# OC Root 2nd 3rd 4th PC Gene/Definition OC.417561 Archaea.3696 Euryarchaeota.7522 Methanoregula.180 mbn.1292 mbn:Mboo_1313 tRNA-guanine transglycosylase, various specificities; K18779 7-cyano-7-deazaguanine tRNA-ribosyltransferase [EC:2.4.2.48] OC.417561 Archaea.3696 Euryarchaeota.7522 Methanoregula.180 mfo.1571 mfo:Metfor_1670 tRNA-guanine transglycosylase; K18779 7-cyano-7-deazaguanine tRNA-ribosyltransferase [EC:2.4.2.48]