View source for leucine

==English==
{{wikipedia}}

===Etymology===
{{root|en|ine-pro|*lewk-}}
Derived from {{der|en|grc|λευκός||white}} {{suffix|en||ine}}.

===Pronunciation===
* {{IPA|en|/ˈluː.siːn/}}
* {{rhymes|en|uːsiːn|s=2}}

===Noun===
{{en-noun|~}}

# {{lb|en|amino acid}} An [[essential amino acid]], C<sub>6</sub>H<sub>13</sub>NO<sub>2</sub>, [[isomeric]] with [[isoleucine]], found in most [[animal]] [[protein]]s; it is essential for [[growth]] in [[children]].

====Synonyms====
* {{l|en|Leu}}

====Derived terms====
* {{l|en|acetylleucine}}
* {{l|en|leucine zipper}}

====Translations====
{{trans-top|essential amino acid; C<sub>6</sub>H<sub>13</sub>NO<sub>2</sub>}}
* Catalan: {{t|ca|leucina|f}}
* Chinese:
*: Mandarin: {{t+|cmn|亮氨酸|tr=liàng'ānsuān}}
* Czech: {{t|cs|leucin|m}}
* Danish: {{t|da|leucin}}
* Esperanto: {{t|eo|leŭcino}}
* Finnish: {{t|fi|leusiini}}
* French: {{t+|fr|leucine|f}}
* German: {{t+|de|Leucin|n}}
* Greek: {{t+|el|λευκίνη|f}}
* Hungarian: {{t|hu|leucin}}
* Ido: {{t+|io|leucino}}
* Japanese: {{t|ja|ロイシン|tr=roishin}}
* Persian: {{t|fa|لوسین|tr=lusin}}
* Polish: {{t+|pl|leucyna|f}}
* Portuguese: {{t|pt|leucina|f}}
* Romanian: {{t+|ro|leucină|f}}
* Russian: {{t+|ru|лейци́н|m}}
* Spanish: {{t+|es|leucina|f}}
* Swedish: {{t+|sv|leucin}}
{{trans-bottom}}

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==French==

===Noun===
{{fr-noun|f}}

# {{l|en|leucine}}

===Further reading===
* {{R:fr:TLFi}}

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==Italian==

===Noun===
{{head|it|noun form|g=f}}

# {{plural of|it|leucina}}

===Anagrams===
* {{anagrams|it|a=ceeilnu|enuclei}}