Overview of Transcription Processes and Factors

Aug 27, 2024

The Process of Transcription

Promoter and Transcription Factor

  • Promoter Recognition
    • Sigma 70 factor is essential.
    • Differences in prokaryotic and eukaryotic.

Binary Complex

  • Binary Complex: Relationship of RNA polymerase and DNA.
  • Promoter is cleared by transcription factor H.
  • Helix opening and hydrogen bond breaking.

Ternary Complex

  • Initiation of RNA synthesis.
  • Processes of elongation and termination.
    • Rho dependent and rho independent termination.

Prokaryotic Transcription

  • Multiple Genes: Unified transcription.
  • Differences in promoters: Pribnow box and Hogness box.
  • Recognition of Pribnow box by sigma 70 factor.

Eukaryotic Transcription

  • Promoter Structure:
    • Pribnow and Hogness boxes at -10 and -30.
  • Role of TBP (TATA Binding Protein).

Transcription Factor and Their Function

  • Order of transcription factors A, B, E, F, H.
  • Actions of kinases: phosphorylation.

Termination Process

  • Rho Protein: Breaks hydrogen bonds.
  • Hairpin Loop: Causes pausing.

In Conclusion

  • Diagram Reference: TBP, RNA polymerase, and other factors.
  • Educating Vedmi: Preparation for CSIR 2024 exam.
    • Discount code: VED 20.

Summary of Notes: This lecture discussed the processes of transcription, promoter recognition, and various aspects of RNA polymerase. Differences between prokaryotic and eukaryotic transcription were also explained.