phenylalanine

== English == === Etymology === From phenyl +‎ alanine. === Pronunciation === IPA(key): /ˌfiːnəlˈæləniːn/, /ˌfɛnəlˈæləniːn/ === Noun === phenylalanine (countable and uncountable, plural phenylalanines) (biochemistry) An essential amino acid C9H11NO2 found in most animal proteins; it is essential for growth; the inability to metabolize it leads to phenylketonuria; it is a constituent of aspartame. Synonyms: Phe, F (symbols) This molecule or its D-isomer. ==== Derived terms ==== ==== Related terms ==== ==== Translations ====