Team:Alberta/Notebook June

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genomikon


June 2010

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iGEM 2010 Notebook

The lab notebook chronicles our journey in the creation of the Genomikon kit. Many paths were woven together in space and time to reach this finished masterpiece. To help you navigate through these trials with us we have laid out our notebook in a layered fashion. This page gives a sketch of each project and how it interacts with each other. Then follow the links to a projects page for time line of the major landmarks and accomplishments. If you require more details on the project the links within that page will take you to our day-by-day work log.

Building Parts

The Building Parts project was responsible to first build a plasmid (plasmid 01)that contained our own specialized prefix and suffix nested inside of the standard BioBrick prefix and suffix. After plasmid 01 existed we inserted the CcdB gene (the "death" gene) between our prefix and suffix removing the gene for Kanamycin resistance (plasmid 02). Plasmid 02 is fantastic base plasmid from which we are able to amplify any part at all because it provides a positive selection marker when transformed into DH5α. At this point we were able to make parts en masse to put in our kit. After obtaining a particular part in a plasmid we PCRed the part and digested it ready to use in Assembly or to Test the plasmid.

Testing Parts

Before we were able to test parts we created 2 base testing plasmids (vector 01 and vector 02). Vector 01 is designed to test Open Reading Frame parts, or parts that code for proteins. The part is flanked by a promoter and the start codon on one side and a stop codon and terminator on the other. Vector 02 is designed to test linker parts, or parts that control the expression of the Open Reading Frame parts they are next two. In Vector 02 the part is flanked by two distinct reporter genes, that by comparing the relative expression of the 2 reporter genes we can determine the behavior of the linking part.

Assembly Method

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Plates

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Competent Cells

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Software

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June 1, 2010


Building Parts

KanA/B' and KanB/A' fragements PCRed on 11-05-2010, digested with BsaI-HF at 37oC for 1.5hours, heat inactivated at 65oC for 30 minutes. Tried to ligate KanA/B' fragments to each other and tried to ligate KanB/A' fragments to each other. Also tried to ligate KanA/B' fragments with KanB/A'. Ligated with T4 DNA ligase for 3 hours at 21oC.

Set up liquid cultures of KanRA/B'-Bsa and KanR B/A'-Bsa in pSB1C3 from plates streaked with on 30-05-2010.

June 2, 2010


Building Parts

Miniprepped liquid cultures from 01-06-2010. Ran a 1% agarose gel of the ligations performed 01-06-2010.

To optimize the Restriction and ligation of BsaI-HF, digested KanA/B' and KanB/A' fragements PCRed on 11-05-2010 with the following recipe:

Digestion Recipe:

    14μL either A/B' or B/A' Kanamycin resistance cassette (approx. 100ng/μL)
    5μL 1/10 dillution of 100X BSA
    5μL 10X NEBuffer4
    1.5&mu:L BsaI-HF
    24.5μL MilliQ

Digested at 50oC for 1hour, heat inactivated the enzyme at 65oC for 20 minutes PCR purified the digests.

June 3, 2010


Building Parts

Tried to ligate the KanA/B' fragments to itself. Tried to ligate the KanB/A' fragments to itself. Tried to ligate the KanA/B' fragments to the KanB/A' fragments.

Ligation Recipe:

    8μL of digest from 02-06-2010 (either 8μL of one of the fragments or 4μL of each)
    1μL T4 DNA ligase
    6μL 5X Buffer
    15μL MilliQ H2O

Took aliquots of ligations at varying times and ran 1% agarose gels to test ligation.

Digested some of Minipreps of the KanA/B' fragment inserted into pSB1C3 from 02-06-2010.

Digestion Recipe:

    14μL plasmid (approx 300-400ng/&mu:L)
    5μL 10X NEBuffer 4
    5μL 1/10 dilution of 100X BSA
    1.5μL BsaI-HF
    24.5μL MilliQ H2O

Made a 1/100 dilution of AmpR and TetR PCR Products from 27-05-2010 and performed PCR reactions to produce antibiotic inserts to make parts.

