Sunday, November 30, 2014

DNA Transcription

Initiation:

  • Transcription Factors locate promoter region (TATA box) 
  • TF binds with promoter 
  • Pol 2 begins to transcribe by reading TF
  • DNA begin to unwind and become more stable
  • Transcription takes place on complementary strand
Elongation:
  • 5' to 3' direction 
  • anti-parallel from template (antisense)
  • similar to coding (sense) 
  • T (thymine) is replaced by U (uracil) 
  • Goes from upstream to down stream
Termination:
  • Stops when it reaches AAAAUAAA

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