Team:Evry/Notebook

Here is our lab notebook. Follow all the wet lab experiments we did, day by day.

Yeast surface-display
- May
  - Example entry
  - Week 2
  - Week 3
  - Week 4
Yeast encapsulation
- May
  - Week 1
  - Week 2
  - Week 3
  - Week 4
Hypoxia bio-sensor
- May
  - Week 1
  - Week 2
  - Week 3
  - Week 4
MAIT cells stimulation
- May
  - Week 1
  - Week 2
  - Week 3
  - Week 4
Antigene prediction
- May
  - Week 1
  - Week 2
  - Week 3
  - Week 4

Friday, 12^th June 2015

Extraction of AgA1P from yeast genome with BSAI
AGA1P was extracted with BSAI overhangs for subsequent cloning from W303 and BY4000, according to Looke et al., PMC 2011.

Protocol

1) Resuspend one yeast colony in 100 µl of 200 mM LiAc, 1% SDS solution and incubate at 70°C
2) Add 300 µl of 36% ethanol and vortex
3) Spin down DNA at 15 000 g for 3 minute
4) Wash pellet with 70% ethanol
5) Disolve pellet in 100 µl of water and spin down debris at 15 000 g for 15 seconds

PCR of AGA1P with primers AGA1P R1/F1 with Q5 polymerase using a gradient (57/60/63°C)

Q5 PCR Program

step 1 : 98°C – 30 seconds
step 2 : 98°C – 10 seconds
step 3 : 57, 60 or 63°C
step 4 : 72°C – 1 min (repeat steps 2-4 for 40 cycles)
step 5 : 16°C - Hold

Monday, 14^th June 2015

PCR on yeast genome for site directed mutagenesis :
ADH1 amplification with 2 sets of primers:

1) primers ADH1 sub F1 + ADH1 sub R1 with 3 anealing temperatures : 57°C (B1), 60°C (B2), 63°C (B3)
2) primers ADH1 sub F2 + ADH1 sub R2 with 3 anealing temperatures : 57°C (B4), 60°C (B5), 63°C (B6)

Malpha IFN gamma amplification with 2 sets of primers:

1) primers Mfalpha IFNgamma F1/R1 with 3 anealing temperatures : 57°C (B7), 60°C (B8), 63°C (B9)
2) primers Mfalpha IFNgamma F1 + Mfalpha GMCSF R1 with 3 anealing temperatures :57°C (B10), 60°C (B11), 63°C (B12)

Friday, 19^th June 2015

Golden gates
2 µl T4 ligase buffer 10x
0.5 µl BSAI
0.5 µl T4 ligase
water (qsp 20µl)

Golden gate 1 (A1) inserts:

- New insert1 m1 Cter (AGA2P)
- New insert1 m2 Cter (-OVA1 DEC205)
- Insert1 m2 (GAL10 GAL7 AGA1P)
- Insert1 m3 extracted from yeast genome (AGA1P)
- pYGG1

Golden gate 2 (A2) inserts:

- New insert1 m1 Cter (AGA2P)
- Insert1 m2 (GAL10 GAL7 AGA1P)
- Insert1 m3 extracted from yeast genome (AGA1P)
- pYGG1

Golden gate 3 (A3) inserts :

- insert3 (OVA2)
- pYGG2

Saturday, 20^thJune 2015

PCR colony using primers URA F1 and URA R5 2.0 on A1, A2 and A3
PCR colony products gel electrophoresis (1% agarose)
Results: Clones from golden 3 (A3, see 19/06) present the right size. Clones from golden 1 and 2 (A1 and A2, see 19/06) are negative. It seems there was no amplification. Miniculture (40)

Sunday, 21^thJune 2015

PCR colony (again)

PCR Colony

1 µl of resuspended colony in 20 µl LB
1 µl URA F1
1 µl URA R5 2.0
7 µl water
10 µl PCR mix (Dreamtaq)

Q5 PCR Program

Step1 95°C - 5 min
Step 2 95°C – 30 s
Step 3 50°C – 30s
Step 4 72°C – 2 min (repeat step 2-4, 45 times)
Step 5 72°C – 10 min
Step 6 4°C – Pause

PCR colony products gel electrophoresis (1% agarose)
Results: We got clones with expected sizes.

Monday, 22^ndJune 2015

PCR clean up and nanodrop :
A1 = 209.1 ng/µl (insert1 m3)
A2 = 56.1 ng/µl (AGA2P)
A6 = 114.3 ng/µl (IFN gamma)
A7 = 93.7 ng/µl (GMCSF)
B8 = 114 ng/µl (Malpha IFNgamma)
B10 = 134.2 ng/µl (Malpha GMCSF)
B11 = 163.9 ng/µl (Malpha GMCSF)
C1 = 180.7 ng/µl (ADH1)
C2 = 302.9 ng/µl (ADH1)
G2/G2/G3/G4 Golden gates
2 µl T4 ligase buffer 10x + 0.5 µl BSAI + 0.5 T4 ligase + water (qsp 20µl)

ADH1 Malpha IFNgamma construction (G1): C1 + B8 + A6 + pYGG1
ADH1 Malpha GMCSF construction (G2): C1 + B10 + A7 + pYGG1
ADH2 Malpha IFNgamma (G3): C2 + B8 + A6 + pYGG1
ADH2 … GMCSF construction (G4): C2 + B11 + A7 + pYGG1

E. coli transformation

Add 10 µl plasmids to 50 µl E. coli competent cells on ice and let the mix rest on ice for 15 min
Shock the mix at 42°C for 45 seconds, transfer the mix on ice for 10 min
Add 800 µl of Luria Bertoni (LB) media to the mix and let it recover at 37°C and 750 rpm on shakers for 1 hour
Plate 50 µl and 150 µl to plates containing LB agar media with ampificilin
Put plates in growth incubators at 37°C for 24 hours

Tuesday, 23^rd June 2015

G2/G2/G3/G4 Colony PCR and Miniculture

Wednesday, 24^th June 2015

G2/G2/G3/G4 Library from miniculture :
750 µl of G1 to G8 were mixed with 750 µl of glycerol 50% and put in the freezer at -80°C.

