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Biomethylation of arsenite in E. coli expressing algal CmarsM7. (A) HPLC-ICP-MS analysis of the soluble As(III) transformation products generated by E. coli ΔarsRBC expressing pET28a-alg-arsM7 after 3 and 5 h of incubation at 37 °C. (B) The volatile products produced after 1, 3, and 5 h were analyzed from trapped headspace gas. Curves are displaced on the y axis for clarity.
