O-phosphoseryl-tRNA(Sec) selenium transferase (SEPSECS) tetramer catalyses the transformation of phosphoserine (Sep) into selenocysteine (Sec) by using selenophosphate (SELP) as a selenium donor to convert the phosphoserylated transfer RNA (tRNA) for Sec (Sep-tRNASec) into Sec-tRNASec (Palioura et al. 2009, Yuan et al. 2006).
Palioura, S, Cardoso, AM, Salazar, JC, Yuan, J, Whitman, WB, Su, D, Söll, D, O'Donoghue, P, Hohn, MJ
Palioura, S, Sherrer, RL, Steitz, TA, Simonovic, M, Söll, D
phosphoseryl-selenocysteinyl-tRNA selenium transferase activity of PXLP-K284-SEPSECS tetramer [cytosol]
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