G2/G2/G3/G4 Minipreped using NucleoSpin Plasmid (LOT 1306/003 Macherey-Nagel):
G1

G1 mini = 270.5 ng/µl (260/280 = 1.81 ; 260/230 = 1.72)
G2 mini = 287.4 ng/µl (260/280 = 1.84 ; 260/230 = 1.63)

G2

G3 mini = 146.4 ng/µl (260/280 = 1.81 ; 260/230 = 1.42)
G4 mini = 264.3 ng/µl (260/280 = 1.79 ; 260/230 = 1.80)

G3 (ADH2 Malpha IFNgamma)

G5 mini = 164.9 ng/µl (260/280 = 1.82 ; 260/230 = 1.49)
G6 mini = 128.1 ng/µl (260/280 = 1.84 ; 260/230 = 1.56)

G4

G7 mini = 587.4 ng/µl (260/280 = 1.67 ; 260/230 = 0.63)
G8 mini = 160.2 ng/µl (260/280 = 1.81 ; 260/230 = 1.91)

Thursday, 25^th June 2015

G samples were sent to sequencing using following primers :

URA F1/SR1 lig IFN gamma
S2 lig IFN gamma/SR2 lig IFN gamma
URA F1/SR1 lig IFN gamma

Sequencing mixes :
G4 : 4 µl DNA + 1.25 µl/primer + qsq water
G6 : 6 µl DNA + 1.25 µl/primer + qsq water

Friday, 3^rd July 2015

AGA2P -OVA1 DEC205 (pYYG1) construction : Nanodrop results

New insert1 m1 Cter (AGA2P) = 10 ng/µl
New insert1 m2 Cter PCR1 (-OVA1 DEC205) = 77 ng/µl
pYGG1 (P11) = 107.6 ng/µl

AGA2P OVA1 DEC205 (pYGG1) new golden gate Mix (20µl):
15.5 µl H20

2 µl T4 ligase buffer 10x
0.425 µl New insert1 m1 Cter (AGA2P)
0.194 µl New insert1 m2 Cter PCR1 (-OVA1 DEC205)
1 µl pYGG1
0.5 µl BSA I
0.5 µl T4 ligase

AGA2P OVA1 DEC205 (pYGG1) E. coli transformation

Add 10 µl plasmids to 50 µl E. coli competent cells on ice and let the mix rest on ice for 15 min

Shock the mix at 42°C for 45 seconds, transfer the mix on ice for 10 min

Add 800 µl of Luria Bertoni (LB) media to the mix and let it recover at 37°C and 750 rpm on shakers for 1 hour

Plate 50 µl and 150 µl to plates containing LB agar media with ampificilin

Put plates in growth incubators at 37°C for 24 hours

Sunday, 5^th July 2015

AGA2P OVA1 DEC205 (pYGG1) construction
PCR colony using primers URA F1 and URA R5 2.0

Tuesday, 7^th July 2015

AGA2P OVA1 DEC205 (pYGG1) construction
Miniculture

Wednesday, 8^th July 2015

AGA2P OVA1 DEC205 (pYGG1) construction: PCR colony and gel electrophoresis
1 µl of resuspended colony in 20 µl LB
1 µl URA F1
1 µl URA R5 2.0
7 µl water
10 µl PCR mix (Dreamtaq)

PCR Program
Step1 95°C - 5 min
Step 2 95°C – 30 s
Step 3 50°C – 30 s
Step 4 72°C – 2 min
Step 5 72°C – 10 min
Step 6 4°C – Pause

PCR colony products gel electrophoresis (1% agarose)

Thursday, 9^th July 2015

Miniculture of transformed AGA2P OVA1 DEC205 (pYGG1) E.coli
19 µl colony resuspended Luria Bertoni media in 4 mL of Luria Bertoni media complemented with 4 µl of ampicilin (100 mg/µl) and put to incubate at 37°C overnight.
Samples names : D13/ D23/ D33 / D43

Friday, 10^th July 2015

Samples of AGA2P OVA1 DEC205 (pYGG1) construction were minipreped using NucleoSpin Plasmid (LOT 1306/003 Macherey-Nagel) and nanodroped :

Mini P1 = 449.9 µl (260/230= 1.82 ; 260/280= 1.89) (from D13 and D23, see 09/07)

Mini P2 = 414.2 µl (260/230= 1.83 ; 260/280= 1.94) (from D33 and D43, see 09/07)

Monday, 13^th July 2015

Mat alpha IFN gamma) ADH1 pYGG1 construction: Golden gate
Mix (20µl)
11.35 µl H20
2 µl T4 ligase buffer 10x
0.177 µl ADH1
4.473 µl (Mat alpha IFN gamma) = Gblock
1 µl pYGG1
0.5 µl BSA I
0.5 µl T4 ligase

Program :

Mat alpha IFN gamma ADH1 (pYGG1) E. coli transformation

Add 10 µl plasmids to 50 µl E. coli competent cells on ice and let the mix rest on ice for 15 min

Shock the mix at 42°C for 45 seconds, transfer the mix on ice for 10 min

Add 800 µl of Luria Bertoni (LB) media to the mix and let it recover at 37°C and 750 rpm on shakers for 1 hour

Plate 50 µl and 150 µl to plates containing LB agar media with ampificilin

Put plates in growth incubators at 37°C for 24 hours

Monday, 13^th July 2015

Samples of AGA2P OVA1 DEC205 (pYGG1) construction were minipreped using NucleoSpin Plasmid (LOT 1306/003 Macherey-Nagel) and nanodroped :

AGA2P OVA1 DEC205 1 (SD1) = 449.9 ng/µl

AGA2P OVA1 DEC205 2 (SD2) = 414.2 ng/µl

Samples of AGA2P OVA1 DEC205 (pYGG1) construction, Mini P1 and Mini P2 were sent to sequencing

Wednesday, 15^th July 2015

Mat alpha IFN gamma ADH1 (pYGG1) construction : PCR colony
Mix (20 µl)
10 µl PCR mix (DreamTaq)
1 µl URA F1
1 µl URA R5 2.0
1 µl colony resuspended in Luria Bertoni media
7 µl water

PCR colony program :
Step1 95°C - 5 min
Step 2 95°C – 30 s
Step 3 50°C – 30s
Step 4 72°C – 2 min (Repeat step 2-4 35 times)
Step 5 72°C – 10 min
Step 6 4°C – Pause

Thursday, 16^th July 2015

Mat alpha IFN gamma ADH1 (pYGG1) PCR colony products gel electrophoresis (1% agarose)
Only clones A4, C6 and D7 corresponded to the size expected for (Mat alpha IFN gamma) ADH1 : 2200 pb.

Miniculture
19 µl colony resuspended Luria Bertoni media in 4 mL of Luria Bertoni media complemented with 4 µl of ampicilin (100 mg/µl) and put to incubate at 37°C overnight.

