What are transcription factors?
Q: What are transcription factors?
A: Transcription factors are proteins that are involved in regulating genes by controlling the rate of transcription of genetic information from DNA to messenger RNA.
Q: How do transcription factors control gene expression?
A: Transcription factors control gene expression by binding to specific DNA sequences that are located next to the genes they regulate.
Q: What is RNA polymerase?
A: RNA polymerase is an enzyme that copies genetic information from DNA to RNA for specific genes.
Q: What are DNA-binding domains (DBDs)?
A: DNA-binding domains (DBDs) are regions of transcription factors that attach to specific sequences of DNA next to the genes they regulate.
Q: What are coactivators, chromatin remodellers, histone acetylases or deacetylases, kinases, and methylases?
A: Coactivators, chromatin remodellers, histone acetylases or deacetylases, kinases, and methylases are other proteins that play crucial roles in gene regulation. They work together with transcription factors to promote or block RNA polymerase.
Q: Why are coactivators, chromatin remodellers, histone acetylases or deacetylases, kinases, and methylases not called transcription factors?
A: Coactivators, chromatin remodellers, histone acetylases or deacetylases, kinases, and methylases are not called transcription factors because they lack DNA-binding domains.
Q: What is a sequence-specific DNA-binding factor?
A: A sequence-specific DNA-binding factor is another name for a transcription factor. It refers to the fact that each transcription factor binds to a specific DNA sequence to regulate the rate of transcription of genetic information from DNA to messenger RNA.
