TMP, (d)UMP, uridine 2' monophosphate, or uridine 3'-monophosphate + H2O => thymidine, deoxyuridine, or uridine + orthophosphate [NT5M]
type: Restriction
  on property: BFO_0000066
  some values from: GO_0005759
type: GO_0008253
BFO_0000050: Pyrimidine catabolism

CMP or TMP or UMP + H2O => cytidine, thymidine, or uridine + orthophosphate [NT5E]
type: Restriction
  on property: BFO_0000066
  some values from: GO_0005886
type: GO_0008253
BFO_0000050: Pyrimidine catabolism

(d)CMP, TMP, or (d)UMP + H2O => (deoxy)cytidine, thymidine, or (deoxy)uridine + orthophosphate [NT5C3]
type: Restriction
  on property: BFO_0000066
  some values from: GO_0005829
type: GO_0008253
BFO_0000050: Pyrimidine catabolism

(d)CMP, TMP, or (d)UMP + H2O => (deoxy)cytidine, thymidine, or (deoxy)uridine + orthophosphate [NT5C1A]
type: Restriction
  on property: BFO_0000066
  some values from: GO_0005829
type: GO_0008253
BFO_0000050: Pyrimidine catabolism

TMP, uridine 2', 3', or 5' monophosphates, or deoxyuridine 3' or 5' monophosphates + H2O => thymidine or (deoxy)uridine + orthophosphate [NT5C]
type: Restriction
  on property: BFO_0000066
  some values from: GO_0005829
type: GO_0008253
BFO_0000050: Pyrimidine catabolism

(deoxy)uridine + orthophosphate <=> uracil + (deoxy)ribose 1-phosphate [UPP]
type: Restriction
  on property: BFO_0000066
  some values from: GO_0005829
type: GO_0004850
BFO_0000050: Pyrimidine catabolism

thymidine or deoxyuridine + orthophosphate <=> thymine or uracil + 2-deoxy-D-ribose 1-phosphate [TYMP]
type: Restriction
  on property: BFO_0000066
  some values from: GO_0005829
type: GO_0016763
BFO_0000050: Pyrimidine catabolism

reduction of uracil to form dihydrouracil
type: Restriction
  on property: BFO_0000066
  some values from: GO_0005829
type: GO_0017113
BFO_0000050: Pyrimidine catabolism
directly activates: 5,6-dihydrouracil + H2O => beta-ureidopropionate
directly activates: Catalysis2692
label: uracil + NADPH + H+ => 5,6-dihydrouracil + NADP+

5,6-dihydrouracil + H2O => beta-ureidopropionate
type: Restriction
  on property: BFO_0000066
  some values from: GO_0005829
type: GO_0004157
BFO_0000050: Pyrimidine catabolism
directly activates: beta-ureidopropionate + H2O => beta-alanine + NH4+ + CO2
directly activates: Catalysis2693
label: conversion of 5,6-dihydrouracil to 3-ureidopropionate

beta-ureidopropionate + H2O => beta-alanine + NH4+ + CO2
type: Restriction
  on property: BFO_0000066
  some values from: GO_0005829
type: GO_0003837
BFO_0000050: Pyrimidine catabolism
directly activates: Mitochondrial uptake of beta-alanine
directly activates: BiochemicalReaction5735
directly activates: Catalysis2892
directly activates: Control482
directly activates: Modulation30
label: conversion of 3-ureidopropionate to beta-alanine

Mitochondrial uptake of beta-alanine
type: GO_0003674
BFO_0000050: Pyrimidine catabolism
directly activates: beta-alanine + pyruvate => 3-oxopropanoate + alanine
directly activates: Catalysis2694

beta-alanine + pyruvate => 3-oxopropanoate + alanine
type: Restriction
  on property: BFO_0000066
  some values from: GO_0005759
type: GO_0016223
BFO_0000050: Pyrimidine catabolism

reduction of thymine to form 5,6-Dihydrothymine
type: Restriction
  on property: BFO_0000066
  some values from: GO_0005829
type: GO_0017113
BFO_0000050: Pyrimidine catabolism
directly activates: 5,6-dihydrothymine + H2O => beta-ureidoisobutyrate
directly activates: Catalysis2696
label: thymine + NADPH + H+ => 5,6-dihydrothymine + NADP+

5,6-dihydrothymine + H2O => beta-ureidoisobutyrate
type: Restriction
  on property: BFO_0000066
  some values from: GO_0005829
type: GO_0004157
BFO_0000050: Pyrimidine catabolism
directly activates: beta-ureidoisobutyrate + H2O => 3-aminoisobutyrate + NH4+ + CO2
directly activates: Catalysis2697
label: conversion of 5,6-Dihydrothymine to 3-Ureidoisobutyrate

beta-ureidoisobutyrate + H2O => 3-aminoisobutyrate + NH4+ + CO2
type: Restriction
  on property: BFO_0000066
  some values from: GO_0005829
type: GO_0003837
BFO_0000050: Pyrimidine catabolism
directly activates: Mitochondrial uptake of (R)-3-aminoisobutyric acid
label: conversion of 3-Ureidoiosbutyrate to 3-Aminoisobutyrate

Mitochondrial uptake of (R)-3-aminoisobutyric acid
type: GO_0003674
BFO_0000050: Pyrimidine catabolism
directly activates: (R)-3-aminoisobutyric acid + pyruvate => 2-methyl-3-oxopropanoate + alanine
directly activates: Catalysis2698

(R)-3-aminoisobutyric acid + pyruvate => 2-methyl-3-oxopropanoate + alanine
type: Restriction
  on property: BFO_0000066
  some values from: GO_0005759
type: GO_0047305
BFO_0000050: Pyrimidine catabolism

Pyrimidine catabolism
type: GO_0008150