Team:TU Munich/Project/Constitutive Promoter
From 2012.igem.org
Line 44: | Line 44: | ||
<div> | <div> | ||
</div> | </div> | ||
+ | |||
</div> | </div> | ||
+ | |||
<div class="noexcol"> | <div class="noexcol"> | ||
==References== | ==References== |
Revision as of 20:28, 23 September 2012
Contents |
Constitutive Promoters
Motiviational Text why we need constitutive promoters and why we explicitly chose those three.
Background and principles
Jie Sun et al. describes 14 constitutive promoters from Saccharomyces cerevisiae, and its reaction at different culture conditions, oxy(-)/glu(+),oxy(+)/glu(+). 2 Where described as higher strength promoters TEF1p, TPI1p, and 7 as medium strenth pr. GPM1p, GPDp (TDH3p), FBA1p, PDC1p, ENO2p, PYK1p, and TEF2p. With exception to the strongest TEF1p all exhibit nearly the same expression values with varying oxygen conditions. TEF1p was also tested for small glucose concentrations showed 100% expression levels with oxygen limitation and 70 % without oxygenlimitation after 80 hours of cell cultivation.
A.Blount et al. states that repeated use of the same biological parts is not possible since the cells recombine long stretches of homologous DNA
Siavash Partow et al. compares several constitutive Promoters during varying Glucose concentrations Media:Tum12Promoterstärken.pdf, TEF1, HXT7,PGK1 are shown to be the most suitable ones. They also show the fusion of two promoters for bidirectional control of two genes namely TEF1 and PGK1 with comparable activity in both states Media:Tum12Promoterfusion.pdf, two constructs were successfully used pSP-G1-Vector and pSP-G2.
Media:Tum12Fusionspromoter_Vector.pdf
Elke Nevoigt et al. generated a library of TEF1 promotermutants for finetuning of Expression Media:Tum12 TEF-Promoter-mutants.pdf
General remarks and issues
TEF1p guarantues relative strong expression values under varying conditions as it is the case for brewing.