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REACTION
REACTION DIAGRAM
COMMENTARY
ORGANISM
UNIPROT
LITERATURE
a 3'-half-tRNA molecule with a 5'-oH end + a 5'-half-tRNA molecule with a 2',3'-cyclic phosphate end = a mature tRNA molecule containing a 2'-5'-phosphodiester bond
a 3'-half-tRNA molecule with a 5'-oH end + a 5'-half-tRNA molecule with a 2',3'-cyclic phosphate end = a mature tRNA molecule containing a 2'-5'-phosphodiester bond
a 3'-half-tRNA molecule with a 5'-oH end + a 5'-half-tRNA molecule with a 2',3'-cyclic phosphate end = a mature tRNA molecule containing a 2'-5'-phosphodiester bond
a 3'-half-tRNA molecule with a 5'-oH end + a 5'-half-tRNA molecule with a 2',3'-cyclic phosphate end = a mature tRNA molecule containing a 2'-5'-phosphodiester bond
Substrates: synthetic tRNA halves bearing 2',3'-cyclic phosphate and 5'-OH termini are substrates for the ligation reaction in vitro. The activity is dependent on GTP. The GTP structure is important but GTP hydrolysis is not required for the reaction, and GTPgammaS enhances the tRNA ligation activity. GTP is specific and indispensable for the tRNA ligation reaction. ATP, CTP, UTP, dATP, and dGTP cannot substitute for GTP. Neither GDP nor GMP enhance the ligation activity. The enzyme cleaves a 2',3'-cyclic phosphate group to produce a 2'-phosphate group at the 3' terminus of an RNA oligomer Products: the ligation product is unstable during in vitro reaction
the activity is dependent on GTP. The GTP structure is important but GTP hydrolysis is not required for the reaction, and GTPgammaS enhances the tRNA ligation activity. GTP is specific and indispensable for the tRNA ligation reaction. ATP, CTP, UTP, dATP, and dGTP cannot substitute for GTP. Neither GDP nor GMP enhance the ligation activity
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