MetaCyc Pathway: spermidine biosynthesis II in Erwinia tracheiphila SCR3

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Aspartate kinase:
L-aspartate + ATP→L-aspartyl-4-phosphate + ADP (EC 2.7.2.4)
LU632_RS02610 (thrA)
LU632_RS19635
LU632_RS22375 (lysC)
Aspartate-semialdehyde dehydrogenase (in reverse):
L-aspartyl-4-phosphate + NADPH + H+→L-aspartate 4-semialdehyde + NADP+ + phosphate (EC 1.2.1.11)
LU632_RS01365 (asd)
LU632_RS07820
L-aspartate 4-semialdehyde + putrescine + NADPH + H+→carboxyspermidine + NADP+ + H2O (EC 1.5.1.43)
No genes
carboxyspermidine + H+→spermidine + CO2 (EC 4.1.1.96)
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