MetaCyc Pathway: superpathway of L-lysine, L-threonine and L-methionine biosynthesis I in Pseudomonas putida KT2440

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Reactions and Genes L-Leucine (C)
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Aspartate transaminase (in reverse):
oxaloacetate + L-glutamate→L-aspartate + 2-oxoglutarate
(EC 2.6.1.1)
PP_0486 +0.1
PP_0858 +0.2
PP_1109 +0.1
PP_1872 -0.2
PP_2642 -0.1
PP_2948 +0.0
PP_3544 -0.1
PP_3750 +0.1
PP_3786 +0.1
PP_4197 +1.1
PP_5275 -0.1
PP_5342 +0.0
Aspartate kinase:
L-aspartate + ATP→L-aspartyl-4-phosphate + ADP
(EC 2.7.2.4)
PP_4473 N.D.
Aspartate-semialdehyde dehydrogenase (in reverse):
L-aspartyl-4-phosphate + NADPH + H+→L-aspartate 4-semialdehyde + NADP+ + phosphate
(EC 1.2.1.11)
PP_1147 +0.5
PP_1989 N.D.
PP_1992 +0.3
L-aspartate 4-semialdehyde + pyruvate→(2S,4S)-4-hydroxy-2,3,4,5-tetrahydrodipicolinate + H+ + H2O (EC 4.3.3.7)
PP_1237 -0.8
PP_2036 +0.3
PP_2639 -0.1
Homoserine dehydrogenase (in reverse):
L-aspartate 4-semialdehyde + NAD(P)H + H+→L-homoserine + NAD(P)+
(EC 1.1.1.3)
PP_0664 +0.2
PP_1470 N.D.
Homoserine kinase:
L-homoserine + ATP→O-phospho-L-homoserine + ADP + H+
(EC 2.7.1.39)
PP_0121 N.D.
Homoserine O-succinyltransferase:
L-homoserine + succinyl-CoA→O-succinyl-L-homoserine + coenzyme A
(EC 2.3.1.46)
No genes
(2S,4S)-4-hydroxy-2,3,4,5-tetrahydrodipicolinate + NAD(P)H + H+→(S)-2,3,4,5-tetrahydrodipicolinate + NAD(P)+ + H2O (EC 1.17.1.8)
PP_4725 N.D.
Cystathionine gamma-synthase:
O-succinyl-L-homoserine + L-cysteine→L-cystathionine + H+ + succinate
(EC 2.5.1.48)
PP_0659 +0.3
PP_2001 -2.6
PP_2528 +0.0
2,3,4,5-tetrahydropyridine-2,6-dicarboxylate N-succinyltransferase:
(S)-2,3,4,5-tetrahydrodipicolinate + succinyl-CoA + H2ON-succinyl-2-amino-6-ketopimelate + coenzyme A
(EC 2.3.1.117)
PP_1530 N.D.
Threonine synthase:
O-phospho-L-homoserine + H2O→L-threonine + phosphate
(EC 4.2.3.1)
PP_0662 -0.2
PP_1471 N.D.
Cysteine-S-conjugate beta-lyase:
L-cystathionine + H2O→L-homocysteine + ammonium + pyruvate
(EC 4.4.1.13)
No genes
Succinyldiaminopimelate transaminase (in reverse):
N-succinyl-2-amino-6-ketopimelate + L-glutamateN-succinyl-L,L-2,6-diaminopimelate + 2-oxoglutarate
(EC 2.6.1.17)
PP_0372 +0.2
PP_1588 -0.2
PP_4481 +0.6
5-methyltetrahydropteroyltriglutamate--homocysteine S-methyltransferase:
L-homocysteine + 5-methyltetrahydropteroyl tri-L-glutamate→L-methionine + tetrahydropteroyl tri-L-glutamate
(EC 2.1.1.14)
PP_2698 -0.4
PP_4637 +0.3
Methionine synthase:
L-homocysteine + a 5-methyltetrahydrofolate→L-methionine + a tetrahydrofolate
(EC 2.1.1.13)
PP_2375 -0.3
Succinyl-diaminopimelate desuccinylase:
N-succinyl-L,L-2,6-diaminopimelate + H2O→L,L-diaminopimelate + succinate
(EC 3.5.1.18)
PP_1525 N.D.
PP_3571 -0.2
Diaminopimelate epimerase:
L,L-diaminopimelate→meso-diaminopimelate
(EC 5.1.1.7)
PP_1022 -0.9
PP_3790 -0.2
PP_4042 -0.1
PP_5228 N.D.
PP_5351 -0.1
Diaminopimelate decarboxylase:
meso-diaminopimelate + H+→L-lysine + CO2
(EC 4.1.1.20)
PP_2077 +0.5
PP_5227 -0.2

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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