Team:Bielefeld-Germany/Labjournal/week17

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==Week 17 (08/20 - 08/26/12)==
 
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===Monday August 20th===
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* '''Team Site Directed Mutagenesis:'''
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Plasmidisolation of X.camp_2247 1-4 and X.camp_3633 1-4
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Testrestriktion with PstI: - all negativ
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Colony-PCR of T10_NotI (24 Colonies) -all negativ
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* '''Team Cellulose Binding Domain:'''
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CBD: Colony-PCR of 24 Assembly-colonies - all colonies only have CBDclos. Assembly didn't work at all...
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===Tuesday August 21st===
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* '''Team Cellulose Binding Domain:''' Restriction of pSB1C3+CBDclos with EcoRI+AgeI-HF in Buffer 4 + BSA
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To test the Restriktion Enzymes - works
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* '''Team Activity Tests:''' I know, all of you are expecting us to report about some laccase activity now, but today is going to be different. Today we started with a special task: a q-PCR. As written in one of our last labjournal entries we have discussed a lot and searched for reasons why our laccases are not active. We decided that one possible step to find the mistake is to analyze the transcript. The level of mRNA will show us if our plasmid is expressed at all or if there might be something wrong with it. Team Cultivation cultivated small samples of E.coli KRX with plasmids of laccases from the following organisms:''Escherichia coli'', ''Bacillus pumilus'', ''Bacillus halodurans C-125'', ''Xanthomonas campestris pv. campestris B100'' and ''Thermus thermophilus''. As controls a sample with a [http://partsregistry.org/wiki/index.php/Part:BBa_K525710 ligase a] plasmid (to ensure the induction works) and ''E. coli KRX'' (without any plasmid) were used. So our first step today was freezing some cell pellets for a RNA isolation and ordering primers. We will go on with our new mission as soon as the primers arrive.
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<li><a href="https://2012.igem.org/Team:Bielefeld-Germany/Labjournal/Starting"><strong>Prologue</strong></a></li>
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                <li><a href="https://2012.igem.org/Team:Bielefeld-Germany/Labjournal/week1"><strong>Week 1</strong></a></li>
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                <li><a href="https://2012.igem.org/Team:Bielefeld-Germany/Labjournal/week2"><strong>Week 2</strong></a></li>
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<li><a href="https://2012.igem.org/Team:Bielefeld-Germany/Labjournal/week3"><strong>Week 3</strong></a></li>
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<li><a href="https://2012.igem.org/Team:Bielefeld-Germany/Labjournal/week4"><strong>Week 4</strong></a></li>
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<li><a href="https://2012.igem.org/Team:Bielefeld-Germany/Labjournal/week5"><strong>Week 5</strong></a></li>
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<li><a href="https://2012.igem.org/Team:Bielefeld-Germany/Labjournal/week6"><strong>Week 6</strong></a></li>
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<li><a href="https://2012.igem.org/Team:Bielefeld-Germany/Labjournal/week7"><strong>Week 7</strong></a></li>
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<li><a href="https://2012.igem.org/Team:Bielefeld-Germany/Labjournal/week8"><strong>Week 8</strong></a></li>
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<li><a href="https://2012.igem.org/Team:Bielefeld-Germany/Labjournal/week9"><strong>Week 9</strong></a></li>
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<li><a href="https://2012.igem.org/Team:Bielefeld-Germany/Labjournal/week10"><strong>Week 10</strong></a></li>
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<li><a href="https://2012.igem.org/Team:Bielefeld-Germany/Labjournal/week11"><strong>Week 11</strong></a></li>
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<li><a href="https://2012.igem.org/Team:Bielefeld-Germany/Labjournal/week12"><strong>Week 12</strong></a></li>
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<li><a href="https://2012.igem.org/Team:Bielefeld-Germany/Labjournal/week13"><strong>Week 13</strong></a></li>
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<li><a href="https://2012.igem.org/Team:Bielefeld-Germany/Labjournal/week14"><strong>Week 14</strong></a></li>
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<li><a href="https://2012.igem.org/Team:Bielefeld-Germany/Labjournal/week15"><strong>Week 15</strong></a></li>
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<li><a href="https://2012.igem.org/Team:Bielefeld-Germany/Labjournal/week16"><strong>Week 16</strong></a></li>
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<li><a href="https://2012.igem.org/Team:Bielefeld-Germany/Labjournal/week17"><strong>Week 17</strong></a></li>
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<li><a href="https://2012.igem.org/Team:Bielefeld-Germany/Labjournal/week18"><strong>Week 18</strong></a></li>
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<li><a href="https://2012.igem.org/Team:Bielefeld-Germany/Labjournal/week19"><strong>Week 19</strong></a></li>
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<li><a href="https://2012.igem.org/Team:Bielefeld-Germany/Labjournal/week20"><strong>Week 20</strong></a></li>
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<li><a href="https://2012.igem.org/Team:Bielefeld-Germany/Labjournal/week21"><strong>Week 21</strong></a></li>
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<li><a href="https://2012.igem.org/Team:Bielefeld-Germany/Labjournal/week22"><strong>Week 22</strong></a></li>
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==Week 17 (08/20 - 08/26/12)==
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* '''Team Bacterial Laccases:'''
 
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** We realized that the primer pairs we anneal for the promoter parts had about 2000 ng/µl if diluted 1:10. So now we try a dilution of 1:1000.
 
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** PCRs of different laccases were purificated and digested for suffix insertion.
 
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** Ligation of the laccase genes from ''E.coli'' and ''B. pumi'', the 1:000 diluted (0,1 pm/µl) promoters (pT7 and P110) in pSB1C3 vector.
 
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* '''Team Fungal Laccases:'''
 
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** We designed primers for the laccase BBa_K50002 for cloning in ''P. pastoris'' shuttle vector.
 
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===Wednesday August 22nd===
 
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'''Street Science:'''
 
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Went to Dr. Joe Max Risse today and asked him about the mircoorganisms of the Fermentationgroup. He recommended ''Euglena gracilis'', since it is without risk, big, colorful, and very healthy under the microscop.
 
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I asked for the bacteria they have and he told me I could check if their ''Kocuria rosea'' is a wild type.
 
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In the DMSZ catalog there are three strains of ''Kocuria rosea'' and all have been assessed to be of riskgroup 1, which is the safest group of bacteria and means it is unlikely that it will infect humans.
 
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I also asked for ''Penicillium chrysogenum'' but the one they use is a GVO.
 
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* '''Team Site Directed Mutagenesis:'''
 
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Ordered new primers for Xantomonas Campestris SDM, since there is still no positiv coloniy and even gradient-PCR gave the wrong product
 
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* '''Team Cellulose Binding Domain:'''
 
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Test-restriktion of all isolated CBDcex- and the GFP_Freiburg-plasmids with NotI - no positiv result
 
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Started new and made a gradient PCR for GFP-Freiburg and CBDcex (50-70°C)
 
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===Thursday August 23rd===
 
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===Friday August 24th===
 
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===Saturday August 25th===
 
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===Sunday August 26th===
 
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Sunday
 
{{Team:Bielefeld/Sponsoren}}
{{Team:Bielefeld/Sponsoren}}

Latest revision as of 21:27, 25 September 2012


Week 17 (08/20 - 08/26/12)

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About our Wiki

Fifteen students from different fields of study from the Bielefeld University aspired to complete a project called TOXIC COMPOUNDS IN NATURAL WATER - A CASE FOR LACCASE. In his Wiki we document our achievements and our approach.

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