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valine

American

[val-een, -in, vay-leen, -lin] / ˈvæl in, -ɪn, ˈveɪ lin, -lɪn /

noun

Biochemistry.

an essential amino acid, (CH3 ) 2 CHCH(NH2 )COOH, white, crystalline, and water-soluble, present in most plant and animal proteins, required for growth. Val; V

valine British

/ ˈveɪliːn, ˈvæl- /

noun

an essential amino acid; a component of proteins

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

valine Scientific

/ văl′ēn′ /

An essential amino acid. Chemical formula: C ₅ H ₁₁ NO ₂ .
See more at amino acid

Etymology

Origin of valine

First recorded in 1910–15; val(eric) + -ine ²

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

valine

Methionine, isoleucine, and valine appear to play especially important roles.

From Science Daily ● Aug. 2, 2026

On these lines, they conducted a series of experiments by replacing phenylalanine and valine amino acid residues at specific positions in the structure of Ado, with various other amino acids.

From Science Daily ● May 16, 2024

In sickle cell hemoglobin, this glutamate is replaced by a valine.

From Textbooks ● Jun. 9, 2022

For example, valine is known by the letter V or the three-letter symbol val.

From Textbooks ● Jun. 9, 2022

This resulted in the substitution of one amino acid for another: glutamate was switched to valine.

From "The Gene" by Siddhartha Mukherjee

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Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023