A pyridoxal-phosphate protein.; A pyridoxal-phosphate protein. The reaction catalysed probably involves initial elimination of water, hence the enzyme's original classification as EC 184.108.40.206, erythro-3-hydroxyaspartate dehydratase, followed by isomerization and hydrolysis of the product with C-N bond breakage
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 220.127.116.11, threo-3-hydroxy-L-aspartate ammonia-lyase and EC 18.104.22.168, threo-3-hydroxy-D-aspartate ammonia-lyase. Requires a divalent cation such as Mn2+, Mg2+, and Ca2+.
enzyme does not use threo-DL-beta-hydroxyaspartate, erythro and threo-DL-beta-hydroxy-beta methylaspartate, allo D-isomers of serine, threonine and allothreonine, D and L-aspartate, and isomers of tartrate