Fig. 4.—

Physical maps of mtaA/mtbA, mtaB, and mtaC. Physical maps of mtaA/mtbA, mtaB, and mtaC genes in “Candidatus Methanomethylophilus alvus” Mx1201, Methanomassiliicoccus luminyensis B10, in comparison with Methanosarcina acetivorans CA2 as a representative of Methanosarcinales, and with Methanosphaera stadtmanae DSM 3091 as a representative of Methanobacteriales. The contigs of M. luminyensis (the assembled genome is not yet available) are separated by slashes. MAP, Methyltransferase Activation Protein.