thyronine Chem.
(ˈθaɪərəniːn)
[f. thyro- + -n- + -ine5.]
The amino-acid HOC6H4OC6H4CH2CH(NH2)COOH, of which thyroxine can be regarded as a formal derivative (see quots.).
| 1928 C. R. Harington in Biochem. Jrnl. XXII. 1430 In order to lessen the clumsiness of the systematic nomenclature of thyroxine derivatives it is proposed to call the amino-acid, desiodothyroxine, ‘thyronine’..so that thyroxine would be ‘3:5:3{p}:5{p}-tetraiodothyronine’. 1970 R. W. McGilvery Biochemistry xxiii. 562 (caption) The active thyroid hormone, thyroxine, is in a formal sense the tetraiodo derivative of an amino acid called thyronine. |