tyrosine

noun
ty·​ro·​sine | \ ˈtī-rə-ˌsēn How to pronounce tyrosine (audio) \

Definition of tyrosine

: a phenolic amino acid C9H11NO3 that is a precursor of several important substances (such as epinephrine and melanin)

Examples of tyrosine in a Sentence

Recent Examples on the Web For example, tyrosine kinase inhibitors (TKIs) have shown better efficacy in treating those of East Asian descent with non-small cell lung cancer compared to other population cohorts. Stephane Budel, Forbes, 26 May 2021 There’s no technological reason why a researcher couldn’t have switched the codons for one amino acid, like tyrosine, into the codons for another one, like alanine. Ethan Siegel, Forbes, 20 May 2021 One reason is fewer people are smoking, and improved treatments like epidermal growth-factor receptor tyrosine-kinase inhibitor are able to target non-small cell lung cancer mutations. The Editorial Board, WSJ, 14 Jan. 2021 In blood cancers and some solid tumors, two of the current therapeutic targets that have garnered much interest are the proteins BCL-2 and Bruton tyrosine kinase (BTK). Scientific American, 1 Dec. 2020 His tyrosine is part of a long chain that makes a protein, also called XIAP. Mark Johnson And Kathleen Gallagher, Milwaukee Journal Sentinel, 21 Dec. 2010 But in Nicholas, the one-letter change produces an entirely different amino acid, tyrosine. Mark Johnson And Kathleen Gallagher, Milwaukee Journal Sentinel, 21 Dec. 2010 Other cancer therapies, such as a class of drugs known as Bruton's tyrosine kinase inhibitors, may be protective and are being tested in coronavirus patients without cancer. Emily Woodruff, NOLA.com, 6 Aug. 2020 Other types of cancer treatment, such as immunotherapies and tyrosine kinase inhibitors, were not associated with a greater risk of death among the patients. Jacqueline Howard, CNN, 28 May 2020 See More

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'tyrosine.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

First Known Use of tyrosine

1857, in the meaning defined above

History and Etymology for tyrosine

International Scientific Vocabulary, irregular from Greek tyros cheese — more at butter

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Time Traveler for tyrosine

Time Traveler

The first known use of tyrosine was in 1857

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Dictionary Entries Near tyrosine

tyrosinase

tyrosine

tyrothricin

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Statistics for tyrosine

Cite this Entry

“Tyrosine.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/tyrosine. Accessed 18 May. 2022.

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More Definitions for tyrosine

tyrosine

noun
ty·​ro·​sine | \ ˈtī-rə-ˌsēn How to pronounce tyrosine (audio) \

Medical Definition of tyrosine

: a phenolic amino acid C9H11NO3 that is a precursor of several important substances (as epinephrine and melanin) abbreviation Tyr

More from Merriam-Webster on tyrosine

Britannica.com: Encyclopedia article about tyrosine

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