MetaCyc Pathway: purine nucleobases degradation II (anaerobic) in Escherichia coli BL21

Add experiment(s):


Guanine deaminase:
guanine + H+ + H2O→xanthine + ammonium
(EC 3.5.4.3)
ECD_02716
Xanthine dehydrogenase:
hypoxanthine + NAD+ + H2O→6,8-dihydroxypurine + NADH + H+
(EC 1.17.1.4)
ECD_00243
ECD_00244
ECD_02699
ECD_02700
ECD_02701
Xanthine dehydrogenase:
purine + NAD+ + H2O→8-hydroxypurine + NADH + H+
(EC 1.17.1.4)
ECD_00243
ECD_00244
ECD_02699
ECD_02700
ECD_02701
8-hydroxypurine + NAD+ + H2O→6,8-dihydroxypurine + NADH + H+
No genes
Xanthine dehydrogenase:
6,8-dihydroxypurine + NAD+ + H2O→urate + NADH + H+
(EC 1.17.1.4)
ECD_00243
ECD_00244
ECD_02699
ECD_02700
ECD_02701
Xanthine dehydrogenase (in reverse):
urate + NADH + H+→xanthine + NAD+ + H2O
(EC 1.17.1.4)
ECD_00243
ECD_00244
ECD_02699
ECD_02700
ECD_02701
xanthine + H2O→5-ureidoimidazole-4-carboxylate + H+
No genes
5-ureidoimidazole-4-carboxylate + 2 H+ + H2O→5-aminoimidazole-4-carboxylate + CO2 + ammonium
No genes
5-aminoimidazole-4-carboxylate→CO2 + 4-aminoimidazole
No genes
Aminoimidazolase:
4-aminoimidazole + H+ + H2O→3,5-dihydro-4H-imidazol-4-one + ammonium
(EC 3.5.4.8)
No genes
3,5-dihydro-4H-imidazol-4-one + H2ON-formimino-glycine (spontaneous)
No genes
Glycine formimidoyltransferase (in reverse):
N-formimino-glycine + a tetrahydrofolate→5-formimidoyltetrahydrofolate + glycine
(EC 2.1.2.4)
No genes
Formimidoyltetrahydrofolate cyclodeaminase:
5-formimidoyltetrahydrofolate + 2 H+→a 5,10-methenyltetrahydrofolate + ammonium
(EC 4.3.1.4)
No genes
Methenyltetrahydrofolate cyclohydrolase:
a 5,10-methenyltetrahydrofolate + H2O→an N10-formyltetrahydrofolate + H+
(EC 3.5.4.9)
ECD_00479
Methylenetetrahydrofolate dehydrogenase (NADP(+)) (in reverse):
a 5,10-methenyltetrahydrofolate + NADPH→a 5,10-methylenetetrahydrofolate + NADP+
(EC 1.5.1.5)
ECD_00479
Formyltetrahydrofolate deformylase:
an N10-formyltetrahydrofolate + H2O→formate + H+ + a tetrahydrofolate
(EC 3.5.1.10)
ECD_01208
Glycine hydroxymethyltransferase (in reverse):
glycine + a 5,10-methylenetetrahydrofolate + H2O→L-serine + a tetrahydrofolate
(EC 2.1.2.1)
ECD_02443
formate + NAD+→CO2 + NADH (EC 1.17.1.9)
ECD_01434
ECD_01457
ECD_01459
ECD_03777
ECD_03778
ECD_03780
L-serine ammonia-lyase:
L-serine→2-aminoprop-2-enoate + H2O
(EC 4.3.1.17)
ECD_01784
ECD_02642
ECD_02979
Tryptophanase:
2-aminoprop-2-enoate→2-iminopropanoate
(spontaneous) (EC 4.1.99.1; 4.1.99.2; 4.3.1.13; 4.3.1.17; 4.3.1.18; 4.3.3.8; 4.4.1.1; 4.4.1.13; 4.4.1.15; 4.4.1.25; 4.4.1.28; 4.4.1.35; 4.5.1.2)
ECD_01784
ECD_02276
ECD_02642
ECD_02979
ECD_03592
2-iminopropanoate + H2O→pyruvate + ammonium (spontaneous) (EC 3.5.99.10; 4.1.99.1; 4.1.99.2; 4.3.1.13; 4.3.1.17; 4.3.1.18; 4.3.3.8; 4.4.1.1; 4.4.1.13; 4.4.1.15; 4.4.1.25; 4.4.1.28; 4.4.1.35; 4.5.1.2)
ECD_01784
ECD_02276
ECD_02642
ECD_02979
ECD_02980
ECD_03592
ECD_04111
Pyruvate synthase:
pyruvate + coenzyme A + 2 an oxidized ferredoxin [iron-sulfur] cluster→CO2 + acetyl-CoA + H+ + 2 a reduced ferredoxin [iron-sulfur] cluster
(EC 1.2.7.1)
ECD_01349
Phosphate acetyltransferase:
acetyl-CoA + phosphate→acetyl phosphate + coenzyme A
(EC 2.3.1.8)
ECD_02222
ECD_02349
Acetate kinase (in reverse):
acetyl phosphate + ADP→acetate + ATP
(EC 2.7.2.1; 2.7.2.15)
ECD_01820
ECD_02221
ECD_02351
ECD_02352
ECD_02982

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