his·​ti·​dine | \ ˈhi-stə-ˌdēn How to pronounce histidine (audio) \

Definition of histidine

: a crystalline essential amino acid C6H9N3O2 formed by the hydrolysis of most proteins

Examples of histidine in a Sentence

Recent Examples on the Web Proline to histidine is another neutral to positive shift, also pointing to a net positive increase in regional charge. William A. Haseltine, Forbes, 22 Oct. 2021 The sequencing data revealed a variant that substituted an amino acid called histidine for arginine. Jason Ulrich, Scientific American, 1 Aug. 2021 Structural analysis showed that entry to a deeper crevice below was blocked by a histidine residue. William A. Haseltine, Forbes, 16 June 2021 In six lineages, this Q mutated to another amino acid, histidine (H) and is called 677H. Vaughn Cooper, Scientific American, 24 Mar. 2021 Her research has been employed by conservationists as well as cosmetics companies, most recently Herbal Essences, which partnered with Kew to verify the ingredients in its Bio:Renew line — ingredients like the hair-smoothing antioxidant histidine. Cotton Codinha, Allure, 22 Apr. 2019 The Nature study examined the same process in the amino acid histidine. Bradley J. Fikes, sandiegouniontribune.com, 4 Apr. 2018 In 1996, Dr. Croce and co-workers made international news with their discovery of a gene called the fragile histidine triad — FHIT for short. James Glanz And Agustin Armendariz, New York Times, 8 Mar. 2017 See More

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

First Known Use of histidine

1896, in the meaning defined above

History and Etymology for histidine

International Scientific Vocabulary hist- + -idine

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The first known use of histidine was in 1896

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Cite this Entry

“Histidine.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/histidine. Accessed 8 Aug. 2022.

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More Definitions for histidine


his·​ti·​dine | \ ˈhis-tə-ˌdēn How to pronounce histidine (audio) \

Medical Definition of histidine

: a crystalline essential amino acid C6H9N3O2 formed by the hydrolysis of most proteins abbreviation His

More from Merriam-Webster on histidine

Britannica.com: Encyclopedia article about histidine


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