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Catalysis of the transfer of a nucleotidyl group to a reactant. Catalysis of the transfer of a guanylyl group to an acceptor. Catalysis of the reaction: 2 GTP = P1,P4-bis(5'-guanosyl) tetraphosphate + diphosphate.

View Gene Ontology (GO) Term

GO TERM SUMMARY
Name: guanosine-triphosphate guanylyltransferase activity
Acc: GO:0047351
Aspect: Molecular Function
Desc: Catalysis of the reaction: 2 GTP = P1,P4-bis(5'-guanosyl) tetraphosphate + diphosphate.
Synonyms:
  • GTP:GTP guanylyltransferase activity
Proteins in PDR annotated with:
   This term: 0
   Term or descendants: 0


[geneontology.org]
INTERACTIVE GO GRAPH

GO:0047351 - guanosine-triphosphate guanylyltransferase activity (interactive image map)
YRC Informatics Platform - Version 3.0
Created and Maintained by: Michael Riffle