ID 2.1.1.257 DE tRNA (pseudouridine(54)-N(1))-methyltransferase. AN m(1)Psi methyltransferase. CA pseudouridine(54) in tRNA + S-adenosyl-L-methionine = H(+) + N(1)- CA methylpseudouridine(54) in tRNA + S-adenosyl-L-homocysteine. CC -!- While this archaeal enzyme is specific for the 54 position and does CC not methylate pseudouridine at position 55, the presence of CC pseudouridine at position 55 is necessary for the efficient CC methylation of pseudouridine at position 54. DR Q9YDX2, TRMY_AERPE ; O29206, TRMY_ARCFU ; B9LP86, TRMY_HALLT ; DR Q5UXQ3, TRMY_HALMA ; B0R6T1, TRMY_HALS3 ; Q9HNR6, TRMY_HALSA ; DR D4GTL8, TRMY_HALVD ; A6UUT1, TRMY_META3 ; Q8TQU1, TRMY_METAC ; DR Q0W2G0, TRMY_METAR ; Q12XH2, TRMY_METBU ; Q2FS92, TRMY_METHJ ; DR Q59034, TRMY_METJA ; Q8TWL5, TRMY_METKA ; A2STS4, TRMY_METLZ ; DR A4FXV7, TRMY_METM5 ; A9AB20, TRMY_METM6 ; A6VFL5, TRMY_METM7 ; DR Q8PU23, TRMY_METMA ; Q6LYR4, TRMY_METMP ; A0B6S6, TRMY_METTP ; DR A6UNQ5, TRMY_METVS ; Q3IRJ0, TRMY_NATPD ; Q9V0N8, TRMY_PYRAB ; DR Q8ZVQ3, TRMY_PYRAE ; Q8U126, TRMY_PYRFU ; O50109, TRMY_PYRHO ; DR C5A7F5, TRMY_THEGJ ; Q5JF45, TRMY_THEKO ; B6YVU7, TRMY_THEON ; //