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 184.108.40.206, threo-3-hydroxy-L-aspartate ammonia-lyase and EC 220.127.116.11, threo-3-hydroxy-D-aspartate ammonia-lyase. Requires a divalent cation such as Mn2+, Mg2+, and Ca2+.
EC 18.104.22.168 created 1972 as EC 22.214.171.124, transferred 2001 to EC 126.96.36.199, modified 2011