MetaCyc Pathway: superpathway of tetrahydrofolate biosynthesis and salvage in Echinicola vietnamensis KMM 6221, DSM 17526

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Reactions and Genes L-Serine (N)
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GTP cyclohydrolase I:
GTP + H2O→7,8-dihydroneopterin 3'-triphosphate + formate + H+
(EC 3.5.4.16)
Echvi_2136 N.D.
Methenyltetrahydrofolate cyclohydrolase:
a 5,10-methenyltetrahydrofolate + H2O→an N10-formyltetrahydrofolate + H+
(EC 3.5.4.9)
Echvi_4643 N.D.
Aminodeoxychorismate synthase:
chorismate + L-glutamine→4-amino-4-deoxychorismate + L-glutamate
(EC 2.6.1.85)
Echvi_0658 +0.4
Echvi_2333 +0.5
Echvi_2506 -2.4
Aminodeoxychorismate lyase:
4-amino-4-deoxychorismate→4-aminobenzoate + H+ + pyruvate
(EC 4.1.3.38)
Echvi_2832 +2.2
Phosphoribosylglycinamide formyltransferase:
an N10-formyltetrahydrofolate + N1-(5-phospho-β-D-ribosyl)glycinamide→a tetrahydrofolate + N2-formyl-N1-(5-phospho-β-D-ribosyl)glycinamide + H+
(EC 2.1.2.2)
Echvi_1470 N.D.
7,8-dihydroneopterin 3'-triphosphate + H2O→7,8-dihydroneopterin 3'-phosphate + diphosphate + H+ (EC 3.6.1.67)
Echvi_0501 +0.1
7,8-dihydroneopterin 3'-phosphate + H2O→D-erythro-7,8-dihydroneopterin + phosphate
Echvi_0501 +0.1
Dihydroneopterin aldolase:
D-erythro-7,8-dihydroneopterin→6-(hydroxymethyl)-7,8-dihydropterin + glycolaldehyde
(EC 4.1.2.25)
Echvi_0107 N.D.
2-amino-4-hydroxy-6-hydroxymethyldihydropteridine diphosphokinase:
6-(hydroxymethyl)-7,8-dihydropterin + ATP→(7,8-dihydropterin-6-yl)methyl diphosphate + AMP + H+
(EC 2.7.6.3)
Echvi_2784 N.D.
Dihydropteroate synthase:
(7,8-dihydropterin-6-yl)methyl diphosphate + 4-aminobenzoate→7,8-dihydropteroate + diphosphate
(EC 2.5.1.15)
Echvi_0143 N.D.
Dihydrofolate synthase:
7,8-dihydropteroate + ATP + L-glutamate→7,8-dihydrofolate monoglutamate + ADP + H+ + phosphate
(EC 6.3.2.12)
Echvi_3482 N.D.
Dihydrofolate reductase (in reverse):
a 7,8-dihydrofolate + NADPH + H+→a tetrahydrofolate + NADP+
(EC 1.5.1.3)
Echvi_1421 -0.0
Echvi_2448 N.D.
Echvi_2684 -0.1
Echvi_4291 +0.1
Echvi_4303 +0.3

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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