1.12.98.3 expression in Escherichia coli 1.12.98.3 plasmid manipulation and isolation in Escherichia coli, promoter fusion plasmids are transformed into Methanosarcina acetivorans WWM82 via liposome-mediated transformation 1.12.98.3 plasmid manipulation and isolation in Escherichia coli, promoter fusion plasmids are transformed into Methanosarcina barkeri WWM85 via liposome-mediated transformation