Friday, 17^th July 2015

OVA2 (pYGG2): golden gate
Mix (20 µl)
2 µl T4 ligase
0.5 µl BSA I
0.5 T4 µl DNA ligase
0.801 µl OVA2 (12,6 ng/µl) (Gblock)
0.714 µl pYGG2 (107.6 ng/µl)
15.4 µl water

Program:

Monday, 20^th July 2015

OVA2 (pYGG2) E. coli transformation

Add 10 µl plasmids to 50 µl E. coli competent cells on ice and let the mix rest on ice for 15 min

Shock the mix at 42°C for 45 seconds, transfer the mix on ice for 10 min

Add 800 µl of Luria Bertoni (LB) media to the mix and let it recover at 37°C and 750 rpm on shakers for 1 hour

Plate 50 µl and 150 µl to plates containing LB agar media with ampificilin

Put plates in growth incubators at 37°C for 24 hours

Tuesday, 21^st July 2015

OVA2 (pYGG2) E. coli transformation results
Previously (see 2015-07-21) plates were put overnight into incubators at 37°C.
There is no colonies on the plates, either because the E. coli mix died before being plated or because the golden gate failed in some ways. The latter hypothesis is unliky as we woµld have red negative colonies onto the plate.
=> It turns out we did not use the right plasmid. We shoµld have used pYGG1

Thursday, 23^rd July 2015

OVA2 pYGG1 golden gate
Mix (20 µl)
2 µl T4 ligase
0.5 µl BSA I
0.5 T4 µl DNA ligase
1 µl OVA2 (12,6 ng/µl) (Gblock)
1 µl pYGG1 (107.6 ng/µl)
15 µl water

Program :

OVA2 pYGG1 E.Coli transformation

Add 10 µl plasmids to 50 µl E. coli competent cells on ice and let the mix rest on ice for 15 min

Shock the mix at 42°C for 45 seconds, transfer the mix on ice for 10 min

Add 800 µl of Luria Bertoni (LB) media to the mix and let it recover at 37°C and 750 rpm on shakers for 1 hour

Plate 50 µl and 150 µl to plates containing LB agar media with ampificilin

Put plates in growth incubators at 37°C for 24 hours

AGA2P OVA1 DEC205 minipreped samples were sent to sequencing using two sets of primers :
Seq.ID 26EB08 => SD1.1 (primers : URA F1 / URA F1 reverse seq) (The sequence length is 0 nt)
Seq.ID 26EB09 => SD1.2 (primers : URA R5 2.0 forward seq / URA R5 2.0) (The sequence length is 0 nt)
Seq.ID 26EB10 => SD1.1’ (replicate of SD1.1) (results : The sequence length is 23 nt)
Seq.ID 26EB11 => SD1.2’ (replicate of SD1.2) (results : The sequence length is 41 nt)
Seq.ID 26EB12 => SD2.1 (same as SD1.1) (results : The sequence length is 22 nt)
Seq.ID 26EB13 => SD2.2 (same as SD1.2) (results : The sequence length is 737 nt)
Seq.ID 26EB14 => SD2.1’ (replicate of SD2.1) (results : The sequence length is 0 nt)
Seq.ID 26EB15 => SD2.2’ (Replicate of SD2.2) (Results : The sequence length is 20 nt)

Friday, 23^rd July 2015

Mat alpha IFN gamma ADH1 (pYGG1) : Sample was minipreped using NucleoSpin Plasmid (LOT 1306/003 Macherey-Nagel) from the miniculture (see 15-07-15) and nanodroped :

Mata IFN gamma pYGG1 mini (A4 mini) = 256 ng/µl (260/230= 1.23 ; 260/280= 1.73)

Mata IFN gamma pYGG1 mini (C6 mini) = 66.8 ng/µl (260/230= 1.39 ; 260/280= 1.85)

Mata IFN gamma pYGG1 mini (D7 mini) = 71.4 ng/µl (260/230= 1.67 ; 260/280= 1.88)

Mat alpha IFN gamma ADH1 (pYGG1) sequencing using only one primer set (URA F1/ URA R5 2.0):

Seq.ID 26EB02 => A4 mini .1 (results : The sequence length is 1110 nt)
Seq.ID 26EB03 => A4 mini .2 (replicate) (results : The sequence length is 1076 nt)
Seq.ID 26EB04 => C6 mini .1 (results : The sequence length is 986 nt)
Seq.ID 26EB05 => C6 mini .2 (replicate) (results : The sequence length is 978 nt)
Seq.ID 26EB06 => D7 mini .1 (results : The sequence length is 23 nt)
Seq.ID 26EB07 => D7 mini .2 (replicate) (results : The sequence length is 38 nt)

Friday, 24^th July 2015

OVA2 (pYGG1) E.coli transformation results
The 2 plates put into the incubators showed 4 colonies at most.
We decided to wait for the plates to develop a bit more and to put back the miniculture and colony PCR to Monday 27th 2015. Meanwhile, after a few hours into the incubator, plates were wrapped with parafilm and put into the fridge at 4°C.

Monday, 27^th July 2015

OVA2 (pYGG1): PCR colony and gel electrophoresis
Previously (see 2015-07-23), we transformed E. coli with our golden gate products and plated the transformed E. coli onto 2 plates.
We took 8 positive colonies from the plates and resuspend them separately into 20 µl of Luria Bertoni media.

PCR colony mix
1 µl of resuspended colony in 20 µl LB
1 µl URA F1
1 µl URA R5 2.0
7 µl water
10 µl PCR mix (Dreamtaq)

PCR Program
Step1 95°C - 5 min
Step 2 95°C – 30 s
Step 3 50°C – 30s
Step 4 72°C – 2 min (Repeat step 2-4 35 times)
Step 5 72°C – 10 min
Step 6 4°C – Pause

PCR colony products gel electrophoresis (1% agarose)

PCR from New insert1 m1 Cter (PCR001)

amplification of AGA2P with primers containing DEC205 overhang

Mix (50µl)
2,5 µl FWD AGA2P
2,5 µl RV AGA2P
1 µl New insert1 m1 Cter
19 µl water
25 µl PCR mix (Q5)

PCR program
Step 1 95°C
Step 2 95°C
Step 3 60°C
Step 4 72°C (Repeat step 2-4 31 times)
Step 5 72°C
Step 6 12°C

PCR from New insert1 m2 Cter (PCR002)

amplification of DEC205 with primers containing AGA2P overhang
Mix (50µl)
2,5 µl FWD DEC205
2,5 µl RV DEC205
1 µl New insert1 m2 Cter
19 µl water
25 µl PCR mix (Q5)
PCR program
Step 1 95°C
Step 2 95°C
Step 3 60°C
Step 4 72°C (Repeat step 2-4 31 times)
Step 5 72°C
Step 6 12°C

