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

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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

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serine Scientific  

/ sĕr′ēn′ /

1. A nonessential amino acid. Chemical formula: C ₃ H ₇ NO ₃ .

2. See more at amino acid

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Etymology

Origin of serine

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

Example Sentences

In their study published in Cell Metabolism, the scientists showed that when serine levels fall, the ISR activates and hair production slows down.

From Science Daily • Nov. 7, 2025

They either deprived mice of dietary serine or used genetic methods to block the cells from producing their own.

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

This metabolism of glutamine and serine is a key driver of pulmonary hypertension disease progression.

From Science Daily • May 2, 2024

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

From Science Daily • May 2, 2024