Team:LMU-Munich/Data/Sporepurification
From 2012.igem.org
(17 intermediate revisions not shown) | |||
Line 1: | Line 1: | ||
{{:Team:LMU-Munich/Templates/Page Header|File:Team-LMU_Photo2.jpg}} | {{:Team:LMU-Munich/Templates/Page Header|File:Team-LMU_Photo2.jpg}} | ||
+ | |||
+ | |||
+ | [[File:SporeCoat.png|100px|right|link=Team:LMU-Munich/Spore_Coat_Proteins]] | ||
+ | |||
Line 6: | Line 10: | ||
- | <p align="justify">To | + | <p align="justify">To be able to use our '''Sporo'''beads, we have to make ensure that all remaining vegetative cells in the culture need to be thoroughly removed. In order to purify our spores, we treated culture samples that were grown for 24 hours in Difco Sporulation Medium (see [https://static.igem.org/mediawiki/2012/e/e9/LMU-Munich_2012_Protocol_for_enhancement_of_mature_spore_numbers.pdf protocol for enhancement of mature spore numbers]) with three different methods: French Press, sonification and lysozyme. The results are shown in the following table.</p> |
+ | |||
{| class="colored" width="100%" align="center" style="text-align:center;" | {| class="colored" width="100%" align="center" style="text-align:center;" | ||
Line 25: | Line 30: | ||
|0.04 ''x'' 10<sup>8</sup> /ml <br><font size="2"> 0.55% </font> | |0.04 ''x'' 10<sup>8</sup> /ml <br><font size="2"> 0.55% </font> | ||
|- | |- | ||
- | !untreated <font color="#EBFCE4" size="2">P<sub>''cotYZ''</sub>-''cotZre''-''gfp''- | + | !untreated <font color="#EBFCE4" size="2">P<sub>''cotYZ''</sub>-''cotZre''-''gfp''-terminator</font> |
|6.79 ''x'' 10<sup>8</sup> /ml | |6.79 ''x'' 10<sup>8</sup> /ml | ||
|1 ''x'' 10<sup>8</sup> /ml <br><font size="2"> 14.72% </font> | |1 ''x'' 10<sup>8</sup> /ml <br><font size="2"> 14.72% </font> | ||
Line 35: | Line 40: | ||
|0.05 ''x'' 10<sup>8</sup> /ml <br><font size="2"> 1% </font> | |0.05 ''x'' 10<sup>8</sup> /ml <br><font size="2"> 1% </font> | ||
|- | |- | ||
- | !French Press <font color="#EBFCE4" size="2">P<sub>''cotYZ''</sub>-''cotZre''-''gfp''- | + | !French Press <font color="#EBFCE4" size="2">P<sub>''cotYZ''</sub>-''cotZre''-''gfp''-terminator</font> |
|4.75 ''x'' 10<sup>8</sup> /ml | |4.75 ''x'' 10<sup>8</sup> /ml | ||
|1.88 ''x'' 10<sup>8</sup> /ml <br><font size="2"> 39.58% </font> | |1.88 ''x'' 10<sup>8</sup> /ml <br><font size="2"> 39.58% </font> | ||
Line 45: | Line 50: | ||
|0.1 ''x'' 10<sup>8</sup> /ml <br><font size="2"> 2% </font> | |0.1 ''x'' 10<sup>8</sup> /ml <br><font size="2"> 2% </font> | ||
|- | |- | ||
- | !Sonification <font color="#EBFCE4" size="2">P<sub>''cotYZ''</sub>-''cotZre''-''gfp''- | + | !Sonification <font color="#EBFCE4" size="2">P<sub>''cotYZ''</sub>-''cotZre''-''gfp''-terminator</font> |
|6.72 ''x'' 10<sup>8</sup> /ml | |6.72 ''x'' 10<sup>8</sup> /ml | ||
|1.53 ''x'' 10<sup>8</sup> /ml <br><font size="2"> 22.77% </font> | |1.53 ''x'' 10<sup>8</sup> /ml <br><font size="2"> 22.77% </font> | ||
Line 55: | Line 60: | ||
|0 /ml | |0 /ml | ||
|- | |- | ||
- | !Lysozyme <font color="#EBFCE4" size="2">P<sub>''cotYZ''</sub>-''cotZre''-''gfp''- | + | !Lysozyme <font color="#EBFCE4" size="2">P<sub>''cotYZ''</sub>-''cotZre''-''gfp''-terminator</font> |
|1.05 ''x'' 10<sup>8</sup> /ml | |1.05 ''x'' 10<sup>8</sup> /ml | ||
|1.05 ''x'' 10<sup>8</sup>/ml <br><font size="2"> 100% </font> | |1.05 ''x'' 10<sup>8</sup>/ml <br><font size="2"> 100% </font> | ||
Line 62: | Line 67: | ||
|} | |} | ||
- | |||
+ | <p align="justify">The data demonstrates that after treatment with French Press and ultrasound (sonification) the number of spores compared to the untreated samples were increased. We assume this to be an experimental artifact, since it was not always possible to distinguish between mature spores and cell debris during counting. However, a huge difference between the number of vegetative cells and spores was observed for lysozyme-treated samples as visualized in the pictures below (Fig. 1). Because the lysed vegetative cells, it was easy to recognize the mature spores. | ||
+ | </p> | ||
+ | {| style="color:black;" cellpadding="3" width="100%" cellspacing="0" border="0" align="center" style="text-align:left;" | ||