PCR Recipe:

    35.5μL MilliQ H2O
    1μL 10 uM dNTPs
    5μL 10X PCR Buffer
    2μL 50 uM MgCl2
    2.5μL Primer + (ApR 1/10+ or TR 1/10+)
    2.5μL Primer - (ApR 1/10- or TR 1/10-)
    1μL Template (1/100 diluted AmpR or TetR)
    0.5μL Taq Polymerase

PCR Program:

    5 min-94oC
    45 sec-94oC
    1 min-60oC
    1 min-72oC
    Repeat 2 through 4 35 times
    5 min-72oC

June 4, 2010


Building Parts

Tried to test the limits of ligation reaction. Ligation Recipe of plasmids cut on 03-06-2010:

    8μL digestion mixture
    6μL 5X T4 ligase buffer
    1μL T4 ligase
    15μL MilliQ

Tried to further reaction of KanA/B' fragments to KanB/A' fragments. To the existing Ligase reactions from 03-06-2010 added:

    1μL T4 ligase
    6μL 5X T4 ligase buffer
    23μL MilliQ

Tried to set limits of Kan fragments that would ligate:

    24μL digestion from 02-06-2010 (either 24μL of one of the fragments or 12μL of each)
    6μL 5X T4 ligase buffer
    1μL T4 ligase

June 8, 2010


Testing Parts

To test the function of E.coli smell variant experiments for our kit, BBa_J45120 (Wintergreen) and BBa_J45200 (Banana) from the MIT 2006 BioBrick Registry were transformed in DH5α cells.

June 9, 2010


Building Parts

Restriction Digested AmpR and TetR inserts from 03-06-2010 to be ligated with psB1C3 vector later on.

Digestion Recipe for AmpR:

    13.4μL MilliQ H2O
    0.60&mu:L AmpR (333.3 ng/μL, determined by nanodrop)
    2μL 10X BSA
    2μL 10X Buffer 4
    2μL BsaI

Digestion Recipe fro TetR:

    13.3μL MilliQ H2O
    0.7&mu:L TetR (571.3 ng/μL, determined by nanodrop)
    2μL 10X BSA
    2μL 10X Buffer 4
    2μL BsaI

Both digestions were incubated at 50oC for 1hour, heat inactivated the enzyme at 70oC for 20 minutes.

June 10, 2010


Building Parts

Double Digested Kan/Chlor minipreps to determine orientation.

Digestion Recipe:

    5μL 10X Buffer 3
    1μL XbaI
    1μL PstI
    5μL Kan/Chlor fragments
    33μL MilliQ H2O
    5μL 10X BSA

Incubated at 37oC for 1hour, heat inactivated the enzyme at 80oC for 20 minutes.

<---gel image of 10.06.10 Karina1--->

Restriction Digested A/B' psB1C3 vector.

Digestion Recipe:

    10μL MilliQ H2O
    5&mu:L psB1C3
    2μL 10X BSA
    2μL 10X Buffer 4
    1μL BsaHF

Incubated at 37oC for 1hour, heat inactivated the enzyme at 80oC for 20 minutes.

Ligated digested A/B' psB1C3 with AmpR from 09-06-2010.

Ligation Recipe:

    9μL A/B' psB1C3 vector
    5μL AmpR insert
    6μL 5X Ligase Buffer
    1μL Ligase
    9μL MilliQ H2O

Incubated at room temperature for 45 minutes. Transformed with DH5α cells using 15μL of the ligated A/B' psB1C3 with AmpR.

June 11, 2010


Building Parts

We got colonies of psB1C3 with AmpR from the DH5α transformations from 10-06-2010. We made overnights.

Testing Parts

We experimented with L'Oreal skin toner LB media to see if BBa_J45120 plasmids from 08-06-2010 would produce a wintergreen odor. We incubated cultures in L'Oreal LB in a 5%, 10% and 15% concentration.

June 12, 2010


Building Parts

Miniprep of psB1C3 with AmpR was made from the overnights from 11-06-2010.

Testing Parts

L'Oreal LB cultures from 11-06-2010 had little growth success. Two of the 5% L'Oreal LB cultures grew.

June 16, 2010


Building Parts

psB1C3 with AmpR miniprep from 12-06-2010 ran undigested on a 1% agarose gel.

