← Yesterday ↓ Calendar ↑Tomorrow →
Screening of the cloning of E0240 and FlhDC+promotor
Spreading the clones in order to obtain single colonies
Strain
| Resistance
| Ligation
| DNA cloned
| vector
| expected size of the fragment amplified by VF & VR
| mesured size
|
S159.1
| kanamycine
| L139.1
| E0240 (GFP tripart)
| pSB3K3
| 1192 bp
| 1,5 kb 1,1 kb 0,6 kb
|
S161.1
| ampicilline
| L142.7
| FlhDC+promotor
| pSB1A2
| 1403 bp
| 1,4 0,4 kb 0,3 kb
|
The plates obtained from the speading of yesterday can't be used because there are not single colonies.
We have to try again, but with a stronger dilution of the bacteria or with a smaller volume of spreading.
- Resuspension of some bacteria from the glycerol stock into 1 mL of LB+antibiotic
- Dilution 10 and dilution 100
- Spreading of 100 µL of each dilution on a LB plate containing the right antibiotic
- Overnight incubation (37°C)
Miniprep and stock glycerol
Stock Glycerol of New Biobrick
Stock number
| Biobricks
| Description
|
S163.1
| B0032
| RBS
|
S163.2
|
S164.1
| E0422
| RBS+ ECFP+ LVA+ term
|
S164.2
|
S165.1
| E0430
| RBS+ YFP+ LVA- term
|
S165.2
|
S166.1
| E0432
| RBS+ YFP LVA+ term
|
S166.2
|
S167.1
| E0420
| RBS+ ECFP LVA- term
|
S167.2
|
S168.1
| I732078
| RBS+ mRFP LVA+ term
|
S168.2
|
Miniprep of New Biobricks
Miniprep
| Biobricks
| Description
|
MP163.1
| B0032
| RBS
|
MP163.2
|
MP164.1
| E0422
| RBS+ ECFP+ LVA+ term
|
MP164.2
|
MP165.1
| E0430
| RBS+ YFP+ LVA- term
|
MP165.2
|
MP166.1
| E0432
| RBS+ YFP LVA+ term
|
MP166.2
|
MP167.1
| E0420
| RBS+ ECFP LVA- term
|
MP167.2
|
MP168.1
| I732078
| RBS+ mRFP LVA+ term
|
MP168.2
|
Construction of pFlgA - YFP tripart (+/- LVA)
Aim : Construction of "pFlgA-RBS-YFP-dbl ter" (pFlgA-E0430/E0432)
Digestion
Measurement of concentration of minipreps
standard protocol
Miniprep
| Biobrick
| C° (µg/mL)
| ratio 260/280
|
MP164.1
| E0422
| 95
| 1.69
|
MP164.2
| E422
| 90
| 1.76
|
MP165.1
| E0430
| 131
| 1.74
|
MP165.2
| E0430
| nd
| nd
|
MP166.1
| E0432
| 112
| 1.65
|
MP166.2
| E0432
| 79
| 1.6
|
MP167.1
| E0420
| 199
| 1.72
|
MP167.2
| E0420
| 194
| 1.73
|
MP168.1
| I732078
| 111
| 1.65
|
MP168.2
| I732078
| 104
| 1.67
|
MP122.1
| E0840
| 56
| 1.58
|
MP122.2
| E0840
| 98
| 1.63
|
Digestion
Protocol Digestion
Name
| Template DNA
| Description
| Vol MP (µl)
| Vol H2O (µl)
| Enzymes
|
D166
| MP165.1
| RBS+ YFP LVA- term - FV
| 7.63
| 17
| EcoRI and XbaI
|
D167
| MP166.1
| RBS+ YFP LVA+ term - FV
| 8.9
| 15.8
| EcoRI and XbaI
|
D131
| MP122.2
| GFP tripart - I
| 10.2
| 14.5
| XbaI and PstI
|
Protocol
Gel Extraction of D166-D167-D131
Well
| 1
| 2
| 3
| 4
| 5
| 6
| 7
| 8
| 9
| 10
| 11
| 12
|
Sample
| 1kb ladder
| MP165.1
| MP166.1
| MP122.2
| no sample
| D166
| no sample
| D167
| no sample
| D131
| no sample
| 100pb ladder
|
Expected size (pb)
|
| 2 957
| 2 996
| 2 957
|
| 2942
|
| 914
|
| 900
|
Measured size (pb)
|
| 3 000
| 3 000
| 3 000
|
| 2500
|
| 2500
|
| 950
|
|
|
Results of the transformation we did yesterday
Number of colonies
Ligation name
| Description
| Antibio
| Number Colonies observed
| Fluorescence
| Comments
|
Ligations
|
L153
| D123(BV) - D165(BI) J23100 - rbs-LasR-Double terminator
| Amp
| 768
| No
| OK
|
L154
| D103(BV) - D165(FV) J23101 - rbs-LasR - Double terminator
| Amp
| 236
| No
| OK
|
Controls
|
C1
| D123(BV)
| Amp
| 23
| No
| OK
|
C2
| D103(FV)
| Amp
| 144
| No
| OK
|
Positive Control
| pUC19
| Amp
| 2264 (efficiency 4,5.10^8)
| No
| OK
|
PCR Screening
==> Protocol
Well
| Sample
| Expected size
| Measured size
|
1
| 153.1
| 1194
| 1200
|
2
| 153.2
|
3
| 153.3
|
4
| L153.4
|
5
| L153.5
|
6
| L153.6
|
7
| L153.7
|
8
| L153.8
|
9
| 1kb ladder
|
|
|
10
| L154.1
| 1194
| 1200
|
11
| L154.2
|
12
| L154.3
|
13
| L154.4
|
14
| L154.5
|
15
| L154.6
|
16
| L154.7
|
17
| L154.8
|
Minipreps
Miniprep Name
| Ligation name
| Antibio
| Biobricks
| Description
|
MP169.1
| L153.1
| Amp
|
| J23100 - rbs-LasR-Double terminator
|
MP169.2
| L153.2
|
MP170.1
| L154.1
|
| J23101 - rbs-LasR - Double terminator
|
MP170.2
| L154.2
|
Promoter characterization plasmids
Ligation
Our ligations from yesterday didn't work. The positive control for transformation worked.
Digestion
We had a problem with a gel extraction so we have to make again the digestions from yesterday
Other digestions made:
Sequencing
- We received results of our sequencing from COCHIN
- We succeed for FlgA promoter
- FlgB and flhB don't match with our expected sequences. We decided to cut our Miniprep product with other enzymes to check our sequence.
Digestion
Gel 1
Well
| 1
| 2
| 3
| 4
| 5
| 6
| 7
| 8
|
Sample
| 1kb ladder
| D176.1
| D176.2
| D176.3
| D176.4
| D177.1
| D177.2
| 100pb ladder
|
Expected size
|
| 2970 194 48
| 3212
|
Measured size
|
| 2900 200 /
| Plamsid not digested
|
|
Gel 2
Well
| 1
| 2
| 3
| 4
| 5
| 6
| 7
| 8
|
Sample
| nothing
| D177.3
| D177.4
| D178.1
| D178.2
| D178.3
| D178.4
| 1kb ladder
|
Expected size
|
| 3212
| 3213
|
Measured size
|
| Plamsid not digested
|
|
Conclusion => the sequence of pFlgB and pFlhB are not good we will tried to isolate pFlhB again.
|