Information on EC - 3-demethylubiquinol 3-O-methyltransferase

for references in articles please use BRENDA:EC2.1.1.64
Please wait a moment until all data is loaded. This message will disappear when all data is loaded.
EC Tree
     2 Transferases
         2.1 Transferring one-carbon groups
             2.1.1 Methyltransferases
       3-demethylubiquinol 3-O-methyltransferase
IUBMB Comments
This enzyme is involved in ubiquinone biosynthesis. Ubiquinones from different organisms have a different number of prenyl units (for example, ubiquinone-6 in Saccharomyces, ubiquinone-9 in rat and ubiquinone-10 in human), and thus the natural substrate for the enzymes from different organisms has a different number of prenyl units. However, the enzyme usually shows a low degree of specificity regarding the number of prenyl units. For example, the human COQ3 enzyme can restore biosynthesis of ubiquinone-6 in coq3 deletion mutants of yeast . The enzymes from yeast, Escherichia coli and rat also catalyse the methylation of 3,4-dihydroxy-5-all-trans-polyprenylbenzoate (a reaction that is classified as EC, polyprenyldihydroxybenzoate methyltransferase).
Specify your search results
Select one or more organisms in this record: ?
The expected taxonomic range for this enzyme is: Bacteria, Eukaryota, Archaea
2-octaprenyl-3-methyl-5-hydroxy-6-methoxy-1,4-benzoquinone methyltransferase, 5-demethylubiquinone-9 methyltransferase, 5-demethylubiquinone-9-methyltransferase, AtCOQ3, COQ3, Coq3 O-methyltransferase, O-methyltransferase, OMHMB methyltransferase, OMHMB-methyltransferase, S-adenosyl-L-methionine:2-octaprenyl-3-methyl-5-hydroxy-6-methoxy-1,4-benzoquinone-O-methyltransferase, more
S-adenosyl-L-methionine + 3-demethylubiquinol-n = S-adenosyl-L-homocysteine + ubiquinol-n
show the reaction diagram
Select items on the left to see more content.