Diaminopropionate ammonia-lyase
In enzymology, a diaminopropionate ammonia-lyase (EC 4.3.1.15) is an enzyme that catalyzes the chemical reaction
- 2,3-diaminopropanoate + H2O pyruvate + 2 NH3
| diaminopropionate ammonia-lyase | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Identifiers | |||||||||
| EC number | 4.3.1.15 | ||||||||
| CAS number | 51901-19-0 | ||||||||
| Databases | |||||||||
| IntEnz | IntEnz view | ||||||||
| BRENDA | BRENDA entry | ||||||||
| ExPASy | NiceZyme view | ||||||||
| KEGG | KEGG entry | ||||||||
| MetaCyc | metabolic pathway | ||||||||
| PRIAM | profile | ||||||||
| PDB structures | RCSB PDB PDBe PDBsum | ||||||||
| Gene Ontology | AmiGO / QuickGO | ||||||||
| |||||||||
Thus, the two substrates of this enzyme are 2,3-diaminopropionate and H2O, whereas its two products are pyruvate and NH3.
This enzyme belongs to the family of lyases, specifically ammonia lyases, which cleave carbon-nitrogen bonds. The systematic name of this enzyme class is 2,3-diaminopropanoate ammonia-lyase (adding H2O; pyruvate-forming). Other names in common use include diaminopropionatase, alpha,beta-diaminopropionate ammonia-lyase, 2,3-diaminopropionate ammonia-lyase, and 2,3-diaminopropanoate ammonia-lyase. It employs one cofactor, pyridoxal phosphate.
References
- Nagasawa T, Tanizawa K, Satoda T, Yamada H (1988). "Diaminopropionate ammonia-lyase from Salmonella typhimurium Purification and characterization of the crystalline enzyme, and sequence determination of the pyridoxal 5'-phosphate binding peptide". J. Biol. Chem. 263 (2): 958–64. PMID 3275662.
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