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serine

American  
[ser-een, -in, seer-] / ˈsɛr in, -ɪn, ˈsɪər- /

noun

Biochemistry.
  1. a crystalline amino acid, HOCH 2 CH(NH2 )COOH, found in many proteins and obtained by the hydrolysis of sericin, the protein constituting silk gum. Ser; S


serine British  
/ -rɪn, ˈsɪəriːn, ˈsɛriːn /

noun

  1. a sweet-tasting amino acid that is synthesized in the body and is involved in the synthesis of cysteine; 2-amino-3-hydroxypropanoic acid. Formula: CH 2 (OH)CH(NH 2 )COOH

"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

serine Scientific  
/ sĕrēn′ /
  1. A nonessential amino acid. Chemical formula: C 3 H 7 NO 3 .

  2. See more at amino acid


Etymology

Origin of serine

First recorded in 1875–80; ser(um) + -ine 2

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:

"However, we did see that if we prevented a stem cell from making its own serine and replenished its losses through a high-serine diet, we were able to partially rescue hair regeneration," Novak adds.

From Science Daily Nov. 7, 2025

The body maintains tight control over serine levels, and even when mice were given six times more dietary serine than usual, levels only increased by about 50%.

From Science Daily Nov. 7, 2025

"Our findings suggest that we might be able to speed up the healing of skin wounds by manipulating serine levels through diet or medications."

From Science Daily Nov. 7, 2025

Earlier research from the Fuchs lab showed that precancerous skin stem cells can become dependent on circulating serine and that limiting serine in the diet helps stop these cells from turning cancerous.

From Science Daily Nov. 7, 2025

When serine levels were low, hair growth slowed because it requires significant energy.

From Science Daily Nov. 7, 2025

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