User:Etienne Robillard/Notebook/Agent Ecoli:ToggleSwitchComponent

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== atc vs IPTG ==
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=== Overview ===
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* tetR (tetracycline resistance gene) + LacR (Lactose resistance gene; LacZ) bistable toggle switch: "TL phage lambda"
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* Definition of "lysogen" (Wikipedia): "A lysogen or lysogenic phage is a phage that can exist as a DNA in its dormant state (prophage) within its host organism. A prophage is either integrated into the host bacteria's chromosome or more rarely exists as a stable plasmid within the host cell. The prophage expresses gene(s) that repress the phage's lytic action, until this suppression is disrupted (see lytic cycle). Currently a variety of studies are being conducted to see whether other genes are active during lysogeny, examples of which include phage-encoded tRNA and virulence genes." [http://en.wikipedia.org/wiki/Lysogen 1]
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* IPTG acts as LacR promoter => prophage positive regulation !
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* aTc (tetR): a strong promoter (in contrast to araBAD/pLacZ) !!
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* DNA promoter ratio/balance is important key factor to consider !!!
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* 5832 combinations possible.. (TL3'?)
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* grow lytically in the absence of IPTG...
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* http://openwetware.org/wiki/IGEM:IMPERIAL/2007/Projects/Hrp_System/Parts
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* "The original plan for our project was to model the dynamics of the spread of an epidemic within a population. We hoped to make a multi-scale model of epidemic spread and test it in a model population..."
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* http://2007.igem.org/Virginia_Tech/Project
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* http://rrresearch.fieldofscience.com/2007/05/time-course-and-iptg-dependence.html
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* "The results may have implications for competence induction in H. influenzae too."
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* B. subtilis: http://www.ncbi.nlm.nih.gov/pmc/articles/PMC285643/
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* H. influenza: http://www.ncbi.nlm.nih.gov/pmc/articles/PMC246225/
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* TL3' = GAT TCT
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* strong promoter (tetR) repress weak promoter.. (lacZ)
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* PC = PHP ?
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* piperidine derived protection groups (Tris-HCl, Fmoc, dA, TX100) ??
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* piperidine + curcuma longa = chilly and spicy ingredient with Indian flavor ! (For best results stir well piperidine with curi in a meal or soup!)
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* http://cgsc.biology.yale.edu/Strain.php?ID=11225
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