The Enzyme Database

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Accepted name: erythro-3-hydroxy-L-aspartate ammonia-lyase
Reaction: erythro-3-hydroxy-L-aspartate = oxaloacetate + NH3
Other name(s): erythro-β-hydroxyaspartate dehydratase; erythro-3-hydroxyaspartate dehydratase; erythro-3-hydroxy-Ls-aspartate hydro-lyase (deaminating); erythro-3-hydroxy-Ls-aspartate ammonia-lyase
Systematic name: erythro-3-hydroxy-L-aspartate ammonia-lyase (oxaloacetate-forming)
Comments: A pyridoxal-phosphate protein. The enzyme, which was characterized from the bacterium Paracoccus denitrificans NCIMB 8944, is highly specific for the L-isomer of erythro-3-hydroxyaspartate. Different from EC, threo-3-hydroxy-L-aspartate ammonia-lyase and EC, threo-3-hydroxy-D-aspartate ammonia-lyase. Requires a divalent cation such as Mn2+, Mg2+, and Ca2+.
Links to other databases: BRENDA, EXPASY, KEGG, MetaCyc, CAS registry number: 37290-74-7
1.  Gibbs, R.G. and Morris, J.G. Purification and properties of erythro-β-hydroxyaspartate dehydratase from Micrococcus denitrificans. Biochem. J. 97 (1965) 547–554. [PMID: 16749162]
[EC created 1972 as EC, transferred 2001 to EC, modified 2011]

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