MetaCyc Pathway: cholesterol degradation to androstenedione III (anaerobic) in Rhodosporidium toruloides IFO0880

Add experiment(s):


3-beta-hydroxy-Delta(5)-steroid dehydrogenase:
cholesterol + NAD+→cholest-5-en-3-one + NADH + H+
(EC 1.1.1.145)
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 + an oxidized unknown electron carrier + H2O→25-hydroxycholest-4-en-3-one + a reduced unknown two electron carrier (EC 1.17.99.10)
No genes
25-hydroxycholest-4-en-3-one→(25R)-26-hydroxycholest-4-en-3-one
No genes
(25R)-26-hydroxycholest-4-en-3-one + an oxidized unknown electron carrier→(25R)-26-oxocholest-4-en-3-one + a reduced unknown two electron carrier
No genes
(25R)-26-oxocholest-4-en-3-one + NAD+ + H2O→(25R)-3-oxocholest-4-en-26-oate + NADH + 2 H+
No genes
(25R)-3-oxocholest-4-en-26-oate[out]→(25R)-3-oxocholest-4-en-26-oate[in]
No genes
(25R)-3-oxocholest-4-en-26-oate + ATP + coenzyme A→(25R)-3-oxocholest-4-en-26-oyl-CoA + AMP + diphosphate (EC 6.2.1.42)
No genes
Alpha-methylacyl-CoA racemase (in reverse):
(25R)-3-oxocholest-4-en-26-oyl-CoA→(25S)-3-oxocholest-4-en-26-oyl-CoA
(EC 5.1.99.4)
mRNA_248 (8616)
(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
24-hydroxy-3-oxocholest-4-en-26-oyl-CoA→22-oxocholest-4-en-3-one + propanoyl-CoA
No genes
22-oxocholest-4-en-3-one + NAD+ + H2O→3-oxochol-4-en-24-oate + NADH + 2 H+
No genes
3-oxochol-4-en-24-oate + ATP + coenzyme A→3-oxochol-4-en-24-oyl-CoA + AMP + diphosphate
No genes
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→3,23-dioxo-23,24-bisnorchol-4-ene + acetyl-CoA
No genes
3,23-dioxo-23,24-bisnorchol-4-ene + NAD+ + H2O→3-oxo-23,24-bisnorchol-4-en-22-oate + NADH + 2 H+
No genes
3-oxo-23,24-bisnorchol-4-en-22-oate + ATP + coenzyme A→3-oxo-23,24-bisnorchol-4-en-22-oyl-CoA + AMP + diphosphate
No genes
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→androstenedione + propanoyl-CoA
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