FN Archimer Export Format PT J TI Genomic Insights into the Carbon and Energy Metabolism of a Thermophilic Deep-Sea Bacterium Deferribacter autotrophicus Revealed New Metabolic Traits in the Phylum Deferribacteres BT AF Slobodkin, Alexander Slobodkina, Galina Allioux, Maxime Alain, Karine Jebbar, Mohamed Shadrin, Valerian Kublanov, Ilya Toshchakov, Stepan Bonch-Osmolovskaya, Elizaveta AS 1:1;2:1;3:2;4:3;5:2;6:1;7:1;8:1;9:1; FF 1:;2:;3:;4:;5:;6:;7:;8:;9:; C1 Winogradsky Institute of Microbiology, Research Center of Biotechnology of the Russian Academy of Sciences, 119071 Moscow, Russia Univ Brest, CNRS, Ifremer, LIaA1211, Laboratoire de Microbiologie des Environnements Extrêmes LM2E, F-29280 Plouzané, France Univ Brest, CNRS, Ifremer, LIaA1211, Laboratoire de Microbiologie des Environnements Extrêmes LM2E, F-29280 Plouzané, France C2 RUSSIAN ACAD SCI, RUSSIA UBO, FRANCE CNRS, FRANCE UM BEEP-LM2E IN WOS Cotutelle UMR DOAJ copubli-int-hors-europe IF 1.151 TC 14 UR https://archimer.ifremer.fr/doc/00589/70078/68051.pdf https://archimer.ifremer.fr/doc/00589/70078/68052.pptx https://archimer.ifremer.fr/doc/00589/70078/68053.xlsx https://archimer.ifremer.fr/doc/00589/70078/68054.xlsx https://archimer.ifremer.fr/doc/00589/70078/68055.xlsx https://archimer.ifremer.fr/doc/00589/70078/68056.xlsx https://archimer.ifremer.fr/doc/00589/70078/68057.xlsx https://archimer.ifremer.fr/doc/00589/70078/68058.pdf LA English DT Article DE ;autotrophic;thermophile;roTCA cycle;CO oxidation;Fe(III)-reduction;nitrate reduction AB nformation on the biochemical pathways of carbon and energy metabolism in representatives of the deep lineage bacterial phylum Deferribacteres are scarce. Here, we report the results of the sequencing and analysis of the high-quality draft genome of the thermophilic chemolithoautotrophic anaerobe Deferribacter autotrophicus. Genomic data suggest that CO2 assimilation is carried out by recently proposed reversible tricarboxylic acid cycle (“roTCA cycle”). The predicted genomic ability of D. autotrophicus to grow due to the oxidation of carbon monoxide was experimentally proven. CO oxidation was coupled with the reduction of nitrate to ammonium. Utilization of CO most likely involves anaerobic [Ni, Fe]-containing CO dehydrogenase. This is the first evidence of CO oxidation in the phylum Deferribacteres. The genome of D. autotrophicus encodes a Nap-type complex of nitrate reduction. However, the conversion of produced nitrite to ammonium proceeds via a non-canonical pathway with the participation of hydroxylamine oxidoreductase (Hao) and hydroxylamine reductase. The genome contains 17 genes of putative multiheme c-type cytochromes and “e-pilin” genes, some of which are probably involved in Fe(III) reduction. Genomic analysis indicates that the roTCA cycle of CO2 fixation and putative Hao-enabled ammonification may occur in several members of the phylum Deferribacteres. PY 2019 PD NOV SO Genes SN 2073-4425 PU MDPI AG VL 10 IS 11 UT 000502296000015 DI 10.3390/genes10110849 ID 70078 ER EF