Tags: Enzyme.
Archaeosine synthase (EC 2.6.1.97 ArcS TgtA2 MJ1022 (gene) glutamine:preQ0-tRNA amidinotransferase) is an enzyme with system name L-glutamine:7-cyano-7-carbaguanine aminotransferase. This enzyme catalyses the following chemical reaction L-glutamine + 7-cyano-7-carbaguanine15 in tRNA + H2O L-glutamate + archaeine15 in tRNAIn Euryarchaeota the reaction is catalysed by ArcS.