The Enzyme Database

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EC 4.3.1.27     
Accepted name: threo-3-hydroxy-D-aspartate ammonia-lyase
Reaction: threo-3-hydroxy-D-aspartate = oxaloacetate + NH3
Other name(s): D-threo-3-hydroxyaspartate dehydratase
Systematic name: threo-3-hydroxy-D-aspartate ammonia-lyase (oxaloacetate-forming)
Comments: A pyridoxal-phosphate protein. The enzyme, purified from the bacterium Delftia sp. HT23, also has activity against L-threo-3-hydroxyaspartate, L-erythro-3-hydroxyaspartate, and D-serine. Different from EC 4.3.1.20, erythro-3-hydroxy-L-aspartate ammonia-lyase and EC 4.3.1.16, threo-3-hydroxy-L-aspartate ammonia-lyase. Requires a divalent cation such as Mn2+, Co2+ or Ni2+.
Links to other databases: BRENDA, EXPASY, KEGG, MetaCyc
References:
1.  Maeda, T., Takeda, Y., Murakami, T., Yokota, A. and Wada, M. Purification, characterization and amino acid sequence of a novel enzyme, D-threo-3-hydroxyaspartate dehydratase, from Delftia sp. HT23. J. Biochem. 148 (2010) 705–712. [PMID: 20843822]
[EC 4.3.1.27 created 2011]
 
 


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