PCR001 and PCR002 gel electrophoresis :

PCR clean up and nanodrop of AGA2P and DEC205 products :

AGA2P = 72 .3 ng/µl (260/280 = 1.79 ; 260/230 = 0.76)

DEC205 = 104.2 ng/µl (260/280 = 1.79 ; 260/230 = 0.42)

Golden gates of :

pYGG1 + AGA2P + DEC205

PYGG1 + AGA2P + OVA1 (Gblock)

pYGG1 + ADH1 (miniprep « ADH1 ») + Malpha GMCSF (B10, see 22/06/15)

Program :

E. coli transformation with golden gate products

Add 10 µl plasmids to 50 µl E. coli competent cells on ice and let the mix rest on ice for 15 min

Shock the mix at 42°C for 45 seconds, transfer the mix on ice for 10 min

Add 800 µl of Luria Bertoni (LB) media to the mix and let it recover at 37°C and 750 rpm on shakers for 1 hour

Plate 50 µl and 150 µl to plates containing LB agar media with ampificilin

Put plates in growth incubators at 37°C for 24 hours

Tuesday, 28^th July 2015

We sent to sequencing Mat alpha IFN gamma ADH1 (pYGG1) with new primers since previous sequencing results were unconclusive.
Furthermore, in order to check the presence of our desired fragments, we also performed a multiple PCR on A4, C6 and D7 samples.

A4, C6 and D7 samples sequencing :
Seq.ID 26EB16 - A41 (URA F1/SR1 lig IFNg)
Seq.ID 26EB17 - A41.2 (replicate of A41)
Seq.ID 26EB18 - A42 (S2 lig IFNg/SR2 lig IFNg)
Seq.ID 26EB19 - A42.2 (replicate of A42)
Seq.ID 26EB20 - C61 (URA F1/SR1 lig IFNg)
Seq.ID 26EB21 - C61.2
Seq.ID 26EB22 - C62 (S2 lig IFNg/SR2 lig IFNg)
Seq.ID 26EB23 - C62.2
Seq.ID 26EB24 - D71 (URA F1/SR1 lig IFNg)
Seq.ID 26EB25 - D71.2
Seq.ID 26EB26 - D72 (S2 lig IFNg/SR2 lig IFNg)
Seq.ID 26EB27 - D72.2

Multiple PCR using URA F1/SR1 lig IFNg and S2 lig IFNg/SR2 lig IFNg primers :

PCR mix (20 µl)
1 µl of DNA
1 µl forward primer
1 µl reverse primer
7 µl water
10 µl PCR mix (Dreamtaq)

ADH1 (miniprep « ADH1 ») Mat alpha GMCSF (B10, see 22/06/15) (pYGG1) golden gate

E. coli transformation with golden gate products

Add 10 µl plasmids to 50 µl E. coli competent cells on ice and let the mix rest on ice for 15 min

Shock the mix at 42°C for 45 seconds, transfer the mix on ice for 10 min

Add 800 µl of Luria Bertoni (LB) media to the mix and let it recover at 37°C and 750 rpm on shakers for 1 hour

Plate 50 µl and 150 µl to plates containing LB agar media with ampificilin

Put plates in growth incubators at 37°C for 24 hours

Tuesday, 28^th July 2015

We sent to sequencing AGA2P OVA1 DEC205 (pYGG2) with new primers since previous sequencing results were unconclusive.
Furthermore, in order to check the presence of our desired fragments, we also performed a multiple PCR on SD1 and SD2 samples.

SD1 and SD2 samples sequencing:

Sample SD2
Seq.ID 26EB28 (URA F1/URA F1 Rev Seq V2)
Seq.ID 26EB29 (URA R5 2.0 Fw seq V2/URA R5 2.0)
Seq.ID 26EB30 (URA F1/ URA R1)
Seq.ID 26EB31 (URA F2/URA R5 2.0)
Seq.ID 26EB32 (URA F1/URA F1 Rev Seq V2)
Seq.ID 26EB33 (URA R5 2.0 Fw seq V2/URA R5 2.0)
Seq.ID 26EB34 (URA F1/ URA R1)
Seq.ID 26EB35 (URA F2/URA R5 2.0)

Sample SD1
Seq.ID 26EB36 (URA F1/URA F1 Rev Seq V2)
Seq.ID 26EB37 (URA R5 2.0 Fw seq V2/URA R5 2.0)
Seq.ID 26EB38 (URA F1/ URA R1)
Seq.ID 26EB39 (URA F2/URA R5 2.0)
Seq.ID 26EB40 (URA F1/URA F1 Rev Seq V2)
Seq.ID 26EB41 (URA R5 2.0 Fw seq V2/URA R5 2.0)
Seq.ID 26EB42 (URA F1/ URA R1)
Seq.ID 26EB43 (URA F2/URA R5 2.0)

Multiple PCR
PCR mix (20 µl)
1 µl of DNA
1 µl forward primer
1 µl reverse primer
7 µl water
10 µl PCR mix (Dreamtaq)
Golden gates of :

Golden 1 : pYGG1 + AGA2P + DEC205

Golden 2 : PYGG1 + AGA2P + OVA1 (Gblock) (dec 205 v2)

E. coli transformation with golden gate products

Add 10 µl plasmids to 50 µl E. coli competent cells on ice and let the mix rest on ice for 15 min

Shock the mix at 42°C for 45 seconds, transfer the mix on ice for 10 min

Add 800 µl of Luria Bertoni (LB) media to the mix and let it recover at 37°C and 750 rpm on shakers for 1 hour

Plate 50 µl and 150 µl to plates containing LB agar media with ampificilin

Put plates in growth incubators at 37°C for 24 hours

Wednesday, 29^th July 2015

Results of E.coli transformed with AGA2P OVA1 (Gblock "dEC205 - v2") (pYGG1) and AGA2P DEC205 (pYGG1)
We got a few colonies for AGA2P OVA1 but none for AGA2P DEC2065 so we performed a PCR colony for AFGA2P OVA1 and a second transformation for AGA2P DEC205 with remaining golden gate (see 28/07).

