MetaCyc Pathway: cholesterol degradation to androstenedione I (cholesterol oxidase) in Rhodosporidium toruloides IFO0880

Add experiment(s):


Cholesterol oxidase:
cholesterol + dioxygen→cholest-5-en-3-one + hydrogen peroxide
(EC 1.1.3.6)
No genes
Cholesterol oxidase:
cholest-5-en-3-one→cholest-4-en-3-one
(EC 1.1.3.6; 5.3.3.1)
No genes
cholest-4-en-3-one + dioxygen + 2 H+ + 2 a reduced ferredoxin [iron-sulfur] cluster→(25S)-26-hydroxycholest-4-en-3-one + 2 an oxidized ferredoxin [iron-sulfur] cluster + H2O (EC 1.14.15.29)
No genes
(25S)-26-hydroxycholest-4-en-3-one + dioxygen + 2 H+ + 2 a reduced ferredoxin [iron-sulfur] cluster→(25S)-26-oxocholest-4-en-3-one + 2 an oxidized ferredoxin [iron-sulfur] cluster + 2 H2O (EC 1.14.15.29)
No genes
(25S)-26-oxocholest-4-en-3-one + dioxygen + H+ + 2 a reduced ferredoxin [iron-sulfur] cluster→(25S)-3-oxocholest-4-en-26-oate + 2 an oxidized ferredoxin [iron-sulfur] cluster + H2O (EC 1.14.15.29)
No genes
(25S)-3-oxocholest-4-en-26-oate + ATP + coenzyme A→(25S)-3-oxocholest-4-en-26-oyl-CoA + AMP + diphosphate (EC 6.2.1.42)
No genes
(25S)-3-oxocholest-4-en-26-oyl-CoA + an oxidized unknown electron carrier→3-oxocholest-4,24-dien-26-oyl-CoA + a reduced unknown two electron carrier
No genes
3-oxocholest-4,24-dien-26-oyl-CoA + H2O→24-hydroxy-3-oxocholest-4-en-26-oyl-CoA
No genes
3-hydroxyacyl-CoA dehydrogenase:
24-hydroxy-3-oxocholest-4-en-26-oyl-CoA + NAD+→3,24-dioxocholest-4-en-26-oyl-CoA + NADH + H+
(EC 1.1.1.35)
mRNA_2835 (11203)
Propanoyl-CoA C-acyltransferase (in reverse):
3,24-dioxocholest-4-en-26-oyl-CoA + coenzyme A→3-oxochol-4-en-24-oyl-CoA + propanoyl-CoA
(EC 2.3.1.176)
mRNA_5687 (14055)
3-oxochol-4-en-24-oyl-CoA + an oxidized unknown electron carrier→3-oxochol-4,22-dien-24-oyl-CoA + a reduced unknown two electron carrier
No genes
3-oxochol-4,22-dien-24-oyl-CoA + H2O→22-hydroxy-3-oxochol-4-en-24-oyl-CoA
No genes
22-hydroxy-3-oxochol-4-en-24-oyl-CoA + NAD+→3,22-dioxochol-4-en-24-oyl-CoA + NADH + H+
No genes
Acetyl-CoA C-acyltransferase (in reverse):
3,22-dioxochol-4-en-24-oyl-CoA + coenzyme A→acetyl-CoA + 3-oxo-23,24-bisnorchol-4-en-22-oyl-CoA
(EC 2.3.1.16)
mRNA_5445 (13813)
mRNA_5687 (14055)
mRNA_6860 (15228)
mRNA_310 (8678)
mRNA_517 (8885)
mRNA_697 (9065)
3-oxo-23,24-bisnorchol-4-en-22-oyl-CoA + an oxidized unknown electron carrier→3-oxo-23,24-bisnorchol-4,17(20)-dien-22-oyl-CoA + a reduced unknown two electron carrier
No genes
3-oxo-23,24-bisnorchol-4,17(20)-dien-22-oyl-CoA + H2O→17-hydroxy-3-oxo-4-pregnane-20-carboxyl-CoA
No genes
17-hydroxy-3-oxo-4-pregnane-20-carboxyl-CoA→propanoyl-CoA + androstenedione
No genes

Links:

Candidate genes for each reaction are identified from best hits to MetaCyc; by matching EC numbers (which are assigned by TIGRFam, SEED, or best hits to KEGG); or by matching SEED roles to KEGG reactions to MetaCyc reactions. See the "Protein" tab of each gene for more information