Enzyme of the Day

Each day Apimba highlights one enzyme from our curated database of biochemical catalysts. The selection is deterministic for the day, so everyone sees the same enzyme until midnight UTC.

3-demethoxyubiquinol 3-hydroxylase

EC Number: 1.14.99.60

Reaction: 6-methoxy-3-methyl-2-(all-trans-polyprenyl)-1,4-benzoquinol + a reduced acceptor + O2 = 3-demethylubiquinol + acceptor + H2O

Systematic name: 6-methoxy-3-methyl-2-(all-trans-polyprenyl)-1,4-benzoquinol,acceptor:oxygen oxidoreductase (5-hydroxylating)

Other names: 6-methoxy-3-methyl-2-(all-trans-polyprenyl)-1,4-benzoquinol 5-hydroxylase; COQ7 (gene name); clk-1 (gene name); ubiF (gene name)

Comments: The enzyme catalyses the last hydroxylation reaction during the biosynthesis of ubiquinone.

References: BRENDA, EXPASY, IUBMB, KEGG

Enzyme of the Day for July 6, 2026. Full view · Search database · Wiki search

Search the enzyme database