were subcultured into the same medium with 0.5% Casamino Acids and photographed after 5 h. The triple mutant (A), the triple mutant strain carrying the glycine cleavage operon on plasmid pGS146 (B), and the parent strain (C) are shown.
