CO2-H2 autotrophy in Metallosphaera sedula
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چکیده
Background: Thermoacidophilic Sulfolobales contain a novel CO2 fixation pathway; all enzymes but one have been accounted for in Metallosphaera sedula. Results: Enzymes encoded in Msed_0394 and Msed_0406 each exhibit 4-hydroxybutyrate-CoA synthetase activity, consistent with transcriptomic evidence. Conclusion: Msed_0406 is likely the physiologically relevant enzyme in the cycle. Significance: All enzymes are now accounted for in the CO2 fixation cycle of M. sedula.
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تاریخ انتشار 2012