Erythro-3-hydroxyaspartate ammonia-lyase

This enzyme belongs to the family of lyases, specifically ammonia lyases, which cleave carbon-nitrogen bonds. The systematic name of this enzyme class is erythro-3-hydroxy-Ls-aspartate ammonia-lyase (oxaloacetate-forming). Other names in common use include 3-hydroxyaspartate dehydratase, erythro-beta-hydroxyaspartate dehydratase, erythro-3-hydroxyaspartate dehydratase, erythro-3-hydroxy-Ls-aspartate hydro-lyase (deaminating), and erythro-3-hydroxy-Ls-aspartate ammonia-lyase. It employs one cofactor, pyridoxal phosphate.

References

Gibbs RG, Morris JG (1965). "Purification and properties of erythro-beta-hydroxyasparate dehydratase from Micrococcus denitrificans". Biochem. J. 97 (2): 547–54. PMC 1264673. PMID 16749162.

Carbon-nitrogen lyases (EC 4.3)

4.3.1: ammonia-lyases	Histidine ammonia-lyase Formiminotransferase cyclodeaminase Serine dehydratase

4.3.2: amidine-lyases	Argininosuccinate lyase Adenylosuccinate lyase

Enzymes

Activity	Active site Binding site Catalytic triad Oxyanion hole Enzyme promiscuity Catalytically perfect enzyme Coenzyme Cofactor Enzyme catalysis Enzyme kinetics Lineweaver–Burk plot Michaelis–Menten kinetics

Regulation	Allosteric regulation Cooperativity Enzyme inhibitor

Classification	EC number Enzyme superfamily Enzyme family List of enzymes

Types	EC1 Oxidoreductases(list) EC2 Transferases(list) EC3 Hydrolases(list) EC4 Lyases(list) EC5 Isomerases(list) EC6 Ligases(list)

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