AGA2P OVA1: PCR colony
1 µl of resuspended colony in 20 µl LB
1 µl URA F1
1 µl URA R5 2.0
7 µl water
10 µl PCR mix (Dreamtaq)

PCR Program
Step1 95°C - 5 min
Step 2 95°C – 30 s
Step 3 50°C – 30 s
Step 4 72°C – 2 min (repeat step 2-4 30 times)
Step 5 72°C – 10 min
Step 6 4°C – Pause

AGA2P OVA1: PCR colony gel electrophoresis (1% agarose)

Yeast transformation with:

AGA2P OVA1 DEC205 (SD1)
AGA1
AGA2P OVA1 DEC205 (SD2)
Protocol:

From the W303 yeast culture at DO=1, harvest in sterile tube at 5000 rpm for 5 min

Pour off the medium, resuspend the cells in 25 ml of sterile water and centrifuge again

Pour off the water, resuspend the cells in 1 ml of 0.1 M LiAc and transfer the suspension to a 1.5 ml microfuge tube

Pellet the cells at top speed for 15 sec and remove the LiAc with a micropipette

Resuspend the cells with 0.1 LiAc to a final volume of 500 µl

Vortex the cell suspension and pipette 50 µl samples into new 1.5 ml tubes. Pellet the cells and remove the LiAc with a micropipette

Add the following to the samples in order:

240 µl PEG 50%

36 µl 1 M LiAc

25 µl Salmon sperm DNA (2 mg/ml)

50 µl water and plasmid (10 ug)

Vortex each tube vigorously until the cell pellet has been completely mixed. Usually takes about 1 min

Incubate at 30°C for 30 min

Heat shock in a water bath at 42°C for 15 minute

Ice for 2 minutes

Centrifuge at 5000 rpm for 15 sec and remove the transformation mix with a micropipette

Pipette 1 ml of sterile water into each tube and resuspend the pellet by pipetting it up and down gently

Plate 50 µl and 150 µl of the transformation mix onto plates with corresponding media

Incubate at 30°C for 3 days

Wednesday, 29^th July 2015

Results of E.coli transformed with ADH1 (miniprep « ADH1 ») + Malpha GMCSF (B10, see 22/06/15) (pYGG1)
We got no colonies, so we performed a second E.coli transformation with remaining golden gate (see 28/07).

E. coli transformation with golden gate products

Add 10 µl plasmids to 50 µl E. coli competent cells on ice and let the mix rest on ice for 15 min

Shock the mix at 42°C for 45 seconds, transfer the mix on ice for 10 min

Add 800 µl of Luria Bertoni (LB) media to the mix and let it recover at 37°C and 750 rpm on shakers for 1 hour

Plate 50 µl and 150 µl to plates containing LB agar media with ampificilin

Put plates in growth incubators at 37°C for 24 hours

AGA1P sequencing

Friday, 31^st July 2015

Since on the 07/30, we coµld not perform all yeast transformations (transformation 5 or T5), due to lack of samples for AGA1P, we transformed all the constructions into yeast again.
The yeasts that were transformed the day before are already growing except for the plate CoT2 that did not contain enough substrate for the yeast to feed off.

Yeast transformation:

T4: ADH1 Ma IFNg (pYGG1)li

Protocol:

From the W303 yeast culture at DO=1, harvest in sterile tube at 5000 rpm for 5 min

Pour off the medium, resuspend the cells in 25 ml of sterile water and centrifuge again

Pour off the water, resuspend the cells in 1 ml of 0.1 M LiAc and transfer the suspension to a 1.5 ml microfuge tube

Pellet the cells at top speed for 15 sec and remove the LiAc with a micropipette

Resuspend the cells with 0.1 LiAc to a final volume of 500 µl

Vortex the cell suspension and pipette 50 µl samples into new 1.5 ml tubes. Pellet the cells and remove the LiAc with a micropipette

Add the following to the samples in order:

240 µl PEG 50%

36 µl 1 M LiAc

25 µl Salmon sperm DNA (2 mg/ml)

50 µl water and plasmid (10 ug)

Vortex each tube vigorously until the cell pellet has been completely mixed. Usually takes about 1 min

Incubate at 30°C for 30 min

Heat shock in a water bath at 42°C for 15 minute

Ice for 2 minutes

Centrifuge at 5000 rpm for 15 sec and remove the transformation mix with a micropipette

Pipette 1 ml of sterile water into each tube and resuspend the pellet by pipetting it up and down gently

Plate 50 µl and 150 µl of the transformation mix onto plates with corresponding media:

pYGG1 => URA-

pYGG2 => TRP-

pYGG1 + pYGG2 => TRP- URA-

Incubate at 30°C for 3 days

Friday, 31^st July 2015

Since on the 07/30, we coµld not perform all yeast transformations (transformation 5 or T5), due to lack of samples for AGA1P, we transformed all the constructions into yeast again.
The yeasts that were transformed the day before are already growing except for the plate CoT2 that did not contain enough substrate for the yeast to feed off.

AGA1P minipreped using NucleoSpin Plasmid (LOT 1306/003 Macherey-Nagel) and nanodroped :
AGA1P.1 = 44.2 ng/µl

Yeast transformations:

T1: OVA2 (pYGG2)

T2: AGA2P OVA1 (pYGG1) + AGA1P (pYGG2)

T3: AGA2P OVA1 DEC205 (pYGG1) + AGA1P (pYGG2)

T5: AGA2P/GFP (pYGG1) + AGA1P (pYGG2)

T6: AGA2P GFP (pYGG1)

T7: AGA2P OVA DEC205 (pYGG1)

T8: AGA2P OVA1 (pYGG1)

Protocol:

From the W303 yeast culture at DO=1, harvest in sterile tube at 5000 rpm for 5 min

Pour off the medium, resuspend the cells in 25 ml of sterile water and centrifuge again

Pour off the water, resuspend the cells in 1 ml of 0.1 M LiAc and transfer the suspension to a 1.5 ml microfuge tube

Pellet the cells at top speed for 15 sec and remove the LiAc with a micropipette

Resuspend the cells with 0.1 LiAc to a final volume of 500 µl

Vortex the cell suspension and pipette 50 µl samples into new 1.5 ml tubes. Pellet the cells and remove the LiAc with a micropipette

Add the following to the samples in order:

240 µl PEG 50%

36 µl 1 M LiAc

25 µl Salmon sperm DNA (2 mg/ml)

50 µl water and plasmid (10 ug)

Vortex each tube vigorously until the cell pellet has been completely mixed. Usually takes about 1 min

Incubate at 30°C for 30 min

Heat shock in a water bath at 42°C for 15 minute

Ice for 2 minutes

Centrifuge at 5000 rpm for 15 sec and remove the transformation mix with a micropipette

Pipette 1 ml of sterile water into each tube and resuspend the pellet by pipetting it up and down gently

