#Methanococcoides burtonii DSM 6242 1761455 Mbur_1724 rbkR 1761454 Mbur_1723 ribB #Methanohalophilus mahii DSM 5219 10321649 Mmah_2024 rbkR 10321648 Mmah_2023 ribB #Methanosarcina acetivorans C2A 233862 MA0547 rbkR 233863 MA0548 ribB #Methanosarcina barkeri str. fusaro 1107062 Mbar_A1523 rbkR 1107063 Mbar_A1524 ribB #Methanosarcina mazei Goe1 249674 MM1709 rbkR 249675 MM1710 ribB