AC   PRU00922;
DC   Domain;
c?   <Length>=756> and <Length<=1134>
TR   PROSITE; PS51589; SAM_MT56_VP3; 1; level=0
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Names: Viral protein 3 containing mRNA (guanine-N(7))-methyltransferase.
Function: mRNA (guanine-N(7))-methyltransferase (EC 2.1.1.56) is an enzyme
 that transfers a methyl group from S-adenosyl-L-methionine (SAM) to
 G(5')pppR-RNA to form m(7)G(5')pppR-RNA and S-adenosyl-L-homocysteine.
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DE   + RecName: EC=2.1.1.56;
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CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=a 5'-end (5'-triphosphoguanosine)-ribonucleoside in mRNA + S-
CC         adenosyl-L-methionine = a 5'-end (N(7)-methyl 5'-
CC         triphosphoguanosine)-ribonucleoside in mRNA + S-adenosyl-L-
CC         homocysteine; Xref=Rhea:RHEA:67008, Rhea:RHEA-COMP:17166, Rhea:RHEA-
CC         COMP:17167, ChEBI:CHEBI:57856, ChEBI:CHEBI:59789, ChEBI:CHEBI:156461,
CC         ChEBI:CHEBI:167617; EC=2.1.1.56;
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GO   GO:0004482; F:mRNA 5'-cap (guanine-N7-)-methyltransferase activity
GO   GO:0032259; P:methylation
GO   GO:0046500; P:S-adenosylmethionine metabolic process
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KW   Methyltransferase
KW   S-adenosyl-L-methionine
KW   Transferase
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Chop: Nter=0; Cter=0;
Size: unlimited;
Related: None;
Repeats: 1;
Topology: Undefined;
Example: Q65526;
Scope:
 Viruses
Comments: None;
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# Revision 1.16 2024/01/11
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