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Threonine Dehydratase MeSH Descriptor Data 2024


MeSH Heading
Threonine Dehydratase
Tree Number(s)
D08.811.520.232.400.850
Unique ID
D013913
RDF Unique Identifier
http://id.nlm.nih.gov/mesh/D013913
Scope Note
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.
Entry Term(s)
Threonine Ammonia-Lyase
Threonine Deaminase
Threonine Dehydrase
Registry Number
EC 4.3.1.19
Related Numbers
9024-34-4
CAS Type 1 Name
L-Threonine hydro-lyase (deaminating)
Previous Indexing
Hydro-Lyases (1966-1974)
Threonine (1966-1974)
Public MeSH Note
78; was see under HYDRO-LYASES 1975-77
History Note
78(75); was see under HYDRO-LYASES 1975-77
Date Established
1978/01/01
Date of Entry
1974/11/11
Revision Date
2005/06/30
Threonine Dehydratase Preferred
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