CATH Classification

Domain Context

CATH Clusters

Superfamily 2.60.40.350
Functional Family Envelope glycoprotein

Enzyme Information

3.6.1.15
Nucleoside-triphosphate phosphatase.
based on mapping to UniProt Q58HT7
NTP + H(2)O = NDP + phosphate.
-!- The enzyme is found in eukaryotes and thermophilic bacteria, but appears to be absent from mesophilic bacteria. -!- Also hydrolyzes nucleoside diphosphates, thiamine diphosphate and FAD. -!- The enzyme from the plant Pisum sativum (garden pea) is regulated by calmodulin.
2.1.1.57
Methyltransferase cap1.
based on mapping to UniProt Q58HT7
S-adenosyl-L-methionine + a 5'-(N(7)-methyl 5'-triphosphoguanosine)- (purine-ribonucleotide)-[mRNA] = S-adenosyl-L-homocysteine + a 5'-(N(7)- methyl 5'-triphosphoguanosine)-(2'-O-methyl-purine-ribonucleotide)- [mRNA].
-!- This enzyme catalyzes the methylation of the ribose on the first transcribed nucleotide of mRNA or snRNA molecules, which may be either guanosine or adenosine. -!- This methylation event is known as cap1, and occurs in all mRNAs and snRNAs of higher eukaryotes, including insects, vertebrates and their viruses. -!- The human enzyme can also methylate mRNA molecules that lack methylation on the capping 5'-triphosphoguanosine. -!- Formerly EC 2.1.1.58.
3.4.21.91
Flavivirin.
based on mapping to UniProt Q58HT7
Selective hydrolysis of -Xaa-Xaa-|-Yaa- bonds in which each of the Xaa can be either Arg or Lys and Yaa can be either Ser or Ala.
3.6.4.13
RNA helicase.
based on mapping to UniProt Q58HT7
ATP + H(2)O = ADP + phosphate.
-!- RNA helicases utilize the energy from ATP hydrolysis to unwind RNA. -!- Some of them unwind RNA with a 3' to 5' polarity, other show 5' to 3' polarity. -!- Some helicases unwind DNA as well as RNA. -!- May be identical with EC 3.6.4.12 (DNA helicase).
2.7.7.48
RNA-directed RNA polymerase.
based on mapping to UniProt Q58HT7
Nucleoside triphosphate + RNA(n) = diphosphate + RNA(n+1).
-!- Catalyzes RNA-template-directed extension of the 3'-end of an RNA strand by one nucleotide at a time. -!- Can initiate a chain de novo. -!- See also EC 2.7.7.6.
2.1.1.56
mRNA (guanine-N(7)-)-methyltransferase.
based on mapping to UniProt Q58HT7
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)

Q58HT7
POLG_DEN4P
Dengue virus 4 Philippines/H241/1956
Genome polyprotein

PDB Structure

PDB 4AM0
External Links
Method X-RAY DIFFRACTION
Organism
Primary Citation
Structural Analysis of a Dengue Cross-Reactive Antibody Complexed with Envelope Domain III Reveals the Molecular Basis of Cross-Reactivity.
Midgley, C.M., Flanagan, A., Tran, H.B., Dejnirattisai, W., Chawansuntati, K., Jumnainsong, A., Wongwiwat, W., Duangchinda, T., Mongkolsapaya, J., Grimes, J.M., Screaton, G.R.
J.Immunol.
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