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. Author manuscript; available in PMC: 2017 Sep 13.
Published in final edited form as: Nat Ecol Evol. 2017 Mar 13;1:0083. doi: 10.1038/s41559-017-0083

Figure 2. Peroxydisulfate enables the non-enzymatic interconversion of TCA intermediates.

Figure 2

A) Combinatorial condition screening: Five TCA intermediates were co-incubated for 0 and 300 min in combinations of eight iron and eleven sulfur sources. B) Significant reactions, expressed as c.p.s. illustrated in a heat matrix (left panel). For each possible reaction, product accumulation and substrate consumption over 300 min were calculated from integrated SRM signals. Most conditions did not reveal significant reactivity (significance threshold z > 1.6; Supplementary Table 3, Supplementary Figures 5-6). Right panel: Ten examples of significant reactions as detected upon a combination of peroxydisulfate with ferrous sulfide. left: 0 min, right: 300 min.