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O-phospho-L-seryl-tRNASec:L-selenocysteinyl-tRNA synthase
Selenocysteine synthase tetramer, Mus musculus
Identifiers
EC no. 2.9.1.2
Databases
IntEnz IntEnz view
BRENDA BRENDA entry
ExPASy NiceZyme view
KEGG KEGG entry
MetaCyc metabolic pathway
PRIAM profile
PDB structures RCSB PDB PDBe PDBsum
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PMC articles
PubMed articles
NCBI proteins

O-phospho-L-seryl-tRNASec:L-selenocysteinyl-tRNA synthase ( EC 2.9.1.2, MMPSepSecS, SepSecS, SLA/LP, O-phosphoseryl-tRNA:selenocysteinyl-tRNA synthase, O-phospho-L-seryl-tRNA:L-selenocysteinyl-tRNA synthase) is an enzyme with systematic name selenophosphate:O-phospho-L-seryl-tRNASec selenium transferase. [1] [2] [3] [4] This enzyme catalyses the following chemical reaction

O-phospho-L-seryl-tRNASec + selenophosphate ⇌ L-selenocysteinyl-tRNASec + phosphate

This enzyme is pyridoxal- phosphate protein.

References

  1. ^ Palioura S, Sherrer RL, Steitz TA, Söll D, Simonovic M (July 2009). "The human SepSecS-tRNASec complex reveals the mechanism of selenocysteine formation". Science. 325 (5938): 321–5. Bibcode: 2009Sci...325..321P. doi: 10.1126/science.1173755. PMC  2857584. PMID  19608919.
  2. ^ Araiso Y, Palioura S, Ishitani R, Sherrer RL, O'Donoghue P, Yuan J, Oshikane H, Domae N, Defranco J, Söll D, Nureki O (March 2008). "Structural insights into RNA-dependent eukaryal and archaeal selenocysteine formation". Nucleic Acids Research. 36 (4): 1187–99. doi: 10.1093/nar/gkm1122. PMC  2275076. PMID  18158303.
  3. ^ Aeby E, Palioura S, Pusnik M, Marazzi J, Lieberman A, Ullu E, Söll D, Schneider A (March 2009). "The canonical pathway for selenocysteine insertion is dispensable in Trypanosomes". Proceedings of the National Academy of Sciences of the United States of America. 106 (13): 5088–92. Bibcode: 2009PNAS..106.5088A. doi: 10.1073/pnas.0901575106. PMC  2664009. PMID  19279205.
  4. ^ Yuan J, Palioura S, Salazar JC, Su D, O'Donoghue P, Hohn MJ, Cardoso AM, Whitman WB, Söll D (December 2006). "RNA-dependent conversion of phosphoserine forms selenocysteine in eukaryotes and archaea". Proceedings of the National Academy of Sciences of the United States of America. 103 (50): 18923–7. Bibcode: 2006PNAS..10318923Y. doi: 10.1073/pnas.0609703104. PMC  1748153. PMID  17142313.

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