coactivator

noun
co·​ac·​ti·​va·​tor | \ (ˈ)kō-ˈak-tə-ˌvā-tər How to pronounce coactivator (audio) \

Medical Definition of coactivator

: a protein or protein complex that activates genetic transcription usually by binding to a transcription factor Gene-regulatory proteins that do not themselves bind DNA but assemble on DNA-bound gene regulatory proteins are often termed coactivators or corepressors, depending on their effect on transcription initiation.— Bruce Alberts et al., Molecular Biology of the Cell, 2002

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“Coactivator.” Merriam-Webster.com Medical Dictionary, Merriam-Webster, https://www.merriam-webster.com/medical/coactivator. Accessed 4 Aug. 2020.

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