4.3.1.27: threo-3-hydroxy-D-aspartate ammonia-lyase

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

Reaction

Synonyms

D-THA DH, D-threo-3-hydroxyaspartate ammonia-lyase, D-threo-3-hydroxyaspartate dehydratase

ECTree

4 Lyases

4.3 Carbon-nitrogen lyases

4.3.1 Ammonia-lyases

4.3.1.27 threo-3-hydroxy-D-aspartate ammonia-lyase

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Results	in table
165	AA Sequence
1	Application
2	Cloned(Commentary)
2	Cofactor
2	Crystallization (Commentary)
2	Expression
1	General Stability
3	Inhibitors
5	kcat/KM [mM/s]
5	KM Value [mM]
8	Metals/Ions
5	Molecular Weight [Da]
3	Organism
16	PDB ID
2	pH Optimum
3	Protein Variants
2	Purification (Commentary)
1	Reaction
3	Reference
4	Specific Activity [micromol/min/mg]
9	Substrates and Products (Substrate)
1	Subunits
8	Synonyms
1	Systematic Name
2	Temperature Optimum [°C]
5	Turnover Number [1/s]

Systematic Name

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Systematic Name on EC 4.3.1.27 - threo-3-hydroxy-D-aspartate ammonia-lyase

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threo-3-hydroxy-D-aspartate ammonia-lyase (oxaloacetate-forming)

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+.