What is "diguanidinobutanase"

n. (context enzyme English) A hydrolase enzyme that catalyzes the reaction of 1,4-diguanidinobutane and water into agmatine and urea.

In enzymology, a diguanidinobutanase is an enzyme that catalyzes the chemical reaction

1,4-diguanidinobutane + HO $\rightleftharpoons$ agmatine + urea

Thus, the two substrates of this enzyme are 1,4-diguanidinobutane and HO, 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.