transcription factor
noun
: any of various proteins that bind to DNA and play a role in the regulation of gene expression by promoting transcription
Examples of transcription factor in a Sentence
Recent Examples on the Web
But with toxic levels of cobalt, the transcription factor is active without low oxygen levels, leading to abnormally high amounts of hemoglobin-carrying red blood cells—explaining the woman’s high hemoglobin levels.
—
Beth Mole,
ArsTechnica,
2 July 2026
In bacteria, transcription factors are rather like keys that fit the locks of unique binding sites on DNA.
—
Philip Ball,
Quanta Magazine,
18 June 2026
For this research, each transcription factor was tested individually in aged fibroblasts.
—
William A. Haseltine,
Forbes.com,
1 Apr. 2026
In this study, the team identified the transcription factor DEAF1, a gene which drives this dysregulation in aging muscles, switching on overactivity in the mTORC1 system and disrupting the protein exchange that functions normally in younger tissue.
—
New Atlas,
17 Jan. 2026
See All Example Sentences for transcription factor
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Beth Mole,
ArsTechnica,
2 July 2026
In bacteria, transcription factors are rather like keys that fit the locks of unique binding sites on DNA.
—
Philip Ball,
Quanta Magazine,
18 June 2026
For this research, each transcription factor was tested individually in aged fibroblasts.
—
William A. Haseltine,
Forbes.com,
1 Apr. 2026
In this study, the team identified the transcription factor DEAF1, a gene which drives this dysregulation in aging muscles, switching on overactivity in the mTORC1 system and disrupting the protein exchange that functions normally in younger tissue.
—
New Atlas,
17 Jan. 2026
See All Example Sentences for transcription factor
Cite this Entry
“Transcription factor.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/transcription%20factor. Accessed 7 Jul. 2026.
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