Enzyme:4.3.1.4

Upper Levels: EC4.-.-.- Lyases. : EC4.3.-.- Carbon-nitrogen lyases. : EC4.3.1.- Ammonia-lyases.

IDs and Links
IUBMB	EC4
ExPaSy	NiceZyme 4.3.1.4

5-formimidoyltetrahydrofolate ammonia-lyase (cyclizing)
Systematic Name	5-formimidoyltetrahydrofolate ammonia-lyase (cyclizing)
Common Name	formimidoyltetrahydrofolate cyclodeaminase formiminotetrahydrofolate cyclodeaminase

5-Formimino-tetrahydro-folic acid = 5,10-Methenyl-tetrahydro-folic acid + NH3 (links: 5-Formimino-tetrahydro-folic acid = 5,10-Methenyl-tetrahydro-folic acid + NH3)

5-Formimino-tetrahydro-folic acid <Mapping> AtomMap:BMCCPTFOn006$BMCCPTFOs004$0 5,10-Methenyl-tetrahydro-folic acid 1 ↔ 1 2 ↔ 2 3 ↔ 3 4 ↔ 4 5 ↔ 5 6 ↔ 6 7 ↔ 7 8 ↔ 8 9 ↔ 14 10 ↔ 10 11 ↔ 11 12 ↔ 12 13 ↔ 13 14 ↔ 15 15 ↔ 20 16 ↔ 19 17 ↔ 18 18 ↔ 17 19 ↔ 16 20 ↔ 21 21 ↔ 22 22 ↔ 23 23 ↔ 24 24 ↔ 25 25 ↔ 26 26 ↔ 27 27 ↔ 9 5-Formimino-tetrahydro-folic acid <Mapping> AtomMap:BMCCPTFOn006$BMIONT--0004$0 NH3 28 ↔ 1