Homospermidine synthase
Homospermidine synthase (EC 2.5.1.44) is an enzyme with systematic name putrescine:putrescine 4-aminobutyltransferase (ammonia-forming). This enzyme catalyses the following chemical reaction
- (1) 2 putrescine sym-homospermidine + NH3 + H+
- (2) putrescine + spermidine sym-homospermidine + propane-1,3-diamine
| Homospermidine synthase | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Identifiers | |||||||||
| EC no. | 2.5.1.44 | ||||||||
| CAS no. | 76106-84-8 | ||||||||
| Databases | |||||||||
| IntEnz | IntEnz view | ||||||||
| BRENDA | BRENDA entry | ||||||||
| ExPASy | NiceZyme view | ||||||||
| KEGG | KEGG entry | ||||||||
| MetaCyc | metabolic pathway | ||||||||
| PRIAM | profile | ||||||||
| PDB structures | RCSB PDB PDBe PDBsum | ||||||||
| |||||||||
The reaction of this enzyme occurs in three steps.
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