threonine
/ˈθriːəniːn
/noun [mass noun] Biochemistry
A hydrophilic amino acid which is a constituent of most proteins. It is an essential nutrient in the diet of vertebrates.
- Chemical formula: CH3CH(OH)CH(NH2)COOH.
- The aspartate can be used as a precursor for the synthesis of other amino acids such as asparagine, threonine, isoleucine, leucine, valine, lysine, and methionine.
- Nitrogen limitation in plants could explain the use of the polar amino acids serine and threonine instead of nitrogen-containing asparagine as in P. falciparum.
Origin
1930s: from threose (the name of a tetrose sugar) + -ine4.
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