Community and Proteomic Analysis of Anaerobic Consortia Converting Tetramethylammonium to Methane

Figure 5

Proteins expressed in the pathways of methylotrophic, hydrogenotrophic, and acetotrophic methanogenesis of Methanomethylovorans hollandica in the conversion of tetramethylammonium (QMA) to methane. TMA: trimethylamine; DMA: dimethylamine; MMA: monomethylamine; MeOH: methanol; MFR: methanofuran; H₄MPT: tetrahydromethanopterin; HS-CoM: coenzyme M; HS-CoB: coenzyme B; CoM-S-S-CoB: heterodisulfide of HS-CoM and HS-CoB; F₄₂₀H₂: reduced coenzyme F₄₂₀; Fd_red: reduced ferredoxin; Fd_ox: oxidized ferredoxin; H₂ase: hydrogenase. The proteins detected in the study were highlighted in red and referred to in Table S2.