MetaCyc Pathway: superpathway of L-threonine biosynthesis in Shewanella oneidensis MR-1

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Reactions and Genes Tween 20 (C)
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Aspartate transaminase (in reverse):
oxaloacetate + L-glutamate→L-aspartate + 2-oxoglutarate (EC 2.6.1.1)
SO2350 (aspC-1) +0.0
SO2406 (aspC-2) -3.7
SO2483 +0.2
SO4343 -2.8
Aspartate kinase:
L-aspartate + ATP→L-aspartyl-4-phosphate + ADP (EC 2.7.2.4)
SO3415 (thrA) -2.3
SO3427 N.D.
SO3986 (lysC) -2.6
SO4055 (metL) +3.5
Aspartate-semialdehyde dehydrogenase (in reverse):
L-aspartyl-4-phosphate + NADPH + H+→L-aspartate 4-semialdehyde + NADP+ + phosphate (EC 1.2.1.11)
SO3070 (asd) N.D.
Homoserine dehydrogenase (in reverse):
L-aspartate 4-semialdehyde + NAD(P)H + H+→L-homoserine + NAD(P)+ (EC 1.1.1.3)
SO3415 (thrA) -2.3
SO4055 (metL) +3.5
Homoserine kinase:
L-homoserine + ATP→O-phospho-L-homoserine + ADP + H+ (EC 2.7.1.39)
SO3414 (thrB) -5.6
Threonine synthase:
O-phospho-L-homoserine + H2O→L-threonine + phosphate (EC 4.2.3.1)
SO3413 (thrC) -5.5

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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