Pyrimidine ribonucleotides can be synthesize in two ways, de novo biosynthesis and salvaging pathways. In salvaging pathways nucleosides from RNA and DNA breakdown can reenter pyrimidine ribonucleotide de novo biosynthesis. 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 inactive inactive inactive inactive inactive inactive inactive inactive inactive inactive inactive inactive inactive inactive inactive inactive inactive inactive inactive Long Name: cytosine Synonym: Synonym not specified Accession: S04144 inside SIMPLE_MOLECULE cytosine Long Name: H2O Synonym: Synonym not specified Accession: S04147 inside SIMPLE_MOLECULE H_sub_2_endsub_O Long Name: NH3 Synonym: Synonym not specified Accession: S04141 inside SIMPLE_MOLECULE NH_sub_3 Long Name: uracil Synonym: Synonym not specified Accession: S04149 inside SIMPLE_MOLECULE uracil Long Name: PRPP Synonym: Synonym not specified Accession: S04143 inside SIMPLE_MOLECULE PRPP Long Name: PPi Synonym: Synonym not specified Accession: S04155 inside SIMPLE_MOLECULE PP_sub_i Long Name: UMP Synonym: Synonym not specified Accession: S04157 inside SIMPLE_MOLECULE UMP Long Name: uridine Synonym: Synonym not specified Accession: S04153 inside SIMPLE_MOLECULE uridine Long Name: ribose-1-phosphate Synonym: Synonym not specified Accession: S04152 inside SIMPLE_MOLECULE ribose-1-phosphate Long Name: PO4 Synonym: Synonym not specified Accession: S04151 inside SIMPLE_MOLECULE PO_sub_4 Long Name: GTP Synonym: Synonym not specified Accession: S04150 inside SIMPLE_MOLECULE GTP Long Name: GDP Synonym: Synonym not specified Accession: S04142 inside SIMPLE_MOLECULE GDP Long Name: cytidine Synonym: Synonym not specified Accession: S04146 inside SIMPLE_MOLECULE cytidine Long Name: CMP Synonym: Synonym not specified Accession: S04140 inside SIMPLE_MOLECULE CMP Long Name: CDP Synonym: Synonym not specified Accession: S04156 inside SIMPLE_MOLECULE CDP Long Name: CTP Synonym: Synonym not specified Accession: S04148 inside SIMPLE_MOLECULE CTP Long Name: ATP Synonym: Synonym not specified Accession: S04145 inside SIMPLE_MOLECULE ATP Long Name: ADP Synonym: Synonym not specified Accession: S04154 inside SIMPLE_MOLECULE ADP Long Name: Cytosine deaminase Synonym: Synonym not specified Accession: P03155 inside PROTEIN p1 Long Name: Uridine phosphorylase Synonym: Synonym not specified Accession: P03152 inside PROTEIN p2 Long Name: Uridine kinase Synonym: Synonym not specified Accession: P03150 inside PROTEIN p3 Long Name: Uracil phosphoribosyltransferase Synonym: Synonym not specified Accession: P03151 inside PROTEIN p4 Long Name: Cytidine deaminase Synonym: Synonym not specified Accession: P03154 inside PROTEIN p5 Long Name: Cytidine kinase Synonym: Synonym not specified Accession: P03149 inside PROTEIN p6 Long Name: Cytidylate kinase Synonym: Synonym not specified Accession: P03153 inside PROTEIN p7 Long Name: CDP kinase Synonym: Synonym not specified Accession: P03156 inside PROTEIN p8 STATE_TRANSITION 0.33333333333333337,-2.220446049250313E-16 0.6666666666666666,-4.440892098500626E-16 a1 a2 a4 a3 a25 STATE_TRANSITION 0.33333333333333315,-1.1102230246251565E-16 0.6666666666666664,-1.1102230246251565E-16 a4 a5 a7 a6 a26 STATE_TRANSITION 0.3333333333333335,0.0 0.6666666666666667,0.0 a8 a10 a4 a9 a28 STATE_TRANSITION 0.3333333333333335,-2.220446049250313E-16 0.6666666666666667,-2.220446049250313E-16 a8 a11 a7 a12 a27 STATE_TRANSITION 0.33333333333333304,-2.220446049250313E-16 0.6666666666666667,2.220446049250313E-16 a15 a14 a8 a13 a29 STATE_TRANSITION 0.3333333333333335,0.0 0.6666666666666667,-8.881784197001252E-16 a15 a16 a18 a17 a30 STATE_TRANSITION 0.33333333333333304,-8.881784197001252E-16 0.666666666666667,0.0 a18 a23 a19 a24 a31 a31 STATE_TRANSITION 0.3333333333333339,0.0 0.6666666666666665,-8.881784197001252E-16 a19 a21 a20 a22 a32