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GO:0004484
GO:0004484
mRNA guanylyltransferase activity
Details:
Catalysis of the reaction: GTP + (5')pp-Pur-mRNA = diphosphate + G(5')ppp-Pur-mRNA; G(5')ppp-Pur-mRNA is mRNA containing a guanosine residue linked 5' through three phosphates to the 5' position of the terminal residue.
GO Category:
MF
4709
Adenylation_mRNA_capping
10934
Adenylation_DNA_ligase_like superfamily