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2.7.1.164: O-phosphoseryl-tRNASec kinase

This is an abbreviated version!
For detailed information about O-phosphoseryl-tRNASec kinase, go to the full flat file.

Word Map on EC 2.7.1.164

Reaction

ATP
+
L-seryl-tRNASec
=
ADP
+
O-phospho-L-seryl-tRNASec

Synonyms

O-phosphoseryl-tRNA kinase, O-phosphoseryl-tRNA(Sec) kinase, O-phosphoseryl-tRNASec kinase, phosphoseryl-tRNASec kinase, phosphoseryl-tRNA[Ser]Sec kinase, PSTK, Tb10.6k15.1110, TbPSTK

ECTree

     2 Transferases
         2.7 Transferring phosphorus-containing groups
             2.7.1 Phosphotransferases with an alcohol group as acceptor
                2.7.1.164 O-phosphoseryl-tRNASec kinase

Systematic Name

Systematic Name on EC 2.7.1.164 - O-phosphoseryl-tRNASec kinase

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SYSTEMATIC NAME
IUBMB Comments
ATP:L-seryl-tRNASec O-phosphotransferase
In archaea and eukarya selenocysteine formation is achieved by a two-step process: O-phosphoseryl-tRNASec kinase (PSTK) phosphorylates the endogenous L-seryl-tRNASec to O-phospho-L-seryl-tRNASec, and then this misacylated amino acid-tRNA species is converted to L-selenocysteinyl-tRNASec by EC 2.9.1.2 (Sep-tRNA:Sec-tRNA synthase).