Team:Macquarie Australia/WetLab/Notebook

From 2014.igem.org

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<p><i><b>Figure2:</b> The next step was to rePCR G1+PCR1 with BBF + HR2 and BBvF + HR2, gel extraction of G2+(G3/H2) and G4+(G5/G6) ,ChlD 2 and 3. </i></p>
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<p>The next step was to rePCR G1+PCR1 with BBF + HR2 and BBvF + HR2, gel extraction of G2+(G3/H2) and G4+(G5/G6) ,ChlD 2 and 3.</p>
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Revision as of 02:03, 18 October 2014

The Notebook

Welcome to our Notebook! This page has been created to detail our projects progress since its conception. Click on the section titles below to expand pages that contain information regarding what we worked on and achieved each week. For a more detailed summary of what we achieved please visit the Results page.

November 2013

Week 1

Biobrick stocktake of 2013 iGEM Macquarie_Australia parts: 11/11/13

  • ChlG - sufficient plasmid stock
  • DVR1 - sufficient plasmid stock
  • ChlM - sufficient plasmid stock
  • ChlI2 - need more plasmid stock
  • POR- need more plasmid stock
  • YCF - need more plasmid stock
  • Plasto - need more plasmid stock
  • GUN4- need more plasmid stock
  • CTH1 - need more plasmid stock
  • ChlD - need more plasmid stock. Question whether the 2013 part is really the reported sequence - something appears to be missing.

Send all for re-sequencing to verify DNA sequence as per registry entries.
DVR1 re-tranformation: Was re-done using gibson assembly and then transformed.

Week 2

Sequencing Results: all parts except ChlD were correct.

ChlD Fix: ChlD is missing 50 bp. Strategy to correct is to use ApaI and MluI restriction enzymes to cut out 50bp from clone of ChlD in pET vector from Willows group and re-insert into our BioBrick vector.

ApaI and MluI were used in a single digest according to manufacturer's instructions and as per ligation protocol on methods wiki. Fragments run on 1% agarose and gel purified. However, digestions were incomplete as viewed on agarose gel. Need to do separate digests for next attempt.

Double restriction enzyme digest was carried out to combine PCR1 and Gblock2. After the two sections were ligated and extended, straight PCR was done. The PCR worked as judged by agarose gel.

Week4

Tuesday: 26/11/13 Composite parts Assembly

Biobrick (BB) ChlI1 is combined with ChlI2 biobrick in AMP backbone. Method is via 3A assembly. Use 500ng of each part and insert into 500ng of amp backbone. Ligation for 16oC for 30 mins then 80oC for 20 mins. Leave plates over weekend at room temperature.

Growth on plates : 1 colony on low plate, hundreds on high plate.

Assembly of ChlH: PCR of individual fragments from ChlH: 29/11/13
  • G1 - G1F + G1R
  • G2 - G2F+ G2R
  • G3 - G3F + G4R
  • G4 - G4F+ G4R
  • G5 - G5F + G5R
  • G6 - G6F + G6R
  • PCR1+ G2- H1F+ G2R
  • (PCR1 + G2) + G1
  • G3 + PCR2- G3F+ H2R
  • G5 + G6- G5F +G6R

Increase stocks : Did plasmid preps to get more of: ChlI1; ChlI2; YCF54; ChlP, DVR1; POR

ChlH Biobrick correction

Attempt to make ChlH (BBa_K1080001) using combination of gblocks and PCR products, as designed by Macquarie_Australia 2013 iGEM team.

Assembly strategy is: G-Block –1 (470bp) + PCR-1 (304bp) + G-Block-2 (499bp) + G-Block-3 (499bp) + PCR-2 (984bp) + G-Block-4 (500bp) + G-Block-5 (481bp) + PCR-3 (673bp)

Extremely faint bands are seen for

Friday: 29/11/13

Another attempt to assemble chlD from PCR fragments

  • G Block 1
  • G Block 4
  • G4 + (G5-G6)
  • G1 + PCR1
  • G2 + (G3 + PCR2)
Figure 1 Extremely faint bands seen for ChlD amplification. G1 and G4 appear to work but bands are very faint on agarose gel. Faint to no bands viewed for G2 and G3+PCR2. Reattempt necessary.

December 2013

Week 1

Friday: 06/12/13 Digestion & Ligation of ChlM gene of lac promoter into CAM backbone

ChlM in AMP backbone vector and lac in backbone were digested using iGEM restriction digestion protocol EcoRI and Pst1 restriction enzymes.

Small amount of growth seen on ChlM, lacA & lacB indicating that they were successfully incorporated into the DHS← cells. Sequencing to confirm required

Transformation of Kanamycin Resistant backbone

We need more of the kanamycin biobrick. Transformation of kanamycin backbone into E. coli cells to produce large amounts of KAN backbone for future ligations.

Monday

09/12/13

PCR reaction for ChlH and ChlD

The overall of the aim of the week was to build ChlH fragment and PCR ChlD. Using the standard PCR protocol, G1+H1, G2 (G3+H2), G4 (G5+G6), ChlD (2) and ChlD (3) were run.

The result showed another G1+PCR1 failure. It was also suggested however to use BioBrick primers. Distinct bands for G2+(G3/PCR2) and G4+(G5/G6) were present and proved correct. This assumption was made that these results were correct.

ChlD 2 and 3 showed a band present at approximately 1500 bp which was also assumed to be correct in relation to the actual size of 1681 bp.

Figure2: The next step was to rePCR G1+PCR1 with BBF + HR2 and BBvF + HR2, gel extraction of G2+(G3/H2) and G4+(G5/G6) ,ChlD 2 and 3.

January 2014

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February 2014

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August 2014 - Week 1

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