Reading the map

Metabolite; its structure appears as you zoom in

Reaction, arrow toward the product

Cofactors and co-substrates are written beside the reaction when you zoom in

Dashed ring: a copy of a widely shared molecule or cofactor in another territory or pathway

Compartment transfer of the molecule it is linked to

Binding, release or complex event; its proteins are named in its details

Outline: reactions mostly in the mitochondrion

Arrows follow Reactome's curated reaction direction.

MSMO1 oxidizes 4,4-diMe-5-cholest-8-en-3-ol to 4a-carboxy-4b-me-5a-cholest-8-en-3b-ol

4,4-diMe-5-cholest-8-en-3-ol + 6 CYP450:Fe2+ + 5 H+ + 3 O2 → 4a-carboxy-4b-me-5a-cholest-8-en-3b-ol + 6 CYP450:Fe3+ + 4 H2O

4,4-diMe-5-cholest-8-en-3-olCHEBI:87044, C29H50O, endoplasmic reticulum membrane
6 CYP450:Fe2+R-HSA-8957354, endoplasmic reticulum membrane
5 H+CHEBI:15378, H, cytosol
3 O2CHEBI:15379, O2, cytosol

4a-carboxy-4b-me-5a-cholest-8-en-3b-olCHEBI:87047, C29H47O3, endoplasmic reticulum membrane
6 CYP450:Fe3+R-HSA-8957351, endoplasmic reticulum membrane
4 H2OCHEBI:15377, H2O, cytosol

C-4 methylsterol oxidase activity of MSMO1 [endoplasmic reticulum membrane]EC 1.14.18.9; UniProt Q15800