Ornithine degradation serves two functions. First it can be a source of putrescine a diamine required for bacterial cell growth. Putrescine can be further degraded to 4-aminobutyrate which can ultimately be converted to succinate for energy production. Website=www.biocyc.org/Ecoli/Pathways/ free text=Voet and Voet (textbook) Biochemistry 4.0 inactive inactive inactive inactive inactive inactive inactive inactive inactive inactive inactive inactive inactive Long Name: ornithine Synonym: Synonym not specified Accession: S03888 inside SIMPLE_MOLECULE ornithine Long Name: CO2 Synonym: Synonym not specified Accession: S03887 inside SIMPLE_MOLECULE CO_sub_2 Long Name: putrescine Synonym: Synonym not specified Accession: S03891 inside SIMPLE_MOLECULE putrescine Long Name: ketoglutarate Synonym: Synonym not specified Accession: S03892 inside SIMPLE_MOLECULE ketoglutarate Long Name: glutamate Synonym: Synonym not specified Accession: S03893 inside SIMPLE_MOLECULE glutamate Long Name: 4-amino-butyraldehyde Synonym: Synonym not specified Accession: S03890 inside SIMPLE_MOLECULE 4-amino-butyraldehyde Long Name: H2O Synonym: Synonym not specified Accession: S03894 inside SIMPLE_MOLECULE H_sub_2_endsub_O Long Name: NAD Synonym: Synonym not specified Accession: S03885 inside SIMPLE_MOLECULE NAD Long Name: NADH Synonym: Synonym not specified Accession: S03886 inside SIMPLE_MOLECULE NADH Long Name: 4-aminobutyrate Synonym: Synonym not specified Accession: S03889 inside SIMPLE_MOLECULE 4-aminobutyrate Long Name: Ornithine decarboxylase Synonym: Synonym not specified Accession: P03053 inside PROTEIN p1 Long Name: Putrescine aminotransferase Synonym: Synonym not specified Accession: P03054 inside PROTEIN p2 Long Name: Aminobutyraldehyde dehydrogenase Synonym: Synonym not specified Accession: P03055 inside PROTEIN p3 STATE_TRANSITION 0.33333333333333326,-2.220446049250313E-16 0.6666666666666665,-2.220446049250313E-16 a1 a3 a2 a11 STATE_TRANSITION 0.33333333333333326,0.0 0.6666666666666667,-2.220446049250313E-16 a3 a4 a6 a5 a12 STATE_TRANSITION 0.3333333333333335,0.0 0.666666666666667,-2.220446049250313E-16 a6 a7 a8 a10 a9 a13