CAS BI 203 Lecture Notes - Lecture 7: Tryptophan, Repressor, Allosteric Regulation
7 Feb 2014
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In this video, we"ll 2867 continue our discussion on gene. In particular, we"re going to focus most of this lecture on the trp repressor. And we"re going to talk about negative feedback, which. And again, allostery is going to play the key role in terms of a. 2871 small molecule binding to a protein, changing its shape, which then changes the proteins. 2873 [00:00:32. 18] we"ll look at more complex mechanisms of gene regulation. 2874 look at the way the cells decide which sugar to use. And then we"ll look at some other complex. So here is the operon for tryptophan bio synthesis. 2876 five proteins that each play a different role in the bio synthesis of this amino acid; amino end, 2877 alpha carbon, carboxylic end, and then the big side chain here. 2878 [00:01:11. 29] these five genes are coordinately regulated since this is an operon, it"s a. They are all regulated by this promoter region.
