2.1.1.282	additional information	bifunctional Trm5a from Pyrococcus abyssi (PaTrm5a) catalyses not only the methylation of N1, but also the further methylation of C7 on 4 demethylwyosine at position 37 to produce isowyosine (EC 2.1.1.228 and EC 2.1.1.282, respectively)	Pyrococcus abyssi	?	-	-	89	
2.1.1.282	additional information	Nanoarchaeum equitans NEQ228 protein displays a dual tRNAPhe:m1G/imG2 methyltransferase activity. Two different types of substrates are used: (1) bulk tRNA, isolated from Salmonella enterica trmDELTA27 mutant containing the unmodified G37 nucleotide leading to the formation of pm1G, and (2) tRNA, which is isolated from the Saccharomes cerevisiae DELTAtyw2 mutant that contains the imG-14 wyosine derivative leading to formation of pimG2pA dinucleotide and to a lesser extent to pm1G, likely resulting from the small amounts of G37-containing tRNAPhe present in the bulk tRNA isolates from the Scetyw2 mutant	Nanoarchaeum equitans	?	-	-	89	
2.1.1.282	additional information	Pyrococcus abyssi PAB2272 protein displays a dual tRNAPhe:m1G/imG2 methyltransferase activity. Two different types of substrates are used: (1) bulk tRNA, isolated from Salmonella enterica trmDELTA27 mutant containing the unmodified G37 nucleotide leading to the formation of pm1G, and (2) tRNA, which is isolated from the Saccharomes cerevisiae DELTAtyw2 mutant that contains the imG-14 wyosine derivative leading to formation of pimG2pA dinucleotide and to a lesser extent to pm1G, likely resulting from the small amounts of G37-containing tRNAPhe present in the bulk tRNA isolates from the Scetyw2 mutant	Pyrococcus abyssi	?	-	-	89	
2.1.1.282	additional information	structural basis for substrate recognition, the D1 domain of the enzyme undergoes large conformational changes upon the binding of tRNA., the enzyme recognizes the overall shape of tRNA. PaTrm5a adopts distinct open conformations before and after the binding of tRNA. Enzyme-substrate interactions in the catalytic domain. The anticodon interactions mostly concentrate on the A36-G37-A38 triplet. Proposed reaction mechanism of Trm5a with modified yeast tRNAPhe, overview	Pyrococcus abyssi	?	-	-	89	
2.1.1.282	additional information	substrate-binding modes of PaTrm5a, and recognition of substrate analogues, overview	Pyrococcus abyssi	?	-	-	89	
2.1.1.282	additional information	Sulfolobus solfataricus SSO2439 protein exhibits a tRNAPhe:imG2, but not tRNAPhe:m1G (EC 2.1.1.228), methyltransferase activity. The enzyme SSO2439 shows incorporation of the [methyl-14C] group into bulk yeast tRNA isolated from Saccharomyces cerevisiae DELTAtyw2 (containing imG-14 in tRNAPhe), but not into that from the Salmonella enterica trmDELTA27 (containing G37) mutant	Saccharolobus solfataricus	?	-	-	89	
2.1.1.282	additional information	Sulfolobus solfataricus SSO2439 protein exhibits a tRNAPhe:imG2, but not tRNAPhe:m1G (EC 2.1.1.228), methyltransferase activity. The enzyme SSO2439 shows incorporation of the [methyl-14C] group into bulk yeast tRNA isolated from Saccharomyces cerevisiae DELTAtyw2 (containing imG-14 in tRNAPhe), but not into that from the Salmonella enterica trmDELTA27 (containing G37) mutant	Saccharolobus solfataricus P2	?	-	-	89	
2.1.1.282	additional information	Sulfolobus solfataricus SSO2439 protein exhibits a tRNAPhe:imG2, but not tRNAPhe:m1G (EC 2.1.1.228), methyltransferase activity. The enzyme SSO2439 shows incorporation of the [methyl-14C] group into bulk yeast tRNA isolated from Saccharomyces cerevisiae DELTAtyw2 (containing imG-14 in tRNAPhe), but not into that from the Salmonella enterica trmDELTA27 (containing G37) mutant	Saccharolobus solfataricus JCM 11322	?	-	-	89	
2.1.1.282	additional information	Sulfolobus solfataricus SSO2439 protein exhibits a tRNAPhe:imG2, but not tRNAPhe:m1G (EC 2.1.1.228), methyltransferase activity. The enzyme SSO2439 shows incorporation of the [methyl-14C] group into bulk yeast tRNA isolated from Saccharomyces cerevisiae DELTAtyw2 (containing imG-14 in tRNAPhe), but not into that from the Salmonella enterica trmDELTA27 (containing G37) mutant	Saccharolobus solfataricus ATCC 35092	?	-	-	89	
2.1.1.282	additional information	Sulfolobus solfataricus SSO2439 protein exhibits a tRNAPhe:imG2, but not tRNAPhe:m1G (EC 2.1.1.228), methyltransferase activity. The enzyme SSO2439 shows incorporation of the [methyl-14C] group into bulk yeast tRNA isolated from Saccharomyces cerevisiae DELTAtyw2 (containing imG-14 in tRNAPhe), but not into that from the Salmonella enterica trmDELTA27 (containing G37) mutant	Saccharolobus solfataricus DSM 1617	?	-	-	89