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. Author manuscript; available in PMC: 2016 Sep 21.
Published in final edited form as: Chembiochem. 2015 Aug 10;16(14):1993–1996. doi: 10.1002/cbic.201500305

Figure 4.

Figure 4

GC-MS analyses of hydrocarbons generated by VFe protein in the ATP-independent reaction of CO2-reduction. The products were generated in H2O when a) 12CO2 or b) 13CO2 was supplied as the substrate; or in D2O when c) 12CO2 or d) 13CO2 was supplied as the substrate. The mass-to-charge (m/z) ratios at which the products were traced are indicated. In the cases of C4H10 and C4D10 (a-d), the base peaks (*), or the tallest peaks representing the most common fragment ions of these species, were monitored to overcome the problem of detection limit.