Enzyme:2.5.1.61

Upper Levels: EC2.-.-.- Transferases. : EC2.5.-.- Transferring alkyl or aryl groups, other than methyl groups. : EC2.5.1.- Transferring alkyl or aryl groups, other than methyl groups.

IDs and Links
IUBMB	EC2
ExPaSy	NiceZyme 2.5.1.61

porphobilinogen ammonia-lyase (polymerizing)
Systematic Name	porphobilinogen ammonia-lyase (polymerizing)
Common Name	hydroxymethylbilane synthase HMB-synthase porphobilinogen deaminase pre-uroporphyrinogen synthase uroporphyrinogen I synthase

4 Porphobilinogen + H2O = Hydroxy-methylbilane + 4 NH3 (links: Porphobilinogen = Hydroxy-methylbilane + NH3)

Porphobilinogen <Mapping> AtomMap:BMCCPPPY0004$BMCCPPBL0006$0 Hydroxy-methylbilane 1 ↔ 23 2 ↔ 19 3 ↔ 18 4 ↔ 17 5 ↔ 16 6 ↔ 42 7 ↔ 43 8 ↔ 44 9 ↔ 40 10 ↔ 41 11 ↔ 15 Porphobilinogen <Mapping> AtomMap:BMCCPPPY0004$BMIONT--0004$0 NH3 12 ↔ 1 Porphobilinogen <Mapping> AtomMap:BMCCPPPY0004$BMCCPPBL0006$1 (2nd) Hydroxy-methylbilane 1 ↔ 22 2 ↔ 14 3 ↔ 13 4 ↔ 12 5 ↔ 11 6 ↔ 37 7 ↔ 38 8 ↔ 39 9 ↔ 35 10 ↔ 36 11 ↔ 10 Porphobilinogen <Mapping> AtomMap:BMCCPPPY0004$BMIONT--0004$0 NH3 12 ↔ 1 Porphobilinogen <Mapping> AtomMap:BMCCPPPY0004$BMCCPPBL0006$2 (3rd) Hydroxy-methylbilane 1 ↔ 21 2 ↔ 9 3 ↔ 8 4 ↔ 7 5 ↔ 6 6 ↔ 32 7 ↔ 33 8 ↔ 34 9 ↔ 30 10 ↔ 31 11 ↔ 5 Porphobilinogen <Mapping> AtomMap:BMCCPPPY0004$BMIONT--0004$0 NH3 12 ↔ 1 Porphobilinogen <Mapping> AtomMap:BMCCPPPY0004$BMCCPPBL0006$3 default (3th) Hydroxy-methylbilane 1 ↔ 20 2 ↔ 4 3 ↔ 3 4 ↔ 2 5 ↔ 1 6 ↔ 27 7 ↔ 28 8 ↔ 29 9 ↔ 25 10 ↔ 26 11 ↔ 24 Porphobilinogen <Mapping> AtomMap:BMCCPPPY0004$BMIONT--0004$0 NH3 12 ↔ 1