Ethanolamine ammonia-lyase

The enzyme ethanolamine ammonia-lyase (EC 4.3.1.7) catalyzes the chemical reaction


 * ethanolamine $$\rightleftharpoons$$ acetaldehyde + 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 ethanolamine ammonia-lyase (acetaldehyde-forming). It is also called ethanolamine deaminase. It participates in glycerophospholipid metabolism. It employs one cofactor, adenosylcobalamin.

Structural studies
As of early 2011, several structures have been solved for this class of enzymes. The first structure solved was the active site containing EutB subunit of EAL from Listeria monocytogenes with the PDB accession code. Later, more structures have become available from Escherichia coli that include both EAL subunits bound to various ligands.