Team:LMU-Munich/Spore Coat Proteins

From 2012.igem.org

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<p align="justify">'''Sporo'''beads are ''Bacillus subtilis'' spores modulated in a way that they can be used as a platform for individual protein display. The aim of this module is to create these spores that display fusion proteins on their surface. There are several different proteins forming the spore coat layers of ''Bacillus subtilis'' spores. The outermost layer, the so called spore crust, is composed of two proteins, CotZ and CgeA ([http://www.ncbi.nlm.nih.gov/pubmed?term=imamura%20et%20al.%202011%20spore%20crust Imamura et al., 2011]). This is why we used them to create functional fusion proteins to be expressed on our '''Sporo'''beads.</p>  
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<p align="justify">'''Sporo'''beads are ''Bacillus subtilis'' spores modulated in a way that they can be used as a platform for individual protein display. The aim of this module is to create these spores that display fusion proteins on their surface. There are several different proteins forming the spore coat layers of ''B. subtilis'' spores (Fig. 1). The outermost layer, the so-called spore crust, is composed of two proteins, CotZ and CgeA ([http://www.ncbi.nlm.nih.gov/pubmed?term=imamura%20et%20al.%202011%20spore%20crust Imamura et al., 2011]). This is why we used them to create functional fusion proteins to be expressed on our '''Sporo'''beads.</p>  
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<p align="justify">The gene ''cgeA'' is located in the ''cgeABCDE'' cluster and is regulated by its own promoter P<sub>''cgeA''</sub>. The cluster ''cotVWXYZ'' contains the gene ''cotZ'' which is cotranscribed with ''cotY'' and regulated by the promoter P<sub>''cotYZ''</sub>. Another promoter of this cluster P<sub>''cotV''</sub> is responsible for the transcription of the other three genes. Those three promoters were [https://2012.igem.org/Team:LMU-Munich/Data/crustpromoters evaluated] with the ''lux'' reporter genes to get an impression of their strength and their time of activation (see for more details [http://partsregistry.org/Part:BBa_K823025 pSB<sub>''Bs''</sub>3C-''lux''ABCDE]) so they could be used for expression of spore crust fusion proteins.</p>  
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<p align="justify">The gene ''cgeA'' is located in the ''cgeABCDE'' cluster and is expressed from its own promoter P<sub>''cgeA''</sub>. The cluster ''cotVWXYZ'' contains the gene ''cotZ'' which is cotranscribed with ''cotY'' and expressed from the promoter P<sub>''cotYZ''</sub>. Another promoter of this cluster, P<sub>''cotV''</sub>, is responsible for the transcription of the other three genes (Fig. 2). Those three promoters were [https://2012.igem.org/Team:LMU-Munich/Data/crustpromoters evaluated] with the ''lux'' reporter genes ([http://partsregistry.org/Part:BBa_K823025 pSB<sub>''Bs''</sub>3C-''lux''ABCDE]) to analyze their strength and the time point of their activation (see data link zu daten). Based on this data two of the three promoters could be used for expression of spore crust fusion proteins.</p>  

Revision as of 00:03, 27 September 2012

iGEM Ludwig-Maximilians-Universität München Beadzillus

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The LMU-Munich team is exuberantly happy about the great success at the World Championship Jamboree in Boston. Our project Beadzillus finished 4th and won the prize for the "Best Wiki" (with Slovenia) and "Best New Application Project".

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