General Information
Reaction IDOSR2294
DefinitionH2O + Porphobilinogen <=> NH3 + Hydroxymethylbilane
EquationOSC0039+4OSC1019 <=> 4OSC0055 + OSC2213
Structure  +    <=>    +  
Enzyme2.5.1.61  hydroxymethylbilane synthase
Pathways
KEGG Pathwayrn00860  rn01100  rn01110  
Metacyc PathwayPWY-5188  
Database Link
UniprotHEM3_ORYSJ  
KEGGrn:R00084  
GrameneOHMETHYLBILANESYN-RXN