: a crystalline essential amino acid C5H11NO2 that is one of the building blocks of plant and animal proteins
Examples of valine in a Sentence
Recent Examples on the Web
It has been suggested that isoleucine and valine compete for the same site as leucine in the intestinal and muscle cells.
—
Elizabeth Barnes, Verywell Health, 26 Nov. 2024
Maple sugar urine disease is a metabolic disorder in which the body lacks the enzyme that breaks down the three BCAAs (isoleucine, leucine, and valine).
—Elizabeth Barnes, Verywell Health, 26 Nov. 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
The switch of an A to a T in the genetic code for hemoglobin results in a hemoglobin protein with a valine instead of a glutamic acid at the sixth amino acid position.
—Beth Mole, Ars Technica, 8 Dec. 2023
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
These include leucine, valine, isoleucine and a handful of other amino acids your body cannot naturally produce.
—Dallas News, 15 Feb. 2022
Three substitutions were identified: L50F (in which leucine at position 50 is substituted by phenylalanine), E166A or E166V (in which glutamic acid at position 166 is substituted by alanine or valine) and L167F (in which leucine at position 167 is substituted by phenylalanine).
—William A. Haseltine, Forbes, 9 June 2022
Leucine, like valine and isoleucine, is a branched-chain amino acid.
—Dr. Keith Roach, oregonlive, 28 Nov. 2022
Examples are automatically compiled from online sources to
show current usage.
Read More
Opinions expressed in the examples do not represent those of Merriam-Webster or its editors.
Send us feedback.
Elizabeth Barnes, Verywell Health, 26 Nov. 2024
Maple sugar urine disease is a metabolic disorder in which the body lacks the enzyme that breaks down the three BCAAs (isoleucine, leucine, and valine).
—Elizabeth Barnes, Verywell Health, 26 Nov. 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
The switch of an A to a T in the genetic code for hemoglobin results in a hemoglobin protein with a valine instead of a glutamic acid at the sixth amino acid position.
—Beth Mole, Ars Technica, 8 Dec. 2023
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
These include leucine, valine, isoleucine and a handful of other amino acids your body cannot naturally produce.
—Dallas News, 15 Feb. 2022
Three substitutions were identified: L50F (in which leucine at position 50 is substituted by phenylalanine), E166A or E166V (in which glutamic acid at position 166 is substituted by alanine or valine) and L167F (in which leucine at position 167 is substituted by phenylalanine).
—William A. Haseltine, Forbes, 9 June 2022
Leucine, like valine and isoleucine, is a branched-chain amino acid.
—Dr. Keith Roach, oregonlive, 28 Nov. 2022
Cite this Entry
“Valine.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/valine. Accessed 28 May. 2025.
Copy CitationLove words? Need even more definitions?
Merriam-Webster unabridged
Share