Team:LMU-Munich/Spore Coat Proteins

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==Spore Crust Proteins==
 
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<p align="justify">The aim of this project part is to create spores that display fusion proteins on their crust. There are several different proteins forming the spore coat layers of ''Bacillus subtilis'' spores. On the outermost layer, the so called spore crust, the CotZ and CgeA proteins are located ([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'' 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 evaluated with ''lux'' reporter genes to get an impression of their time of activation and their strength (see for more details [https://2012.igem.org/Team:LMU-Munich/Bacillus_BioBricks '''B'''acillus '''B'''io'''B'''rick '''B'''ox]) so they could be used for expression of spore crust fusion proteins.</p>  
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=='''Sporo'''beads - What Protein Do ''You'' Want to Display?==
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<p align="justify">'''Sporo'''beads are the first generation of ''Bacillus subtilis'' endospores displaying a protein of our choice on their outermost layer, the spore crust. In future '''Sporo'''beads could serve as a platform for protein display and thus be used for numerous versatile [https://2012.igem.org/Team:LMU-Munich/Application applications]. Our goal was to show that ''B. subtilis'' spores have the ability to do so. As a [https://2012.igem.org/Team:LMU-Munich/Spore_Coat_Proteins/result proof of principle] we successfully fused GFP to the spore crust and obtained fluorescence with microscopy.</p>
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<p align="justify">Our first step will be to  fuse GFP to these proteins to see if they appear on the spore surface and if there is any effect on spore formation. The next step will be to fuse proteins with special features to CotZ and CgeA to produce functional "SporoBeads."
 
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SporoBeads could be used to filter fluids or in the laboratory, and could be capable of:</p>
 
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- binding harmful viruses
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===Scientific Background===
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{| "width=100%" style="text-align:center;" style="align:right"|
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|<p align="justify">Introduction to ''B. subtilis'' spores  and their use in our project</p>
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|[[File:Imamura, 2011 &amp; McKenney, 2010.png|200px|right|link=Team:LMU-Munich/Spore_Coat_Proteins/Background]]
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! colspan="2" |[[File:LMU Arrow purple.png|40px|link=Team:LMU-Munich/Spore_Coat_Proteins/Background]]
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- binding toxic metals
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===Cloning Strategy===
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{| "width=100%" style="text-align:center;" style="align:right"|
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|<p align="justify">Cloning strategy to create different variants of our ''' Sporo'''beads</p>
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|[[File:Final construct.png|200px|link=Team:LMU-Munich/Spore_Coat_Proteins/cloning]]
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! colspan="2" |[[File:LMU Arrow purple.png|40px|link=Team:LMU-Munich/Spore_Coat_Proteins/cloning]]
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- binding plastic molecules
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===GFP as a Proof of Principle===
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- exposing enzymes
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{| "width=100%" style="text-align:center;" style="align:right"|
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|<p align="justify">Main results of the various constructs that were created to find the best one!</p>
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|[[File:LMU Firstspore.jpg|200px|right|link=Team:LMU-Munich/Spore_Coat_Proteins/result]]
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! colspan="2" |[[File:LMU Arrow purple.png|40px|link=Team:LMU-Munich/Spore_Coat_Proteins/result]]
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===Laccases as functional enzymes===
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{| "width=100%" style="text-align:center;" style="align:right"|
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|<p align="justify">Creation of functional Laccase-''' Sporo'''beads</p>
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|[[File:Final construct.png|200px|link=Team:LMU-Munich/Spore_Coat_Proteins/laccases]]
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! colspan="2" |[[File:LMU Arrow purple.png|40px|link=Team:LMU-Munich/Spore_Coat_Proteins/laccases]]
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'''Project Navigation'''
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===Purification Methods===
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|<p align="justify">Description of the different purification methods of the spores</p>
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|[[File:Treatments.png|200px|right|link=Team:LMU-Munich/Spore_Coat_Proteins/purification]]
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====Project Navigation====
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{| width="100%" align="center" style="text-align:center;"
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|[[File:Bacilluss_Intro.png|100px|link=Team:LMU-Munich/Bacillus_Introduction]]
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|[[File:BacillusBioBrickBox.png|100px|link=Team:LMU-Munich/Bacillus_BioBricks]]
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|[[File:SporeCoat.png|100px|link=Team:LMU-Munich/Spore_Coat_Proteins]]
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|[[File:GerminationSTOP.png|100px|link=Team:LMU-Munich/Germination_Stop]]
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|[[Team:LMU-Munich/Bacillus_Introduction|<font size="2">'''''Bacillus'''''<BR>Intro</font>]]
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|[[Team:LMU-Munich/Bacillus_BioBricks|<font size="2" face="verdana">'''''Bacillus'''''<BR>'''B'''io'''B'''rick'''B'''ox</font>]]
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|[[Team:LMU-Munich/Spore_Coat_Proteins|<font size="2" face="verdana">'''Sporo'''beads</font>]]
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|[[Team:LMU-Munich/Germination_Stop|<font size="2" face="verdana">'''Germination'''<BR>STOP</font>]]
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Latest revision as of 13:44, 14 November 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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