2.8.4.3	tRNA-2-methylthio-N6-dimethylallyladenosine synthase	-	
2.8.4.4	[ribosomal protein S12] (aspartate89-C3)-methylthiotransferase	-	
2.8.4.5	tRNA (N6-L-threonylcarbamoyladenosine37-C2)-methylthiotransferase	-	
2.8.4.6	S-methyl-1-thioxylulose 5-phosphate methylthiotransferase	-	
2.8.5.1	S-sulfo-L-cysteine synthase (3-phospho-L-serine-dependent)	-	
2.8.5.2	L-cysteine S-thiosulfotransferase	-	
2.9.1.1	L-seryl-tRNASec selenium transferase	-	
2.9.1.2	O-phospho-L-seryl-tRNASec:L-selenocysteinyl-tRNA synthase	-	
2.9.1.3	tRNA 2-selenouridine synthase	-