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← More Regulation

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Showing Revision 2 created 09/30/2013 by Cogi-Admin.

  1. So up to this point, we've actually talked quite
  2. a bit about the non-coding regions of our genome.
  3. >> Promoters, enhancers, and silencers are just
  4. a portion of the non-coding piece of
  5. the pie. There's a lot of other ways that gene expression can be regulated.
  6. >> Exactly. There's some really cool ways, like how
  7. DNA wraps around histone proteins. Remember histones are actually those
  8. proteins that organize DNA into chromosomes. You can modify those
  9. histones that, in a way that actually promotes or inhibits
  10. transcription of a gene. There are also these small RNAs called micro
  11. RNAs that can bind to an MRNA transcript and target it for destruction.
  12. >> Now if you're interested in learning more about this topic we
  13. strongly encourage you to seek out a higher level genetics class or
  14. do some reading on your own. But for us, I just want
  15. you to focus on the non-coding
  16. regions called promoters, enhancers, and silencers.
  17. >> And regulatory proteins, such as transcription factors.