Additional file 4.

Relevant traces from the HPLC/MS analysis from E. coli. A) Traces from HT115(DE3) and HT115(DE3)aroD of m/z = -730.244 corresponding to the negative ion of formylTHFGlu3. B) Traces from formylTHFGlu3 show that this species becomes undetectable in OP50 with increasing concentrations of SMX. C) Traces from C. elegans lysates corresponding to the negative ion of 5-methylTHFGlu5, with 0, 0.1 and 1 μg/ml SMX.

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Virk et al. BMC Biology 2012 10:67   doi:10.1186/1741-7007-10-67