O-phosphoseryl-tRNASec kinase

O-phosphoseryl-tRNASec kinase (EC 2.7.1.164, PSTK, phosphoseryl-tRNA[Ser]Sec kinase, phosphoseryl-tRNASec kinase) is an enzyme with systematic name ATP:L-seryl-tRNASec O-phosphotransferase.^[1][2][3] This enzyme catalyses the following chemical reaction

ATP + L-seryl-tRNASec ${\displaystyle \rightleftharpoons }$ ADP + O-phospho-L-seryl-tRNASec

O-phosphoseryl-tRNASec kinase
Identifiers
EC no.	2.7.1.164
CAS no.	91273-83-5
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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In archaea and eukarya selenocysteine formation is achieved by a two-step process.