tu·​bu·​lin | \ ˈtü-byə-lən How to pronounce tubulin (audio) , ˈtyü- \

Definition of tubulin

: a globular protein that polymerizes to form microtubules

Examples of tubulin in a Sentence

Recent Examples on the Web Perhaps the strangest thing found in these viruses are genes that encode relatives of a protein called tubulin, which helps a cell organize its internal contents. John Timmer, Ars Technica, 13 Feb. 2020 Cunningham suspects that when the strep antibodies target tubulin in the brain, the result is a gumming up of a cell’s structural machinery and, apparently, neuropsychiatric ills. Pamela Weintraub, Discover Magazine, 29 Mar. 2017 The autoantibodies also attached to tubulin, a protein molecule used to maintain a cell’s physical structure. Pamela Weintraub, Discover Magazine, 29 Mar. 2017

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

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First Known Use of tubulin

1968, in the meaning defined above

History and Etymology for tubulin

tubule + -in entry 1

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Time Traveler for tubulin

Time Traveler

The first known use of tubulin was in 1968

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Cite this Entry

“Tubulin.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/tubulin. Accessed 5 Dec. 2021.

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More Definitions for tubulin


tu·​bu·​lin | \ ˈt(y)ü-byə-lən How to pronounce tubulin (audio) \

Medical Definition of tubulin

: a globular protein that polymerizes to form microtubules


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