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Team:LMU-Munich/Lab Notebook/Protocols
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Revision as of 14:11, 25 September 2012
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".
[ more news ]
Protocols
On this page, we offer our unique protocols to the public.
Because Bacillus subtilis is our choice organism, we have focused on protocols specifically for Bacillus.
However below, you will also find other standard protocols we use.
Protocols for the work with B. subtilis
1. Growth, storage, media and components for Bacillus subtilis
This protocol gives the basic growth- and storage conditions, and the recipes for various media and the antibiotic concentrations used for B. subtilis.
2. Transformation of Bacillus subtilis
Protocol for the transformation of B. subtilis.
3. Isolation of chromosomal DNA from Bacillus subtilis for transformation
A quick protocol for how to isolate genomic DNA from B. subtilis to transform it to a different strain. By this means, you can very easily combine different B. subtilis genotypes. Transformation of genomic DNA is much more efficient than plasmids. Isolated DNA with this protocol is not clean!
How to work with integrative B. subtilis vectors and how to verify the integration.
5. Isolation of chromosomal DNA from Bacillus subtilis (for PCR....)
Isolation of pure genomic DNA from B. subtilis.
PCR protocol for long flanking homology PCR. You might need those PCR products for interrupting genes with resistance cassettes.
7. Clean deletion of genomic fragments in Bacillus subtilis
Protocol for the production of markerless gene deletions. You will need the [http://www.ncbi.nlm.nih.gov/pubmed/15528558 pMAD] plasmid. This method is more time consuming than inserting resistance cassettes but offers better cell perfomance.
Protocol to count efficiency of sporulation and germination.
9. Mikroskopie der Sporen
10. ß-Galactosidase Assay B. subtilis
Protocol how to measure lacZ gene activity in B. subtilis
11. Plate reader assay (can also be used with E. coli cells)
Other protocols we used
[http://partsregistry.org/Help:Protocols/Competent_Cells Competent Cells]
E.coli competent cells and transformation. We used the [http://ecoliwiki.net/colipedia/index.php/XL-1_Blue XL1 blue strain].
Alkaline Lysis Plasmid Preparation
Alkaline Lysis Plasmid Preparation for E. coli
[http://openwetware.org/wiki/Silver:_Restriction_Digest Ligation]
[http://openwetware.org/wiki/Silver:_Ligation Ligation]
Standard restriction digest and ligation. We often used longer incubation times (up to over night) and did not dephosphorylate the backbones, if they had incompatible sticky ends.
https://static.igem.org/mediawiki/2012/b/bb/LMU-Munich_2012_%C3%9F-Galactosidase_Assay_E._coli.pdf %C3%9F-Galactosidase Assay in E. coli]
lacZ-assay in E.coli
