cohesin

noun
co·​he·​sin | \ kō-ˈhē-sən How to pronounce cohesin (audio) , -zən \
plural cohesins

Definition of cohesin

: a ring-shaped protein complex that produces cohesion between sister chromatids and mediates their separation during cell division and that also plays a role in repairing damaged replicated DNA and regulating genetic transcription At the cell-cycle stage known as anaphase, cohesins are cleaved and cohesion between sister chromatids dissolves, triggering their segregation.— Paul Megee

First Known Use of cohesin

1998, in the meaning defined above

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The first known use of cohesin was in 1998

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Cite this Entry

“Cohesin.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/cohesin. Accessed 16 Jun. 2021.

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