L-seryl-tRNASec selenium transferase
L-seryl-tRNASec selenium transferase | |||||||||
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Identifiers | |||||||||
EC no. | 2.9.1.1 | ||||||||
Databases | |||||||||
IntEnz | IntEnz view | ||||||||
BRENDA | BRENDA entry | ||||||||
ExPASy | NiceZyme view | ||||||||
KEGG | KEGG entry | ||||||||
MetaCyc | metabolic pathway | ||||||||
PRIAM | profile | ||||||||
PDB structures | RCSB PDB PDBe PDBsum | ||||||||
Gene Ontology | AmiGO / QuickGO | ||||||||
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In enzymology, a L-seryl-tRNASec selenium transferase (EC 2.9.1.1) is an enzyme that catalyzes the chemical reaction
- L-seryl-tRNASec + selenophosphate L-selenocysteinyl-tRNASec + phosphate
Thus, the two substrates of this enzyme are L-seryl-tRNASec and selenophosphate, whereas its two products are L-selenocysteinyl-tRNASec and phosphate.
This enzyme belongs to the family of transferases, specifically those transferring selenium-containing groups selenotransferases. The systematic name of this enzyme class is selenophosphate:L-seryl-tRNASec selenium transferase. Other names in common use include L-selenocysteinyl-tRNASel synthase, L-selenocysteinyl-tRNASec synthase selenocysteine synthase, cysteinyl-tRNASec-selenium transferase, and cysteinyl-tRNASec-selenium transferase. This enzyme participates in selenoamino acid metabolism. It employs one cofactor, pyridoxal phosphate.
References
[edit]- Forchhammer K, Bock A (1991). "Selenocysteine synthase from Escherichia coli. Analysis of the reaction sequence". J. Biol. Chem. 266 (10): 6324–8. doi:10.1016/S0021-9258(18)38121-3. PMID 2007585.