sigma factor

noun

sig·ma factor ˈsig-mə-

: a detachable polypeptide subunit of RNA polymerase that facilitates the initiation of transcription by recognizing specific DNA promoter sites

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sigma factor

sigmatism

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“Sigma factor.” Merriam-Webster.com Medical Dictionary, Merriam-Webster, https://www.merriam-webster.com/medical/sigma%20factor. Accessed 7 Jul. 2026.

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sigma factor

noun

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