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Catalysis of the reaction: (-)-ureidoglycolate = glyoxylate + urea. Catalysis of the reaction: peptidylamidoglycolate = peptidyl amide + glyoxylate. Catalysis of the reaction: (S)-2-(5-amino-1-(5-phospho-D-ribosyl)imidazole-4-carboxamido)succinate = fumarate + 5-amino-1-(5-phospho-D-ribosyl)imidazole-4-carboxamide. Catalysis of the reaction: N6-(1,2-dicarboxyethyl)AMP = fumarate + AMP. Catalysis of the release of ammonia or one of its derivatives, with the formation of a double bond or ring. Enzymes with this activity may catalyze the actual elimination of the ammonia, amine or amide, e.g. CH-CH(-NH-R) = C=CH- + NH2-R. Others, however, catalyze elimination of another component, e.g. water, which is followed by spontaneous reactions that lead to breakage of the C-N bond, e.g. L-serine ammonia-lyase (EC:4.3.1.17), so that the overall reaction is C(-OH)-CH(-NH2) = CH2-CO- + NH3, i.e. an elimination with rearrangement. The sub-subclasses of EC:4.3 are the ammonia-lyases (EC:4.3.1), lyases acting on amides, amidines, etc. (EC:4.3.2), the amine-lyases (EC:4.3.3), and other carbon-nitrogen lyases (EC:4.3.99). Catalysis of the reaction: DNA 4,6-diamino-5-formamidopyrimidine = DNA adenine + H2O. Catalysis of the reaction: N-(L-arginino)succinate = fumarate + L-arginine. Catalysis of the cleavage of C-C, C-O, C-N and other bonds by other means than by hydrolysis or oxidation, or conversely adding a group to a double bond. They differ from other enzymes in that two substrates are involved in one reaction direction, but only one in the other direction. When acting on the single substrate, a molecule is eliminated and this generates either a new double bond or a new ring. Catalysis of the release of amides or amidines by the cleavage of a carbon-nitrogen bond or the reverse reaction with an amide or amidine as a substrate.

View Gene Ontology (GO) Term

GO TERM SUMMARY
Name: amidine-lyase activity
Acc: GO:0016842
Aspect: Molecular Function
Desc: Catalysis of the release of amides or amidines by the cleavage of a carbon-nitrogen bond or the reverse reaction with an amide or amidine as a substrate.
Proteins in PDR annotated with:
   This term: 0
   Term or descendants: 57 [Search]


[geneontology.org]
INTERACTIVE GO GRAPH

GO:0016842 - amidine-lyase activity (interactive image map)
YRC Informatics Platform - Version 3.0
Created and Maintained by: Michael Riffle