CATH Classification

Domain Context

CATH Clusters

Superfamily Vaccinia Virus protein VP39
Functional Family mRNA-capping enzyme catalytic subunit

Enzyme Information

2.7.7.50
mRNA guanylyltransferase.
based on mapping to UniProt P04298
GTP + (5')pp-Pur-mRNA = diphosphate + G(5')ppp-Pur-mRNA.
-!- Can modify also synthetic poly(A) and poly(G) to form the structures m(7)G(5')pppAn and m(7)G(5')pppGn.
3.1.3.33
Polynucleotide 5'-phosphatase.
based on mapping to UniProt P04298
A 5'-phosphopolynucleotide + H(2)O = a polynucleotide + phosphate.
-!- Does not act on nucleoside monophosphates. -!- Induced in Escherichia coli by T-even phages.
2.1.1.56
mRNA (guanine-N(7)-)-methyltransferase.
based on mapping to UniProt P04298
S-adenosyl-L-methionine + G(5')pppR-RNA = S-adenosyl-L-homocysteine + m(7)G(5')pppR-RNA.
-!- Adds an N(7)-methylguanine cap to mRNA. -!- The nucleoside next to the terminal guanosine may be either guanosine or adenosine.

UniProtKB Entries (1)

P04298
MCEL_VACCW
Vaccinia virus WR
MRNA-capping enzyme catalytic subunit

PDB Structure

PDB 2VDW
External Links
Method X-RAY DIFFRACTION
Organism
Primary Citation
Structural Insights Into the Mechanism and Evolution of the Vaccinia Virus Mrna CAP N7 Methyl- Transferase.
De La Pena, M., Kyrieleis, O.J.P., Cusack, S.
Embo J.