Plate 50 µl and 150 µl of the transformation mix onto plates with corresponding media:

pYGG1 => URA-

pYGG2 => TRP-

pYGG1 + pYGG2 => TRP- URA-

Incubate at 30°C for 3 days

Monday, 3^rd August 2015

Colony PCR of yeast transformants with following primers :

AGA2P/DEC205
P1-4 => URA F1/ URA R1
P5-8 => URA R2/ URA R5 2.0

SD1
R1-4 => URA F1/URA R5 2.0
R5-6 => URA F1/URA R1
R7-8 => URA F2/URA R5 2.0

SD2
T1-4 => URA F1/ URA R5 2.0
T5-6 => URA F1/URA R1
T7-8 => URA F2/URA R5 2.0

Library
"130" P2 (AGA2P/DEC205)
"131" P4 (AGA2P/DEC205)
"132" R4 (SD1)
"133" R5 (SD1)
"134" R6 (SD1)
"135" T1 (SD2)
"136" T3 (SD2)
"137" T4 (SD2)
"138" T5 (SD2)

Monday, 3^rd August 2015

Colony PCR of yeast transformants with following primers :
GMCSF
Q1-8 => URA F1/URA R5 2.0

IFNgamma
S1-4 => URA F1/SR1 lig IFN gamma
S5-8 => S2 lig IFN gamma/SR2 lig IFN gamma

Tuesday, 4^th August 2015

Colony PCR of transformed E. coli with ADH1 Mata GMCSF and ADH1 Mata IFNg
Colony PCR mix :
10 µl dreamtaq master mix
7 µl water
1 µl reverse primer
1 µl forward primer

Colony PCR gel electrophoresis (1% agarose)

Colony PCR yeast gel electrophoresis (1% agarose)

Wednesday, 5^th August 2015

Gel electrophoresis of ADH1 Mata GMCSF and ADH1 Mata IFNg

Colony PCR2 of ADH1 Mata GMCSF and ADH1 Mata IFNg with following primers :
Colony PCR mix (20 µl):
3.5 µl water
0.5 µl primer forward
0.5 µl primer reverse
0.5 µl of e.coli resuspended in 10 µl water

PCR program :
step 1 : 95°C
step 2 : 95°C
step 3 : 72°C
step 4 : 60°C (URA F1/ URA R5 2.0) or 53°C (others)
step 5 : 72°C

Miniculture of ADH1 Mata GMCSF and ADH1 Mata IFNg
The remaining resusepended e.coli was put into 4 mL of Luria Bertoni media containing with 4 µl ampicilin.

Colony PCR of T4 (see 31/07)
Colony PCR mix (20 µl):
10 µl PCR mix (Dreamtaq)
qsq µl water
2.5 µl primer forward
2.5µl primer reverse
yeast resuspended in 10 µl water (separated in two parts table )

PCR program :
step 1 : 95°C – 5 min
step 2 : 95°C – 30 seconds
step 3 : 60°C – 30 seconds
step 4 : 72°C – 4 min (repeat step 2-4 45 times)
step 5 : 4°C – Pause

Golden gate of ADH1 mat alpha GMCSF (pYGG1) construction :
Mix (20 µl) :
0.849 µl ADH1
3.243 µl Mat alpha GMCSF
3.1 µl PYGG1
2 µl T4 ligase buffer
0.5 µl T4 ligase
0.5 µl BSA I
Program :

E. coli transformation with golden gate ADH1 mat alpha GMCSF (pYGG1)

Add 10 µl plasmids to 50 µl E. coli competent cells on ice and let the mix rest on ice for 15 min

Shock the mix at 42°C for 45 seconds, transfer the mix on ice for 10 min

Add 800 µl of Luria Bertoni (LB) media to the mix and let it recover at 37°C and 750 rpm on shakers for 1 hour

Plate 50 µl and 150 µl to plates containing LB agar media with ampificilin

Put plates in growth incubators at 37°C for 24 hours

Wednesday, 5^th August 2015

Colony PCR of T1/2/3/5/6/7/8 (see 31/07)
Colony PCR mix (20 µl):
10 µl PCR mix (Dreamtaq)
qsq µl water
2.5 µl primer forward
2.5µl primer reverse
yeast resuspended in 10 µl water (separated in two parts table )

PCR program :
step 1 : 95°C – 5 min
step 2 : 95°C – 30 seconds
step 3 : 60°C – 30 seconds
step 4 : 72°C – 4 min (repeat step 2-4 45 times)
step 5 : 4°C – Pause

Thursday, 6^th August 2015

Yeast transformation without OVA1 Protocol:

From the W303 yeast culture at DO=1, harvest in sterile tube at 5000 rpm for 5 min

Pour off the medium, resuspend the cells in 25 ml of sterile water and centrifuge again

Pour off the water, resuspend the cells in 1 ml of 0.1 M LiAc and transfer the suspension to a 1.5 ml microfuge tube

Pellet the cells at top speed for 15 sec and remove the LiAc with a micropipette

Resuspend the cells with 0.1 LiAc to a final volume of 500 µl

Vortex the cell suspension and pipette 50 µl samples into new 1.5 ml tubes. Pellet the cells and remove the LiAc with a micropipette

Add the following to the samples in order:

240 µl PEG 50%

36 µl 1 M LiAc

25 µl Salmon sperm DNA (2 mg/ml)

50 µl water and plasmid (10 ug)

Vortex each tube vigorously until the cell pellet has been completely mixed. Usually takes about 1 min

Incubate at 30°C for 30 min

Heat shock in a water bath at 42°C for 15 minute

Ice for 2 minutes

Centrifuge at 5000 rpm for 15 sec and remove the transformation mix with a micropipette

Pipette 1 ml of sterile water into each tube and resuspend the pellet by pipetting it up and down gently

Plate 50 µl and 150 µl of the transformation mix onto plates with corresponding media:

pYGG1 => URA-

pYGG2 => TRP-

pYGG1 + pYGG2 => TRP- URA-

Incubate at 30°C for 3 days

Friday, 7^th August 2015

PCR colony yeast and E. coli

Saturday, 8^th August 2015

GMCSF E.coli PCR colony

IFNg E.coli PCR colony

Monday, 10^th August 2015

Golden gate ADH1 matalpha GMCSF (pYGG1)
Mix (20µl):
Mat alpha GMCSF (gblock)
pYGG1
ADH1

2 µl DNA T4 ligase buffer
0.5 µl DNA ligase
0.5 µl BSA I
qsp water

Program :

Tuesday, 11^th August 2015

E. coli transformation of ADH1 Mat alpha GMCSF (pYGG1) (again)

Add 10 µl plasmids to 50 µl E. coli competent cells on ice and let the mix rest on ice for 15 min

