COQ3 methylates DHDB
DHDB + AdoMet → MHDB + AdoHcy + H+
- Reactome
- R-HSA-2162193
- Compartment
- mitochondrial matrix
- Rhea
- RHEA:44492, RHEA:44493
Inputs
- DHDBCHEBI:62793, C57H85O4, mitochondrial inner membrane
- AdoMetCHEBI:59789, C15H23N6O5S, mitochondrial matrix
Outputs
- MHDBCHEBI:62796, C58H87O4, mitochondrial inner membrane
- AdoHcyCHEBI:57856, C14H20N6O5S, mitochondrial matrix
- H+CHEBI:15378, H, mitochondrial matrix
Catalysed by
- polyprenyldihydroxybenzoate methyltransferase activity of COQ3:COQ4:COQ5:COQ6:COQ7:COQ9 [mitochondrial inner membrane]EC 2.1.1.114
Literature
- Isolation and functional expression of human COQ3, a gene encoding a methyltransferase required for ubiquinone biosynthesis J Biol Chem, 2000
- Structural and biochemical studies reveal UbiG/Coq3 as a class of novel membrane-binding proteins Biochem J, 2015
- In vitro construction of the COQ metabolon unveils the molecular determinants of coenzyme Q biosynthesis Nat Catal, 2024