Team:Evry/Interlab Study
From 2014.igem.org
Interlab study
Contructions PSB1C3 with I20260, J23101-E1010 and K823012-E1010
To amplify BBa_I20260 and BBa_0240, a PCR was perform with the mix described Table 1. The program IGEM Q5 PCR was applied, see Table 2. PCR products were cleaned with the GeneJET purification kit (Thermo Scientific)followed by DNA quantification with the NanoDrop 2000 (Thermo Scientific). Purified samples of I20260 and E1010 had respectively following concentration 30.9 ng/µl and 43.3 ng/µl.
Preparation of a 1% agarose gel: 0.52 g of Top Vision agarose (Thermo Scientific) + 50 ml of TAE 1X. Microwave 30s by 30s until agarose total dissolution Gel was cooling down until to be lukewarm, one BET drop was added. Gel was loaded with 20 µl of BBa_E0240 PCR product and BBa_I20260 purified PCR product added with 4 µl of loading dye, at 10µl of the mix per well.
Gel running 45 minutes at 100 mV in TAE 1X buffer.
3 pieces of gel were sampled in four tubes to perform a DNA purification from gel. The DNA purification was made with the GeneJET purification kit (Thermo Scientific).
A verification electrophoresis was performed on a 1% agarose gel.
The major part of the DNA was lost during the purification because the amount of was to weak to be purified from gel. So we decide do transform ''E. coli'' to isolate a colony containing the desired plasmid for BBa_E0240 and BBa_I20260.
Aug 14Contructions PSB1C3 with I20260, J23101-E1010 and K823012-E1010
PCR products were cleaned with the GeneJET purification kit (Thermo Scientific)followed by DNA quantification with the NanoDrop 2000 (Thermo Scientific).
Purified PCR product of BBa_J61002/J23101 and BBa_J61002/K823012 concentration were respectively: 53.9 ng/µl and 54.1 ng/µl.
Preparation of a 1% agarose gel: 0.56 g of Top Vision agarose (Thermo Scientific) + 50 ml of TAE 1X. Microwave 30s by 30s until agarose total dissolution Gel was cooling down until to be lukewarm, one BET drop was added. Gel was loaded with 10µl per sample previously added with 2 µl of loading dye 6X, and 5 µl for ladders. Gel running 45 minutes at 100 mV in TAE 1X buffer.
Profiles were same as before PCR clean up. To sequence the amplified parts, we decided to a purification of fragments from the gel as presented below.
Preparation of a 1% agarose gel: 0.56 g of Top Vision agarose (Thermo Scientific) + 50 ml of TAE 1X. Microwave 30s by 30s until agarose total dissolution. Gel was cooling down until to be lukewarm, one BET drop was added. Gel was loaded with 30 µl of BBa_E0240 purified PCR product and BBa_I20260 purified PCR product added with 6 µl of loading dye, at 10µl of the mix per well. Gel running 45 minutes at 100 mV in TAE 1X buffer.
Four pieces of gel were sampled in four tubes to perform a DNA purification from gel.
Aug 13
Contructions PSB1C3 with I20260, J23101-E1010 and K823012-E1010
The 4 needed parts are: BBa_J23101, BBa_K823012, BBa_E0240 and BBa_I20260. Corresponding wells were located on 2014 Distribution kit plates and resuspended with 10 µL steril water. That permits to obtain a DNA concentration around 0.2 ng/µl (according to the registry. Solutions were transferred into 1 ml eppendorf tubes and stored at -20°C.
To amplify fragments, a PCR was performed on the 4 constructions, with the mix described on table 1.
Distribution of 49 µl of mix per PCR tube. Application of program IGEM Q5 PCR.
Preparation of a 1% agarose gel: 0.56 g of Top Vision agarose (Thermo Scientific) + 50 ml of TAE 1X.Microwave 30s by 30s until agarose total dissolution. Gel was cooling down until to be lukewarm, one BET drop was added. Gel was loaded with 10µl per sample previously added with 2 µl of loading dye 6X, and 5 µl for ladders. Gel running 45 minutes at 100 mV in TAE 1X buffer.
We expected to obtain one band per PCR sample corresponding to the interesting amplified fragment. For Lane 2, 3 and 6 it was ok. We had the expected profile. By contrast 2 bands were visible, one at the expected size (around 1200 bp) and another around 600 bp. We decided to perform a purification on gel of each bands.
Aug 12