lysine

American

[lahy-seen, -sin] / ˈlaɪ sin, -sɪn /

noun

Biochemistry.

a crystalline, basic, amino acid, H 2 N(CH2 ) 4 CH(NH2 )COOH, produced chiefly from many proteins by hydrolysis, essential in the nutrition of humans and animals. Lys; K

lysine British

/ -sɪn, ˈlaɪsiːn /

noun

an essential amino acid that occurs in 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

lysine Scientific

/ lī′sēn′ /

An essential amino acid. Chemical formula: C ₆ H ₁₄ N ₂ O ₂ .
See more at amino acid

Etymology

Origin of lysine

First recorded in 1890–95; lys- + -ine ²

Example Sentences

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See Examples For:

lysine

In the plant, then, lysine gets converted to pipecolic acid, and then this enzyme converts it to P6C, or Δ1-piperideine-6-carboxylic acid, yet another step in the lysine catabolism pathway.

From Salon ● Mar. 5, 2025

In fact, two amino acids, lysine and ornithine, became more abundant in the gut after infection.

From Science Daily ● Nov. 15, 2024

The nonsticky, vegan lip treatments are meant to heal lips via shea butter, jojoba oil and lysine.

From Los Angeles Times ● Mar. 14, 2024

ADM was the subject of a nonfiction book titled “The Informant” in 2000, and an ensuing film starring Matt Damon, about a 1990s price-fixing scheme for the the animal feed additive lysine.

From Seattle Times ● Jan. 22, 2024

Maize lacks digestible niacin, the amino acids lysine and tryptophan, necessary to make proteins and diets with too much maize can lead to protein deficiency and pellagra, a disease caused by lack of niacin.

From "1491" by Charles C. Mann

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