Shock the mix at 42°C for 45 seconds, transfer the mix on ice for 10 min

Add 800 µl of Luria Bertoni (LB) media to the mix and let it recover at 37°C and 750 rpm on shakers for 1 hour

Plate 50 µl and 150 µl to plates containing LB agar media with ampificilin

Put plates in growth incubators at 37°C for 24 hours

Golden gate ADH1 mat alpha IFNgamma (pYGG1)
Mix :
0.033 (x 3) µl Sample « B8 » (M :atalpha IFNgamma) (114 ng/µl)
0.058 (x 3) µl Sample « A6 » (IFNgamma) (114 ng/µl)
0.274 µl Sample « ADH1 » (75 ng/µl)
0.929 µl pYGG1
2 µl DNA T4 ligase buffer
0.5 µl DNA ligase
0.5 µl BSA I

Tuesday, 11^th August 2015

Culture of T1, T2 T3 and WT yeast from plates in glucose (without induction)

Wednesday, 12^th August 2015

Culture induction of T1/T2/T3 and WT yeast

Discard media after centrifugation at 3000 rpm for 4 minutes

Resuspend yeast in 10 mL induction media :

galactose 1X without tryptophane for T1

galactose 1X without tryptophane and uracile for T2 and T3

Put into incubator and agitation at 25 °C for 48 hours

Wednesday, 12^th August 2015

E. coli transformation of ADH1 Mat alpha IFNgamma (pYGG1)

Add 10 µl plasmids to 50 µl E. coli competent cells on ice and let the mix rest on ice for 15 min

Shock the mix at 42°C for 45 seconds, transfer the mix on ice for 10 min

Add 800 µl of Luria Bertoni (LB) media to the mix and let it recover at 37°C and 750 rpm on shakers for 1 hour

Plate 50 µl and 150 µl to plates containing LB agar media with ampificilin

Put plates in growth incubators at 37°C for 24 hours

Colony PCR of pYGG1 ADH1 matalpha GMCSF with following set of primers :
- URA F1 / URA R5 2.0
- URA F1 / SR1 lig IFNgamma
- S2 lig IFNgamma / SR2 lig GMCSF

Thursday, 13^th August 2015

Colony PCR of ADH1 Mat alpha IFN gamma (pYGG1) with folllowing set of primers :
- URA F1 / URA R5 2.0
- URA F1 / SR1 lig IFNgamma
- S2 lig IFNgamma / SR2 lig IFNgamma

Mix (10 µl) :
5 µl dreamtaq master mix
0.5 µl colony resuspended in 19 µl Luria Bertoni
0.5 µl reverse primer
0.5 µl forward primer
3.5 µl water

Miniprep of ADH1 Mat alpha GMCSF (pYGG1) using NucleoSpin Plasmid (LOT 1306/003 Macherey-Nagel) :

AGA2P = 72 .3 ng/µl (260/280 = 1.79 ; 260/230 = 0.76)

GMCSF (1) = 304.2 ng/µl (280/260 = 1.82 ; 260/230 = 1.71)

Monday, 17^th August 2015

Yeast Colony PCR on T1, T2 and T3 (induced/non induced)

Resuspend colony in 10 µl water

Microwave 8 minutes 5 µl of resuspended colony (900W)

Add 10 µl of mix dreamtaq

Add 2.5 µl primer (URA R5 2.0/ URA F1)

PCR Program
Step1 95°C - 5 min
Step 2 95°C – 30 s
Step 3 57/60/63 °C – 30s
Step 4 72°C – 2 min (repeat step 2-4, 41 cycles)
Step 5 72°C – 10 min
Step 6 4°C – Pause

T1/2/3 Colony PCR gel electrophoresis (1% agarose)
Expected sizes :
T1 => OVA2 (290 bp)
T2 => AGA1P (2225 bp) & AGA2P OVA1 (461 bp)
T3 => AGA1P (2285 bp) & AGA2P OVA1 DEC205 (1381 bp)

Miniprep of ADH1 Mat alpha IFN gamma using NucleoSpin Plasmid (LOT 1306/003 Macherey-Nagel) :

IFN 1 = 343.5 ng/µl

IFN 4 = 290 ng/µl

IFN 6 = 265 ng/µl

IFN 7 = 377 ng/µl

Tuesday, 18^th August 2015

We decided to remake the yeast colony PCR from 17/08 using same protocol to check our results a second time.
We tested plates of the same construction, T1, T2 and T3, made by different experimentators. For T1, we tested 3 different plates, each at 2 different temperatures : 53 and 60°C.
We also tested T3 with 3 different sets of primers (see gel picture below). Yeast Colony PCR on T1, T2 and T3 (induced/non induced)

Resuspend colony in 10 µl water

Microwave 8 minutes 5 µl of resuspended colony (900W)

Add 10 µl of mix dreamtaq

Add 2.5 µl primer (URA R5 2.0/ URA F1)

PCR Program
Step1 95°C - 5 min
Step 2 95°C – 30 s
Step 3 57/60/63 °C – 30s
Step 4 72°C – 2 min (repeat step 2-4, 41 cycles)
Step 5 72°C – 10 min
Step 6 4°C – Pause

T1/2/3 Colony PCR gel electrophoresis (1% agarose) primers used :
T1/T2/WT : URA F1/R5 2.0
T3.1 : URA R5 2.0/F1
T3.2 : URA F1/R1
T3.3 : URA F2/ R5.2.0

Wednesday, 19^th August 2015

We started taking care of our biobricks ! We planned to deposite four biobricks : DEC205, OVA2, IFNgamma and Mat alpha IFN gamma. For OVA2 and DEC205, we just amplified the fragments with primers designed to make the fragment fit into the pSB1C3 plasmid. For IFN gamma and Mat alpha IFN gamma, as IFN gamma presented a restriction site, we proceeded to do a site directed mutagenenis to remove it. Mutagenesis of IFNgamma and Mat alpha IFN gamma: We performed two consecutive PCR, the first one (PCR1) to introduce a mutation at the desired site and the second one (PCR2) to amplify the entire fragment (see 21/08). In between, PCR clean-ups were done using Nucleospin Gel and PCR Clean-up (LOT :1504/001).

