ENTRY EC 2.1.1.57
NAME mRNA (nucleoside-2'-O-)-methyltransferase
mRNA (adenosine-2'-O-)-methyltransferase
CLASS Transferases
Transferring one-carbon groups
Methyltransferases
SYSNAME S-Adenosyl-L-methionine:mRNA (nucleoside-2'-O-)-methyltransferase
REACTION S-Adenosyl-L-methionine + m7G(5')pppR-RNA =
S-Adenosyl-L-homocysteine +
m7G(5')pppRm-RNA (mRNA containing an 2'-O-methylpurine cap)
SUBSTRATE S-Adenosyl-L-methionine
m7G(5')pppR-RNA
PRODUCT S-Adenosyl-L-homocysteine
m7G(5')pppRm-RNA (mRNA containing an 2'-O-methylpurine cap)
COMMENT In the reaction given, R may be guanosine or adenosine. The
formation of a 2'-O-methyladenosine cap was formerly listed as
EC 2.1.1.58.
DBLINKS University of Geneva ENZYME DATA BANK: 2.1.1.57
WIT (What Is There) Metabolic Reconstruction: 2.1.1.57
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