In enzymology, a diguanidinobutanase (EC 3.5.3.20) is an enzyme that catalyzes the chemical reaction

diguanidinobutanase
Identifiers
EC no.3.5.3.20
CAS no.125268-65-7
Databases
IntEnzIntEnz view
BRENDABRENDA entry
ExPASyNiceZyme view
KEGGKEGG entry
MetaCycmetabolic pathway
PRIAMprofile
PDB structuresRCSB PDB PDBe PDBsum
Gene OntologyAmiGO / QuickGO
Search
PMCarticles
PubMedarticles
NCBIproteins
1,4-diguanidinobutane + H2O agmatine + urea

Thus, the two substrates of this enzyme are 1,4-diguanidinobutane and H2O, whereas its two products are agmatine and urea.

This enzyme belongs to the family of hydrolases, those acting on carbon-nitrogen bonds other than peptide bonds, specifically in linear amidines. The systematic name of this enzyme class is 1,4-diguanidinobutane amidinohydrolase.

References

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  • Yorifuji T, Kaneoke M, Shimizu E, Shiota K, Matsuo R (1989). "Degradation of alpha,omega-diguanidinoalkanes and a novel enzyme, diguanidinobutane amidohydrolase, in Pseudomonas putida". Agric. Biol. Chem. 53: 3003–3009. doi:10.1271/bbb1961.53.3003.