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Aspartate ammonia-lyase

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(Redirected from Aspartase)
aspartate ammonia-lyase
Aspartate ammonia-lyase homotetramer, Bacillus sp. YM55-1
Identifiers
EC no.4.3.1.1
CAS no.9027-30-9
Databases
IntEnzIntEnz view
BRENDABRENDA entry
ExPASyNiceZyme view
KEGGKEGG entry
MetaCycmetabolic pathway
PRIAMprofile
PDB structuresRCSB PDB PDBe PDBsum
Gene OntologyAmiGO / QuickGO
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PMCarticles
PubMedarticles
NCBIproteins

The enzyme aspartate ammonia-lyase (EC 4.3.1.1) catalyzes the chemical reaction

L-aspartate fumarate + NH3

The reaction is the basis of the industrial synthesis of aspartate.[1]

This enzyme belongs to the family of lyases, specifically ammonia lyases, which cleave carbon-nitrogen bonds. The systematic name of this enzyme class is L-aspartate ammonia-lyase (fumarate-forming). Other names in common use include aspartase, fumaric aminase, L-aspartase, and L-aspartate ammonia-lyase. This enzyme participates in alanine and aspartate metabolism and nitrogen metabolism.

Structural studies

[edit]

As of late 2007, two structures have been solved for this class of enzymes, with PDB accession codes 1J3U and 1JSW.

References

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  1. ^ Karlheinz Drauz; Ian Grayson; Axel Kleemann; Hans-Peter Krimmer; Wolfgang Leuchtenberger; Christoph Weckbecker (2006). "Amino Acids". Ullmann's Encyclopedia of Industrial Chemistry. Weinheim: Wiley-VCH. doi:10.1002/14356007.a02_057.pub2. ISBN 978-3527306732.