M00051  De novo pyrimidine biosynthesis, glutamine (+ PRPP) => UMP [PATH:map00240 map01240 map01100]
       M00052  Pyrimidine ribonucleotide biosynthesis, UMP => UDP/UTP,CDP/CTP [PATH:map00240 map01232 map01240 map01100]
       M00938  Pyrimidine deoxyribonucleotide biosynthesis, UDP => dTTP [PATH:map00240 map01232 map01100]
       M00046  Pyrimidine degradation, uracil => beta-alanine, thymine => 3-aminoisobutanoate [PATH:map00240 map00410 map00770 map01100]
       M00939  Pyrimidine degradation, uracil => 3-hydroxypropanoate [PATH:map00240 map01100]