>sp|Q31CU2|TRMB_PROM9 tRNA (guanine-N(7)-)-methyltransferase OS=Prochlorococcus marinus GN=trmB MRQHVNPLSRNFNEIERIPALIEMFGDSKSNLHLDIGCAAGEFLFDLALINTNWNYIGIE IRERLVKTAKLKVRERDIKNLYFIFGNANNILHDVQSKFIFKNVKSISFNFPDPWFKKRH YKRRVIQPEFLNLLSNSLQKGSLIFIKTDVKDLFDYMDCIISNNFNFKKIDKNDFNFSES FNPSQVKTNREKYVIVNQLDIFERIYIKI