IGEM:Harvard/2006/NES Notebook

To Order

• DMSO
• Sodium Thiosulfate
• Small, Medium, Large, X-large Nitrile gloves

Introductory Materials

IGEM:Harvard/2006/Lab_Intro

New Reporters

Due to issues with T7 promoter, the following biobricks were rehydrated 6/14

• J04430

Constitutive (IPTG-inducable?) GFP

• J04450

Constitutive (IPTG?) RFP

• I13522

Constitutive GFP using TetR promoter. No experience; might not work.

• I6060

Constitutive (IPTG?) YFP. Apparently gives uneven YFP expression

Transformed with 2ul of DNA on 15ul bacteria; twice for each plasmid. Took 3 ul from each incubation of and added into two two mixed SOC cultures. Let's see what happens when LacI GFP, RFP, YFP are co-cultured.

One of each LacI plasmid type, GFP, RFP, YFP, LacI were cultured overnight on plates treated with 10mM IPTG.

Microscope Notes

Overlap between FITC and YGFP blocks prevents differentiation between YFP and GFP. RFP can be differentiated between YFP/GFP very well.

YFP/GFP fades ~3 hours after being taken out of the incubator after overnight incubation. RFP was still strong at +3h.

IPTG doesn't make an apparent difference in fluoresence.

Promoter Research

7/25/06 Made Glycerol cultures of

• J04430 (lac GFP)
• J04450 (lac RFP)
• I13522 (tet GFP)

We need to transfer these constructs onto pSB4A3

Ligation Assay

• Digestions - Vary enzyme concentration

1. 8ul Midiprep KaiC DNA + .5 ul X+P enzyme + 2.5ul Buffer #3 + 2.5ul BSA + 11ul H2O -> 45C 6H
2. 8ul Midiprep KaiC DNA + 1 ul X+P enzyme + 2.5ul Buffer #3 + 2.5ul BSA + 10ul H2O-> 45C 6H
3. 8ul Midiprep KaiC DNA + 1 ul X+P enzyme + 2.5ul Buffer #3 + 2.5ul BSA + 10ul H2O-> 37C 6H
4. 8ul Midiprep Backbone DNA + .5 ul S+P enzyme + 2.5ul Buffer #2 + 2.5ul BSA + 11ul H2O-> 45C 6H
5. 8ul Midiprep Backbone DNA + 1 ul S+P enzyme + 2.5ul Buffer #2 + 2.5ul BSA + 10ul H2O-> 45C 6H
6. 8ul Midiprep Backbone DNA + 1 ul S+P enzyme + 2.5ul Buffer #2 + 2.5ul BSA + 10ul H2O-> 37C 6H
7. 8ul Midiprep Backbone DNA + 2.5ul Buffer #2 + 2.5ul BSA + 12ul H2O
8. 25ul H20
9. 8ul Midiprep KaiB DNA + .5 ul X+P enzyme to 25ul + 2.5ul Buffer #3 + 2.5ul BSA + 6ul H2O -> 45C 6H
10. 8ul Midiprep KaiB DNA + 1 ul X+P enzyme to 25ul + 2.5ul Buffer #3 + 2.5ul BSA + 5ul H2O-> 45C 6H
11. 8ul Midiprep KaiB DNA + 1 ul X+P enzyme to 25ul + 2.5ul Buffer #3 + 2.5ul BSA + 5ul H2O-> 37C 6H
12. 20ul H20 + 1.75ul Buffer #2 + 1.75ul Buffer #3 + 2.5ul BSA

Due to the ambiguous backbone lanes above, four digetss were redone with new backbone midiprep.

4II. Same as 4 above with new (8.22) backbone midiprep.

5II. Same as 4 above with new (8.22) backbone midiprep.

6II. Same as 4 above with new (8.22) backbone midiprep.

7II. same as 4 above with new (8.22) backbone midiprep

12. 8ul Midiprep Backbone cut once with S.

• Phosphatase

- 25ul Digest + 1ul Phosphatase 1H at 45

• Run on Gel - Create purified and unpurified samples

Add 12 ul of each to the gel.

Chose the most successful digest and run a gel extraction.

• Ligation -

1. KaiC PCR Insert + PCR Backbone: I:B = 1:1
2. KaiC PCR Insert + Gel Backbone: I:B = 3:1
3. KaiC Gel Insert + Gel Backbone: I:B = 12:1
4. KaiC PCR Insert + PCR Backbone: I:B = 1:1
5. KaiC PCR Insert + Gel Backbone: I:B = 3:1
6. KaiC Gel Insert + Gel Backbone: I:B = 12:1
7. KaiC PCR Insert + PCR Backbone: I:B = 1:1
8. KaiC PCR Insert + Gel Backbone: I:B = 3:1
9. KaiC Gel Insert + Gel Backbone: I:B = 12:1
10. KaiB PCR Insert + PCR Backbone: I:B = 1:1
11. KaiB Gel Insert + PCR Backbone: I:B = 3:1
12. KaiB Gel Insert + PCR Backbone: I:B = 3:1

Vary ratio of insert to backbone Two insert samples

- Gel purification of most successful digest

- Unpurified sample of most successful digest

To backbone samples

- Gel purification of most successful digest

- Unpurified sample of most successful digest

For each combination creat samples

- 3ul backbone + 9 ul insert + ligase

- 1.5ul backbone + 15ul insert + Ligase

• Transform