isoleucine

noun

iso·​leu·​cine ˌī-sō-ˈlü-ˌsēn 

: a crystalline, hydrophobic, essential amino acid C₆H₁₃NO₂ that is obtained in its levorotatory l-form by the hydrolysis of dietary protein and is isomeric with leucine

Examples of isoleucine in a Sentence

Recent Examples on the Web

Branched-Chain Amino Acids (BCAAs) Branched-chain amino acids (BCAAs) include leucine, isoleucine, and valine. —Mary Choy, Health, 21 Oct. 2024

Challenging workouts and proper fueling will be your best muscle builders. BCAAs BCAAs contain three essential amino acids: leucine, isoleucine, and valine. —Donavyn Coffey, TIME, 1 Apr. 2024

High-quality protein is any protein that contains all of the nine essential amino acids (histidine, isoleucine, leucine, lysine, methionine, phenylalanine, threonine, tryptophan and valine) that our bodies don’t make on their own. —USA TODAY, 2 July 2023

Leucine, isoleucine, and valine are the three BCAAs. —Amber Smith, Discover Magazine, 16 Nov. 2022

Some important plant proteins, like asparagus and lily, have low levels of isoleucine and lysine. —Amber Smith, Discover Magazine, 16 Dec. 2022

Every scoop of Plant JYM Vegan Protein Powder contains 24 grams of protein and five grams of leucine, isoleucine and valine, stacked at the recommend 2:1:1 ratio. —Dallas News, 15 Feb. 2022

Word History

Etymology

International Scientific Vocabulary

First Known Use

1903, in the meaning defined above

Medical Definition

isoleucine

noun

iso·​leu·​cine ˌī-sō-ˈlü-ˌsēn 

: a crystalline essential amino acid C₆H₁₃NO₂ isomeric with leucine

—abbreviation Ile