MetaCyc Pathway: superpathway of L-citrulline metabolism in Escherichia coli BW25113

Add experiment(s):


Glutamate synthase (NADPH):
L-glutamine + H2O→L-glutamate + ammonia + H+ (EC 1.4.1.13; 1.4.1.14; 1.4.7.1; 2.6.1.85; 3.5.1.2; 3.5.1.38; 4.1.3.27; 4.3.2.10; 4.3.3.6; 6.3.4.2; 6.3.5.13; 6.3.5.2; 6.3.5.4; 6.3.5.5; 6.3.5.6; 6.3.5.7)
b0032 (carA)
b0033 (carB)
b0485 (ybaS)
b0674 (asnB)
b1263 (trpD)
b1264 (trpE)
b1524 (yneH)
b1812 (pabB)
b2468 (aegA)
b2507 (guaA)
b2611 (ypjD)
b2780 (pyrG)
b2887 (ygfT)
b3212 (gltB)
b3213 (gltD)
b3360 (pabA)
Carbamoyl-phosphate synthase (ammonia):
ammonium + 2 ATP + hydrogen carbonate→carbamoyl phosphate + 2 ADP + 2 H+ + phosphate (EC 6.3.4.16)
No genes
L-proline[in] + an electron-transfer quinone→(S)-1-pyrroline-5-carboxylate[in] + an electron-transfer quinol + H+[in] (EC 1.5.5.2)
b1014 (putA)
Glutamate 5-kinase:
L-glutamate + ATP→γ-L-glutamyl 5-phosphate + ADP (EC 2.7.2.11)
b0242 (proB)
(S)-1-pyrroline-5-carboxylate + H+ + H2O→L-glutamate 5-semialdehyde (spontaneous)
No genes
Glutamate-5-semialdehyde dehydrogenase (in reverse):
γ-L-glutamyl 5-phosphate + NADPH + H+→L-glutamate 5-semialdehyde + NADP+ + phosphate (EC 1.2.1.41)
b0243 (proA)
Ornithine aminotransferase (in reverse):
L-glutamate + L-glutamate 5-semialdehyde→L-ornithine + 2-oxoglutarate (EC 2.6.1.13)
No genes
Ornithine carbamoyltransferase:
L-ornithine + carbamoyl phosphate→L-citrulline + H+ + phosphate (EC 2.1.3.3)
b0273 (argF)
b4254 (argI)
Argininosuccinate synthase:
L-citrulline + ATP + L-aspartate→L-arginino-succinate + AMP + diphosphate + H+ (EC 6.3.4.5)
b3172 (argG)
Argininosuccinate lyase:
L-arginino-succinate→L-arginine + fumarate (EC 4.3.2.1)
b3960 (argH)
Arginase:
L-arginine + H2O→L-ornithine + urea (EC 3.5.3.1)
No genes
Nitric-oxide synthase:
2 L-arginine + 3 NADPH + 4 dioxygen + H+→2 L-citrulline + 3 NADP+ + 2 nitric oxide + 4 H2O (EC 1.14.13.39)
No genes

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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