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Catalysis of the ligation of two substances via a phosphoric ester bond with concomitant breakage of a diphosphate linkage, usually in a nucleoside triphosphate. Catalysis of the reaction: ATP + RNA 3'-terminal-phosphate = AMP + diphosphate + RNA terminal-2',3'-cyclic-phosphate. Catalysis of a ring closure reaction. Catalysis of the ligation of two substances with concomitant breaking of a diphosphate linkage, usually in a nucleoside triphosphate. Ligase is the systematic name for any enzyme of EC class 6. Catalysis of a biochemical reaction at physiological temperatures. In biologically catalyzed reactions, the reactants are known as substrates, and the catalysts are naturally occurring macromolecular substances known as enzymes. Enzymes possess specific binding sites for substrates, and are usually composed wholly or largely of protein, but RNA that has catalytic activity (ribozyme) is often also regarded as enzymatic.

View Gene Ontology (GO) Term

GO TERM SUMMARY

Name: RNA-3'-phosphate cyclase activity
Acc: GO:0003963
Aspect: Molecular Function
Desc: Catalysis of the reaction: ATP + RNA 3'-terminal-phosphate = AMP + diphosphate + RNA terminal-2',3'-cyclic-phosphate.
Synonyms:
  • RNA-3'-phosphate:RNA ligase (cyclizing, AMP-forming)
  • RNA 3'-terminal phosphate cyclase activity
  • RNA cyclase activity
Proteins in PDR annotated with:
   This term: 10 [Search]
   Term or descendants: 10 [Search]


[geneontology.org]
INTERACTIVE GO GRAPH

GO:0003963 - RNA-3'-phosphate cyclase activity (interactive image map)

YRC Informatics Platform - Version 3.0
Created and Maintained by: Michael Riffle