>sp|Q7VDU8|TRMB_PROMA tRNA (guanine-N(7)-)-methyltransferase OS=Prochlorococcus marinus GN=trmB MRQHVNPLSHFFQLHNELPRPEDLFESIDLPIHLDIGCARGKFLIDMAADNAQWNFLGVE IREPLVFAAEKERIELGLTNLRFFFCNANISLEKWFLSLENGQLKRVSIQFPDPWFKKRH RKRRVLNQSFLFLLAQSLDIGSELFIQSDVISVMDEMTEIIELSHFFDRHSKYSESNLNA NPFKFCTEREKYAIHQGVKVYRQLYFRNSTGIL