BRENDA: BR47783
KEGG: R03471
MetaCyc: OHMETPYRKIN-RXN
SABIO-RK: 3265
BRENDA: BR48075
KEGG: R04509
MetaCyc: PYRIMSYN3-RXN
BRENDA: BR49773
KEGG: R03472
MetaCyc: PYRIMSYN1-RXN
KEGG: R10686
MetaCyc: RXN0-3543
MetaCyc: RXN3O-3797