66 Chapter 2 *Later updated for this thesis with the latest GTDB database (September 2024) as genus QBUR01, most closely related to the genus “Ca. Methanocomedens” (ANME2a) belonging to the family Methanocomedenaceae Figure 5. Metabolic reconstruction of MAG 011 ANME-2 based on loci specified in Supplementary Table 3. The grey area represents the pseudo-periplasm, and the outermost circle represents the S-layer. Numbers that follow # indicate the number of heme-binding motifs. Abbreviations are as follows: F420, coenzyme F420; Fd, ferredoxin; CoM, coenzyme M; CoB, coenzyme B; MP, methanophenazine; HdrABC, cytoplasmic heterodisulfide reductase; Frh, F420-reducing hydrogenase; MvhD, methyl viologen-reducing hydrogenase subunit D; HdrDE, periplasmic heterodisulfide reductase; Mcr, methyl-coenzyme M reductase; H4MPT, tetrahydromethanopterin, Mtr, formylmethanofuran-H4MPT N-formyltransferase; Mer, F420-dependent methylene-H4MPT reductase; Mtd, F420-dependent methylene H4MPT dehydrogenase; Mch, Methenyl-H4MPT cyclohydrolase; Ftr, Formylmethanofuran: H4MPT formyltransferase; Fmd, molybdenum-dependent formylmethanofuran dehydrogenase; Fwd, tungsten-dependent formylmethanofuran dehydrogenase; Cyt, cytochrome; RNF, Rhodobacter nitrogen fixation complex; Fpo, F420:methanophenazine oxidoreductase; S-LP, S-layer protein; OmcZ, outer membrane cytochrome; FsrN2C, F420-dependent sulfite reductase; FrhB-FqoF, hypothetical F420- and Fd-oxidizing electron-confurcating hydrogenase; CODH/ACS, carbon monoxide dehydrogenase/acetyl-CoA synthase complex EC: 1.2.7.4/ 2.3.1.169); acss, acetyl-CoA synthetase (EC: 6.2.1.1); TCA, tricarboxylic acid cycle; SDH, succinate dehydrogenase.
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