EOG8G1PX4 GO:0008479 26/87 queuine tRNA-ribosyltransferase activity molecular_function "Catalysis of the reaction: tRNA guanine + queuine = tRNA queuine + guanine." [EC:2.4.2.29] EOG8G1PX4 GO:0008616 26/87 queuosine biosynthetic process biological_process "The chemical reactions and pathways resulting in the formation of queuosines, any of a series of nucleosides found in tRNA and having an additional pentenyl ring added via an NH group to the methyl group of 7-methylguanosine. The pentenyl ring may carry other substituents." [GOC:go_curators, ISBN:0198506732] EOG8G1PX4 GO:0046872 1/87 metal ion binding molecular_function "Interacting selectively and non-covalently with any metal ion." [GOC:ai]