KEGG   REACTION: R00636
Entry
R00636                      Reaction                               
Name
2-oxo-acid carboxy-lyase (aldehyde-forming)
Definition
2-Oxo acid <=> Aldehyde + CO2
Equation
Comment
general reaction (see R00224)
Reaction class
RC00343  C00071_C00161
Enzyme
Brite
Enzymatic reactions [BR:br08201]
 4. Lyase reactions
  4.1  Carbon-carbon lyases
   4.1.1  Carboxy-lyases
    4.1.1.1
     R00636  2-Oxo acid <=> Aldehyde + CO2
IUBMB reaction hierarchy [BR:br08202]
 4. Lyase reactions
  4.1.1.1
   R00636  2-Oxo acid <=> Aldehyde
Other DBs
RHEA: 11631
LinkDB

KEGG   REACTION: R00224
Entry
R00224                      Reaction                               
Name
pyruvate carboxy-lyase (acetaldehyde-forming)
Definition
Pyruvate <=> Acetaldehyde + CO2
Equation
Comment
TPP-dependent enzymatic reaction (see R00014+R00755)
Reaction class
RC01194  C00022_C00084
Enzyme
Brite
Enzymatic reactions [BR:br08201]
 4. Lyase reactions
  4.1  Carbon-carbon lyases
   4.1.1  Carboxy-lyases
    4.1.1.1
     R00224  Pyruvate <=> Acetaldehyde + CO2
IUBMB reaction hierarchy [BR:br08202]
 4. Lyase reactions
  4.1.1.1
   R00636  2-Oxo acid <=> Aldehyde
    R00224  Pyruvate <=> Acetaldehyde
Other DBs
RHEA: 45487
LinkDB

KEGG   REACTION: R00014
Entry
R00014                      Reaction                               
Name
pyruvate:thiamin diphosphate acetaldehydetransferase (decarboxylating)
Definition
Pyruvate + Thiamin diphosphate <=> 2-(alpha-Hydroxyethyl)thiamine diphosphate + CO2
Equation
Comment
2-oxoglutarate dehydrogenase complex: pyruvate dehydrogenase (see R01699), subsequently R03270
TPP-dependent enzymatic reaction (see R00006), subsequently R03050
TPP-dependent enzymatic reaction (see R00226), subsequently R04672
TPP-dependent enzymatic reaction (see R00224), subsequently R00755
TPP-dependent enzymatic reaction (see R08648), subsequently R04673
Reaction class
RC00027  C00068_C05125
RC02744  C00022_C05125
Enzyme
1.2.4.1         2.2.1.6         4.1.1.1
Pathway
rn00010  Glycolysis / Gluconeogenesis
rn00020  Citrate cycle (TCA cycle)
rn00620  Pyruvate metabolism
rn00785  Lipoic acid metabolism
Module
M00307  Pyruvate oxidation, pyruvate => acetyl-CoA
Brite
Enzymatic reactions [BR:br08201]
 1. Oxidoreductase reactions
  1.2  Acting on the aldehyde or oxo group of donors
   1.2.4  With a disulfide as acceptor
    1.2.4.1
     R00014  Pyruvate + Thiamin diphosphate <=> 2-(alpha-Hydroxyethyl)thiamine diphosphate + CO2
 2. Transferase reactions
  2.2  Transferring aldehyde or ketonic groups
   2.2.1  Transketolases and transaldolases
    2.2.1.6
     R00014  Pyruvate + Thiamin diphosphate <=> 2-(alpha-Hydroxyethyl)thiamine diphosphate + CO2
 4. Lyase reactions
  4.1  Carbon-carbon lyases
   4.1.1  Carboxy-lyases
    4.1.1.1
     R00014  Pyruvate + Thiamin diphosphate <=> 2-(alpha-Hydroxyethyl)thiamine diphosphate + CO2
Orthology
K00161  pyruvate dehydrogenase E1 component subunit alpha [EC:1.2.4.1]
K00162  pyruvate dehydrogenase E1 component subunit beta [EC:1.2.4.1]
K00163  pyruvate dehydrogenase E1 component [EC:1.2.4.1]
K01568  pyruvate decarboxylase [EC:4.1.1.1]
K01652  acetolactate synthase I/II/III large subunit [EC:2.2.1.6]
K01653  acetolactate synthase I/III small subunit [EC:2.2.1.6]
K11258  acetolactate synthase II small subunit [EC:2.2.1.6]
LinkDB

KEGG   REACTION: R00755
Entry
R00755                      Reaction                               
Definition
Acetaldehyde + Thiamin diphosphate <=> 2-(alpha-Hydroxyethyl)thiamine diphosphate
Equation
Comment
TPP-dependent enzymatic reaction (see R00224), following after R00014
Reaction class
RC00027  C00068_C05125
RC00375  C00084_C05125
Enzyme
Pathway
rn00010  Glycolysis / Gluconeogenesis
rn01100  Metabolic pathways
Brite
Enzymatic reactions [BR:br08201]
 4. Lyase reactions
  4.1  Carbon-carbon lyases
   4.1.1  Carboxy-lyases
    4.1.1.1
     R00755  Acetaldehyde + Thiamin diphosphate <=> 2-(alpha-Hydroxyethyl)thiamine diphosphate
Orthology
K01568  pyruvate decarboxylase [EC:4.1.1.1]
LinkDB

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