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Suboperonic Regulatory Signals

In prokaryotes, the genome is necessarily small in size, thus creating challenges for gene regulation. Adhya discusses how polycistronic operons can be regulated at the suboperonic level to allow genes to be independently regulated within an operon. This permits the cells to respond to different environmental conditions and allows the genes within operons to encode proteins involved in divergent cellular processes and still be regulated according to the cell's needs. Suboperonic control leads to discoordinate gene expression and can occur through transcriptional regulatory events or translational regulatory events mediated by proteins or cis- or trans-acting RNAs.

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Classifications


Resource Type: Diagram, Illustration, Journal article/Issue, Review
Audience Level: Undergraduate upper division 15-16, Graduate, Professional (degree program)

Author and Copyright


Authors and Editors: Sankar Adhya of Laboratory of Molecular Biology, National Institutes of Health
Publisher: American Association for the Advancement of Science
Format: application/pdf, image/gif, image/jpeg, text/html
Copyright and other restrictions: Yes
Cost: Yes

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STKE/Science Signaling


     
   

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