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. 2013 Jan 22;8(1):e49638. doi: 10.1371/journal.pone.0049638

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© 2013 Basavanna et al

This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are properly credited.

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Growth measured using OD₅₈₀ of the wild-type (squares), ΔmetQ (inverted triangles), ΔmetEF (triangles) and ΔmetEF/ΔmetQ (diamonds) S. pneumoniae strains grown in THY (A), C+Y with no added methionine (B), C+Y with 50 µM methionine (C), or C+Y with 750 µM methionine (D). Each data point is the mean log₂ OD₅₈₀ for three samples.