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tRNA 2-selenouridine synthase The Escherichia coli YbbB protein was shown to encode a selenophosphate-dependent tRNA 2-selenouridine synthase, essential for modification of some tRNAs to replace a sulfur atom with selenium. This enzyme works with SelD, the selenium donor protein, which also acts in selenocysteine incorporation. Although the members of this protein family show a fairly deep split, sequences from both sides of the split are supported by co-occurence with, and often proximity to, the selD gene. [Protein synthesis, tRNA and rRNA base modification] |
Jiyao W et al.(2023). "The conserved domain database in 2023.",