guanosine-triphosphate guanylyltransferase activity
  id: GO:0047351
  name: guanosine-triphosphate guanylyltransferase activity
  namespace: molecular_function
  type: go
  obsolete: False
Description: Catalysis of the reaction: 2 GTP = P(1),P(4)-bis(5'-guanosyl) tetraphosphate + diphosphate + H(+).
Parent Functions
| id | name | 
|---|---|
| GO:0070568 | guanylyltransferase activity | 


