Selenocysteine, the 21st genetically encoded amino acid, is the major form of the antioxidant trace element selenium in the human body. In eukaryotes and archaea its synthesis proceeds through a phosphorylated intermediate in a tRNA-dependent fashion. The final step of selenocysteine formation is catalyzed by O-phosphoseryl-tRNA:selenocysteinyl-tRNA synthase (SEPSECS) that converts phosphoseryl-tRNA(Sec) to selenocysteinyl-tRNA(Sec).
Donovan, J, Copeland, PR
Palioura, S, Herkel, J, Simonovic, M, Lohse, AW, Söll, D
Sheppard, K, Yuan, J, Devine, KM, Jester, B, Söll, D, Hohn, MJ
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