4.3.1.20: erythro-3-hydroxy-L-aspartate ammonia-lyase

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For detailed information about erythro-3-hydroxy-L-aspartate ammonia-lyase, go to the full flat file.

Reaction

Synonyms

3-Hydroxyaspartate dehydratase, Dehydratase, 3-hydroxyaspartate, EC 4.2.1.38, Erythro-3-hydroxyaspartate hydro-lyase (deaminating), Erythro-beta-hydroxyaspartate dehydratase, Hydroxyaspartate dehydratase

ECTree

4 Lyases

4.3 Carbon-nitrogen lyases

4.3.1 Ammonia-lyases

4.3.1.20 erythro-3-hydroxy-L-aspartate ammonia-lyase

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Systematic Name on EC 4.3.1.20 - erythro-3-hydroxy-L-aspartate ammonia-lyase

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erythro-3-hydroxy-L-aspartate ammonia-lyase (oxaloacetate-forming)

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 4.3.1.16, threo-3-hydroxy-L-aspartate ammonia-lyase and EC 4.3.1.27, threo-3-hydroxy-D-aspartate ammonia-lyase. Requires a divalent cation such as Mn2+, Mg2+, and Ca2+.