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

This is an abbreviated version!
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]

Metals Ions

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Metals Ions on EC 4.3.1.27 - threo-3-hydroxy-D-aspartate ammonia-lyase

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Ca2+

activator

Co2+

the recombinant enzyme is highly activated by Co2+

Fe2+

activator

Mg2+

one Mg2+ is located between His351 and Cys353 at the active site. The other Mg2+ is chelated by the beta-carboxyl O atom and the beta-hydroxyl O atom of erythro-3-hydroxy-D-aspartate, forming a erythro-3-hydroxy-D-aspartate-Mg2+ complex

746895

Mn2+

Delftia sp. HT23

B2DFG5

the recombinant enzyme is highly activated by Mn2+

712323

Ni2+

Delftia sp. HT23

B2DFG5

the recombinant enzyme is highly activated by Ni2+

Zn2+

activator

additional information

Delftia sp. HT23

B2DFG5

no activity is detected when Sn2+ or Cu2+ is added

712323