proline

[ proh-leen, -lin ]

noun

, Biochemistry.

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

proline

/ ˈprəʊliːn; -lɪn /

noun

1. a nonessential amino acid that occurs in protein

proline

/ prō′lēn′ /

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

Word History and Origins

Origin of proline¹

First recorded in 1900–05; alteration of pyrrolidine

Word History and Origins

Origin of proline¹

C20: from pyrrolidine

Example Sentences

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

As hypertensive pulmonary blood vessels metabolize glutamine and serine, they create two new amino acids, called proline and glycine.

From Science Daily

However, they did find that the variant causes a shift from the amino acid proline to leucine, which may interfere with the formation of a helix found in the normal version.

From Science Daily

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

From Seattle Times

Gelatin is made almost entirely of protein — 98 to 99% to be exact, per Healthline — and contains several amino acids, including proline and glycine, which both help rebuild tissue that lines the digestive tract.

From Salon