+ | | style="width: 100%;background-color: #EBFCE4;" | | ||
+ | {| | ||
+ | |[[File:Treatments.png|610px|center]] | ||
+ | |- | ||
+ | | style="width: 70%;background-color: #EBFCE4;" | | ||
+ | {| style="color:black;" cellpadding="0" width="70%" cellspacing="0" border="0" align="center" style="text-align:center;" | ||
+ | |style="width: 70%;background-color: #EBFCE4;" | | ||
+ | <font color="#000000"; size="2">Fig. 1: Phase contrast pictures after different treatments</font> | ||
+ | |} | ||
+ | |} | ||
+ | |} | ||
+ | <p align="justify">Next, we tested the fluorescence of '''Sporo'''beads after lysozyme treatment. This analysis revealed that lysozyme did not harm the gfp-fusion proteins, since fluorescence was not altered (see Fig. 2).</p> | ||
- | |||
+ | {| style="color:black;" cellpadding="3" width="70%" cellspacing="0" border="0" align="center" style="text-align:left;" | ||
+ | | style="width: 100%;background-color: #EBFCE4;" | | ||
+ | {| | ||
+ | |[[File:Fluorescence after lysozyme.png|400px|center]] | ||
+ | |- | ||
+ | | style="width: 70%;background-color: #EBFCE4;" | | ||
+ | {| style="color:black;" cellpadding="0" width="90%" cellspacing="0" border="0" align="center" style="text-align:center;" | ||
+ | |style="width: 70%;background-color: #EBFCE4;" | | ||
+ | <font color="#000000"; size="2"><p align="justify">Fig. 2: Fluorescence of wild type spores and '''Sporo'''beads after treatment with lysozyme. '''Sporo'''beads still show undeminished fluorescence activity. </p></font> | ||
+ | |} | ||
+ | |} | ||
+ | |} | ||
Line 76: | Line 106: | ||
[[File:Arrow purple Data.png|center|100px|link=Team:LMU-Munich/Data]] | [[File:Arrow purple Data.png|center|100px|link=Team:LMU-Munich/Data]] | ||
- | |||
- | |||
- | |||
- | |||
- | |||
- | |||
{{:Team:LMU-Munich/Templates/Page Footer}} | {{:Team:LMU-Munich/Templates/Page Footer}} |
Latest revision as of 13:37, 26 October 2012
![Team-LMU Photo2.jpg](/wiki/images/a/a0/Team-LMU_Photo2.jpg)
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 ]
![Sporenfreunde](https://static.igem.org/mediawiki/2012/e/e3/Team_LMU_Sporenfreunde.png)
Sporobead purification
To be able to use our Sporobeads, we have to make ensure that all remaining vegetative cells in the culture need to be thoroughly removed. In order to purify our spores, we treated culture samples that were grown for 24 hours in Difco Sporulation Medium (see protocol for enhancement of mature spore numbers) with three different methods: French Press, sonification and lysozyme. The results are shown in the following table.
all cells | mature spores | immature spores | |
---|---|---|---|
untreated wildtype | 7.29 x 108 /ml | 1 x 108 /ml 13.71% | 0.04 x 108 /ml 0.55% |
untreated PcotYZ-cotZre-gfp-terminator | 6.79 x 108 /ml | 1 x 108 /ml 14.72% | 0.13 x 108 /ml 1.9% |
French Press wildtype | 4.87 x 108 /ml | 2.1 x 108 /ml 43% | 0.05 x 108 /ml 1% |
French Press PcotYZ-cotZre-gfp-terminator | 4.75 x 108 /ml | 1.88 x 108 /ml 39.58% | 0.05 x 108 /ml 1% |
Sonification wildtype | 4.6 x 108 /ml | 1.22 x 108 /ml 26.52% | 0.1 x 108 /ml 2% |
Sonification PcotYZ-cotZre-gfp-terminator | 6.72 x 108 /ml | 1.53 x 108 /ml 22.77% | 0.23 x 108 /ml 3% |
Lysozyme wildtype | 2.48 x 108 /ml | 1.58 x 108 /ml 63.7% | 0 /ml |
Lysozyme PcotYZ-cotZre-gfp-terminator | 1.05 x 108 /ml | 1.05 x 108/ml 100% | 0 /ml |
The data demonstrates that after treatment with French Press and ultrasound (sonification) the number of spores compared to the untreated samples were increased. We assume this to be an experimental artifact, since it was not always possible to distinguish between mature spores and cell debris during counting. However, a huge difference between the number of vegetative cells and spores was observed for lysozyme-treated samples as visualized in the pictures below (Fig. 1). Because the lysed vegetative cells, it was easy to recognize the mature spores.
|
Next, we tested the fluorescence of Sporobeads after lysozyme treatment. This analysis revealed that lysozyme did not harm the gfp-fusion proteins, since fluorescence was not altered (see Fig. 2).
|