KEGG   REACTION: R03223
Entry
R03223                      Reaction                               
Name
2-methyl-4-amino-5-hydroxymethylpyrimidine-diphosphate:4-methyl-5-(2-phosphoethyl)-thiazole 2-methyl-4-aminopyridine-5-methenyltransferase
Definition
4-Amino-5-hydroxymethyl-2-methylpyrimidine diphosphate + 4-Methyl-5-(2-phosphooxyethyl)thiazole <=> Diphosphate + Thiamin monophosphate
Equation
C04752 + C04327 <=> C00013 + C01081
Reaction class
RC00224  C01081_C04327
RC03397  C01081_C04752
Enzyme
2.5.1.3
Pathway
rn00730  Thiamine metabolism
rn01100  Metabolic pathways
rn01240  Biosynthesis of cofactors
Module
M00899  Thiamine salvage pathway, HMP/HET => TMP
Brite
Enzymatic reactions [BR:br08201]
 2. Transferase reactions
  2.5  Transferring alkyl or aryl groups, other than methyl groups
   2.5.1  Transferring alkyl or aryl groups, other than methyl groups (only sub-subclass identified to date)
    2.5.1.3
     R03223  4-Amino-5-hydroxymethyl-2-methylpyrimidine diphosphate + 4-Methyl-5-(2-phosphooxyethyl)thiazole <=> Diphosphate + Thiamin monophosphate
Orthology
K00788  thiamine-phosphate pyrophosphorylase [EC:2.5.1.3]
K14153  hydroxymethylpyrimidine kinase / phosphomethylpyrimidine kinase / thiamine-phosphate diphosphorylase [EC:2.7.1.49 2.7.4.7 2.5.1.3]
K14154  thiamine-phosphate diphosphorylase / hydroxyethylthiazole kinase [EC:2.5.1.3 2.7.1.50]
K21219  hydroxymethylpyrimidine kinase / phosphomethylpyrimidine kinase / thiamine-phosphate diphosphorylase [EC:2.7.1.49 2.7.4.7 2.5.1.3]
K21220  thiamine-phosphate diphosphorylase [EC:2.5.1.3]
Other DBs
RHEA: 22331

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