We digested psB1C3 with AmpR to see if the AmpR insert would be released from the psB1C3 vector.

Digestion Recipe:

    14.1μL MilliQ H2O
    0.9μL psB1C3 with AmpR (222.5 ng/μL, determined by nanodrop)
    2μL 10X BSA
    2μL 10X Buffer 4
    1μL BsaI

Incubated at 50oC for 1hour, heat inactivated the enzyme at 65oC for 30 minutes.

Also, we made more overnights of psB1C3 with AmpR.

June 17, 2010


Building Parts

Digested psB1C3 with AmpR from 16-06-2010 was ran on a 1% agarose gel.

June 28, 2010


Building Parts

Transformed 2009 Cambridge color series parts: Bba_K274100, BBa_K274200, BBa_K274002, BBa_K274003, BBa_K274004, BBa_J23100. Also transformed 2004 UTAustin BBa_M30109. Transformed using 5uL of DNA.

Made starter culture of Dbl3 in LB at 11:03am. Inoculated large overnight liquid culture as per specifications in Inoue method at 6:00pm

Performed an enzyme efficiency experiment to determine which of BbsI, BfuAI, BsaI, or BsaI-HF works most efficiently.

June 29, 2010


Building Parts

Made a glycerol stock of PL5 from 1.5mL liquid overnight made 28-06-2010.

Took remaining transformation of Dbl3 cells with ccdB BfuA/B' and ccdB BfuB/A' from 28-06-2010 out of the fridge and plated 25, 50 and 100μL of each on chloramphenicol LB plates

From the chloramphenicol and chloramphenicol/Kanamycin plates streaked with ccdB BbsA/B', ccdB BbsB/A',ccdB BsaA/B' and ccdB BsaB/A' on [[#28-06-2010|28-06-2010]], only ccdB BsaB/A' #6,8,10,11,12,14,15,18, ccdB BbsA/B' #8,15 and 20 grew on only the chloramphenicol plate. Made 5mL overnight liquid cultures with chloramphenicol of the some of the streaks that worked (ccdB BsaB/A' #6,8,10,11,12, ccdB BbsA/B' # 15, 20 and ccdB BsaB/A'#5 which didn't work but is a positive control).

Miniprepped liquid culture grown 28-06-2010 of Kan BsaA/B' #7. Concentration is 293.4ng/μL.

All the transormations of Cambridge 1009 color series performed 28-06-2010 worked. Made 5mL liquid cultures of each part.

Made competent Dbl3 cells by the Inuoe method from liquid cultures grown overnight. (set up on 28-06-2010). The OD of the culture was 0.775.

June 30, 2010


Building Parts

We Ran enzyme efficiency experiment with the same specifications as on 28-06-2010 but omitting BsaI-HF from the experiment because BsaI, BbsI and BfuAI appear to be the best of the enzymes. Also we ran the experiment with 10 Units of each enzyme not 20 Units.

Miniprepped liquid cultures of ccdB Bbs A/B' # 15 and 20 and of ccdB BsaB/A'#6, 8, 10, 11, 12 and 5 (which did grow on both Kan/Chlor and Chlor plates, so it is a positive control for the incorrect plasmid) grown 29-06-2010. The concentrations of the minipreps were between 200 and 400ng/mu;L and the curves did not show contamination. Digested approximately 500ng of minipreps with EcoRI and PstI with the following recipe:

    19.5μL MilliQ H2O
    2.5&mu:L Miniprep
    3μL 10X BSA
    3μL 10X NEBuffer 3
    1μL EcoRI
    1μL PstI

made 5mL culture of Kan BbsA/B' #1 from

Ya! We got colonies of the ccdB BfuA/B' an ccdB BfuB/A' part plasmids that were plated 29-06-2010.

Miniprep of liquid cultures made 29-06-2010 of transformations of Cambridge 2009 color series. Concentrations are as follows: J23100, 397.7 ng/μL; K274100, 388.9ng/μL; K274200, 556.5ng/μL; K274004, 106.1ng/μL; K130109, 82.5ng/μL; K274003, 161.0ng/μL.