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Transcription Factors

Definition

Transcription factors are proteins involved in the process of converting, or transcribing, DNA into RNA. They help regulate gene expression by binding to specific sites on DNA and controlling how often genes get transcribed into mRNA molecules.

Analogy

Imagine transcription factors as directors on a movie set. They don't act out scenes themselves but guide others (DNA strands) on how and when to perform their roles (produce proteins).

Related terms

RNA Polymerase: An enzyme that synthesizes RNA by following a DNA template.

Activators: These are types of transcription factors that increase the transcription of a gene or set of genes.

Repressors: These are types of transcription factors that decrease the transcription of a gene or set of genes.



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© 2024 Fiveable Inc. All rights reserved.

AP® and SAT® are trademarks registered by the College Board, which is not affiliated with, and does not endorse this website.