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proline

American

[proh-leen, -lin] / ˈproʊ lin, -lɪn /

noun

Biochemistry.

an alcohol-soluble amino acid, C 4 H 9 NHCOOH, occurring in high concentration in collagen. Pro; P

proline British

/ ˈprəʊliːn, -lɪn /

noun

a nonessential amino acid that occurs in protein

"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

proline Scientific

/ prō′lēn′ /

A nonessential amino acid. Chemical formula: C ₅ H ₉ NO ₂ .
See more at amino acid

Etymology

Origin of proline

First recorded in 1900–05; alteration of pyrrolidine

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:

proline

A new method of drug delivery using proline, an amino acid found in chicken feathers and skin tissue, could be used to limit the side effects of chemotherapy and repair important enzymes, new research suggests.

From Science Daily ● May 29, 2024

I have been taking niacin for years along with vitamin C and the amino acids lysine and proline.

From Seattle Times ● Jun. 14, 2023

For example, CCU, CCC, CCA, and CCG are all codons for proline.

From Textbooks ● Jun. 9, 2022

The reaction worked, proving that proline was an excellent catalyst and that an amino acid can drive what is known as asymmetric catalysis.

From New York Times ● Oct. 6, 2021

Nothing is known, however, of the process by which the more complicated closed-ring amino-acid compounds, such as proline, histidine, or tryptophane, are synthetized.

From The Chemistry of Plant Life by Roscoe Wilfred Thatcher

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