Threo-3-hydroxy-D-aspartate ammonia-lyase

Threo-3-hydroxy-D-aspartate ammonia-lyase (EC 4.3.1.27, D-threo-3-hydroxyaspartate dehydratase) is an enzyme with systematic name threo-3-hydroxy-D-aspartate ammonia-lyase (oxaloacetate-forming).^[1] This enzyme catalyses the following chemical reaction

threo-3-hydroxy-D-aspartate

\rightleftharpoons

oxaloacetate + NH₃

This enzyme is a pyridoxal-phosphate protein.

References

↑ Maeda, T., Takeda, Y., Murakami, T., Yokota, A. and Wada, M. (2010). "Purification, characterization and amino acid sequence of a novel enzyme, D-threo-3-hydroxyaspartate dehydratase, from Delftia sp. HT23". J. Biochem. 148: 705–712. doi:10.1093/jb/mvq106. PMID 20843822.

External links

Threo-3-hydroxy-D-aspartate ammonia-lyase at the US National Library of Medicine Medical Subject Headings (MeSH)

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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