: an amino acid C5H9NO2 that can be synthesized by animals from glutamate
Examples of proline in a Sentence
Recent Examples on the WebMeanwhile Atlantic sea kelp, proline, and botanical oils help boost collagen production and to ensure skin is more moisturized after each use.—Kiana Murden, Vogue, 15 Aug. 2024 Key Ingredients: Atlantic sea kelp, proline, salicylic acid.—Kiana Murden, Vogue, 14 June 2024 Collagen is a protein made by the body from the essential amino acids proline and glycine with an assist from copper, zinc and vitamin C.
One-third of the body’s protein is collagen.—Sheah Rarback, Miami Herald, 24 Feb. 2024 The foods richest in collagen come from animals, but several fruits and vegetables are rich in vitamin C, amino acids proline and glycine, and minerals such as zinc and copper, all of which promote the synthesis of this essential protein.—Alessandra Signorelli, Glamour, 24 Oct. 2023 The anti-inflammatory properties of collagen are due to its content of proline and glycine.—Amber Smith, Discover Magazine, 23 Mar. 2022 Combining powerful amino acids such as glycine and proline, this product works to strengthen tendons, ligaments, bones, hair, skin, and nails.—Amber Smith, Discover Magazine, 9 Jan. 2023 Repeats with a lot of proline, threonine and serine transform a typical protein to a mucin because of the polypeptide structure that is formed.—Coren Walters-Stewart, Discover Magazine, 18 Oct. 2022 Bone broth is rich in amino acids like glycine and proline, which are needed for the production of collagen.—Amber Smith, Discover Magazine, 21 Dec. 2022
These examples are programmatically compiled from various online sources to illustrate current usage of the word 'proline.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.
Word History
Etymology
German Prolin, contraction of Pyrrolidin pyrrolidine (C4H9N), from International Scientific Vocabulary pyrrole + -idine
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