Threonine Dehydratase

A pyridoxal-phosphate protein that catalyzes the deamination of THREONINE to 2-ketobutyrate and AMMONIA. The role of this enzyme can be biosynthetic or biodegradative. In the former role it supplies 2-ketobutyrate required for ISOLEUCINE biosynthesis, while in the latter it is only involved in the breakdown of threonine to supply energy. This enzyme was formerly listed as EC 4.2.1.16.

Year introduced: 1978(1975)

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Tree Number(s): D08.811.520.232.400.850

MeSH Unique ID: D013913

Registry Number: EC 4.3.1.19

Entry Terms:

• Dehydratase, Threonine
• Threonine Ammonia-Lyase
• Ammonia-Lyase, Threonine
• Threonine Ammonia Lyase
• Threonine Deaminase
• Deaminase, Threonine
• Threonine Dehydrase
• Dehydrase, Threonine

Previous Indexing:

• Hydro-Lyases (1966-1974)
• Threonine (1966-1974)

All MeSH Categories
Chemicals and Drugs Category
Enzymes and Coenzymes
Enzymes
Lyases
Carbon-Nitrogen Lyases
Ammonia-Lyases
Threonine Dehydratase