Team:Goettingen/week20-2

V09_10

• Experiment:
  Plasmids were prepped using PeqGOLD MiniPrep Kit (Peqlab) accirding to the manual.

• Experiment:
  Test digestion of pSB1C3 (including motA, motB or yhjH) with the restriction enzymes EcoRI and PstI. Afterwards, the product was loaded in a 1% analytical gel in order to verify its success.
  
• Observations & Results:
  The digestion worked for all clones since fragments with the appropriate size were produced over all.

• Experiment:
  motA, motB or yhjH were digested with XbaI and PstI. The plasmids with the different promoters were treated with SpeI and PstI. The digestion was then controlled via gel-electrophoresis.
  
• Observations & Results:
  Since for all clones band of the expected size could be obtained these were isolated from the gel and purified using PeqGOLD Gelextraction Kit (Peqlab) according to the manual.

• Experiment:
  This the Quikchange PCR was performed using the designed primers and a new Pfu Turbo polymerase (see Quick Change protocol in "protocols"). Also this time four short fragments were produced first and subsequently combined to a complete final DNA fragment.
  
• Observations & Results:
  Once again the QC PCR failed for no PCR product was observed. Whether the primers, the enzyme or anything else cause the QC PCRs failure is not clear to us yet.

V09_11

• Experiment:
  motA, motB and yhjH were ligated nto the plasmid J61002 with different promoters (20E, 20I and 18C) according to the protocol.
  

• Experiment:
  The ligation products were transformed into the E. coli DH10B as described in the standard protocol.
• Observations & Results:
  The transformation was successful since numerous colonies were grown on all plates except for the negative control.

• Experiment:
  After consultation with our supervisor we decided to give the QC PCR another try using Phusion polymerase this time. The first reaction round resulting in the production of the four short fragments was prepared according to the protocol and subsequently analyzed on gel.
  
• Observations & Results:
  This time the QC PCR was successful! The gel showed stron bands of the expected size. Obviously the Pfu Turbo polymerase, which is known to be perfect for Quikchange was the reason for the previous failures.

V09_12

• Experiment:
  Since the first round of amplifications was successful, the samples 1 and 2 as well as 3 and 4 were combined via overlapping PCR. Afterwards, the samples 1+2 and 3+4 were combined as well. The success of both reactions was investigated via agarose gel electrophoresis.
• Observations & Results:
  Both reactions were successful. We were able to receive fragments of a reasonable size.

• Experiment:
  In order to clone yhjH behind different promoter a digestion with XbaI and PstI was performed according to the protocol. The restriction product was subsequently loaded on a 1% agarose gel, cut out and purified using the PeqGOLD Gelextraction Kit (Peqlab).
• Observations & Results:
  The digestion was successful for bands of the correct size could be observed.

• Experiment:
  yhjH was ligated into the plasmid J61002 behind the promoters 20E, 20I and 18C according to the protocol.

• Experiment:
  In order to bring the promoters of the BioBrick library we used for our experiments on the new BioBrick standard the parts as well as pSB1C3 were digested with EcoRI and PstI as described in the protocol. The restriction products were subsequently loaded on a 1% agarose gel, cut out and purified using the PeqGOLD Gelextraction Kit (Peqlab).
• Observations & Results:
  The digestion was successful for bands of the correct size could be observed.

• Experiment:
  The eight RFP-promoter constructs were ligated into the vector pSB1C3 according to the protocol.

• Experiment:
  Minipreps of motA, motB and RFP in pSB1C3 were conducted using the PeqGOLD MiniPrep Kit (Peqlab) according to the user manual.

V09_13

• Experiment:
  The transformation was performed as described in the protocol.
• Observations & Results:
  successful?

• Experiment:
  In order to clone fliC into pSB1C3 the product of the QC PCR was digested with EcoRI and PstI according to the protocol. The restriction products were subsequently leaded on a 1% agarose gel, cut out and purified using the PeqGOLD MiniPrep Kit (Peqlab) according to the user manual.
• Observations & Results:
  The digestion was successful since fragments of the expected size could be obtained.

• Experiment:
  For the ligation of fliC into the vector pSB1C3 the protocol was followed.

• Experiment:
  The following over night cultures were prepared:
  Psb1c3-MotA
  in DH10B and BL21 Psb1c3-MotB
  in DH10B and BL21 BL21
  DH10B