IFNgamma
PCR1 primers:

P005 FN IFNgamma/RV Mat IFNgamma

FW Mat IFNgamma/P006 RV IFNgamma

Mat alpha IFN gamma PCR
PCR1 primers :

P007 FW Mat alpha GMCSF/ RV Mat IFN gamma

Mix (50 µl) :
25 µl Q5 master mix
2.5 µl reverse primer
2.5 µl forward primer
1 µl DNA
19 µl water

Q5 PCR Program
step 1 : 98°C – 30 seconds
step 2 : 98°C – 10 seconds
step 3 : 57, 60 or 63°C
step 4 : 72°C – 1 min (repeat steps 2-4 for 40 cycles)
step 5 : 16°C - Hold

Thursday, 20^th August 2015

Mutagenesis of IFNgamma and Mat alpha IFN gamma: Gel electrophoresis (2% agarose) for the PCR1 products

Friday, 21^th August 2015

We checked by digestion the following constructions :

ADH1 Mat alpha IFN gamma pYGG1 (sample « IFNgamma)

pYGG1

water

Mix :
2 µl NEB 2.1 Buffer
1 µl Hind III
2 µl DNA
15 µl water

We let the mix, 1 hour at 37°C and 500 rpm

Digestion gel electrophoresis (agarose 1%)

Friday, 21^th August 2015

We checked by digestion the following constructions :

AGA2P OVA1 DEC205 pYGG1 (sample « SD »)

AGA2P OVA1 pYGG1 (sample « DEC -»)

OVA2 pYGG2 (sample « OVA2 »)

pYGG2

water

Mix :
2 µl NEB 2.1 Buffer
1 µl Hind III
2 µl DNA
15 µl water

We let the mix, 1 hour at 37°C and 500 rpm

Digestion gel electrophoresis (agarose 1%)

Monday, 24^th August 2015

PCR of the fragment RFP of pYGG1 for biosensor design using primers 3B FW 2.0 and 3B reverse :

Mix (50 µl) :
25 µl Q5 master mix
2.5 µl reverse primer
2.5 µl forward primer
1 µl DNA
19 µl water

Q5 PCR Program
step 1 : 98°C – 30 seconds
step 2 : 98°C – 10 seconds
step 3 : 57, 60 or 63°C
step 4 : 72°C – 1 min (repeat steps 2-4 for 40 cycles)
step 5 : 16°C - Hold

Mutagenesis of IFNgamma and Mat alpha IFN gamma: PCR2

IFN gamma
PCR2 primers :

P015 FW IFN gamma/P016 RV IFNgamma

Mat alpha IFN gamma
PCR2 primers :

P015 FW IFN gamma / P016 RV IFN gamma

Mix (50 µl) :
25 µl Q5 master mix
2.5 µl reverse primer
2.5 µl forward primer
1 µl DNA
19 µl water

Q5 PCR Program
step 1 : 98°C – 30 seconds
step 2 : 98°C – 10 seconds
step 3 : 57, 60 or 63°C
step 4 : 72°C – 1 min (repeat steps 2-4 for 40 cycles)
step 5 : 16°C - Hold

Wednesday, 26^th August 2015

Miniprep and nanodrop of pYGG1, pYGG2 and AGA1P-pYGG2 using NucleoSpin Plasmid (LOT 1306/003 Macherey-Nagel) :

pYGG1 = 68 ng/µL

pYGG2 = 127 ng/µL

AGA1P (pYGG2) = 32 ng/µL

Wednesday, 26^th August 2015

PCR Clean up of biobrick Mata-IFNg and biobrick IFNg

BB Mata-IFNg = 50 ng/µL

BB IFNg = 35 ng/µL

Gel electrophoresis (1% agarose) of biobricks Mata-IFNg (BB Mata-IFNg) and IFNg (BB IFNg)

Wednesday, 26^th August 2015

PCR Clean up of Biosensor3

Biosensor 3 = 46 ng/µL

Gel electrophoresis (1% agarose) of biosensor 3

Thursday, 27^th August 2015

E.coli transformation of biosensor 2 and 3

Add 10 µl plasmids to 50 µl E. coli competent cells on ice and let the mix rest on ice for 15 min

Shock the mix at 42°C for 45 seconds, transfer the mix on ice for 10 min

Add 800 µl of Luria Bertoni (LB) media to the mix and let it recover at 37°C and 750 rpm on shakers for 1 hour

Plate 50 µl and 150 µl to plates containing LB agar media with ampificilin

Put plates in growth incubators at 37°C for 24 hours

Thursday, 27^th August 2015

PCR of biobrick OVA1

Mix (50 µl) :
25 µl Q5 master mix
2.5 µl reverse primer (P012 RV OVA1)
2.5 µl forward primer (P012 FW OVA1)
1 µl DNA (SD1)
19 µl water

Q5 PCR Program
step 1 : 98°C – 30 seconds
step 2 : 98°C – 10 seconds
step 3 : 57, 60 or 63°C
step 4 : 72°C – 1 min (repeat steps 2-4 for 40 cycles)
step 5 : 16°C - Hold

Gel electrophoresis (2% agarose)

Digestion of the following biobricks using NEB kit:

BB IFNg

BB Mata-IFNg

BB DEC 205

BB OVA1

BB OVA2

pSB1C3

Digestion mix:
2µL NEB Buffer 2.1
0.5µL Eco RI
0.5 µL PstI
500 ng DNA
water qsp 20µL

The mix was left at 1h 37°C under agitation 500rpm and 20 minutes at 80°C.

Friday, 28^th August 2015

PCR clean-up and nanodrop of digested products: ul>
BB IFNg D = 13 ng/µL

BB Mata-IFNg D = 10 ng/µL

BB DEC 205 D = 15.4 ng/µL

BB OVA1 D = 9 ng/µL

BB OVA2 D = 14 ng/µL

pSB1C3 D = 7.4 ng/µL

Ligation of digested products into pSB1C3 with T4 Ligase (ratio 3:1):
2µL T4 DNA Ligase Buffer
50ng pSB1C3
3:1 insert
water qsp 20µL
1µL T4 DNA Ligase

We let the mix at room temperature for 30 minutes and at 65°C for 10 minutes.

E.coli transformation with ligated products:

Add 10 µl plasmids to 50 µl E. coli competent cells on ice and let the mix rest on ice for 15 min

Shock the mix at 42°C for 45 seconds, transfer the mix on ice for 10 min

Add 800 µl of Luria Bertoni (LB) media to the mix and let it recover at 37°C and 750 rpm on shakers for 1 hour

Plate 50 µl and 150 µl to plates containing LB agar media with chloramphenicol

Put plates in growth incubators at 37°C for 24 hours

Friday, 28^th August 2015

Colony PCR of transformed E.coli with biosensor 2 and 3:
PCR colony mix
1 µl of resuspended colony in 20 µl LB
1 µl URA F1
1 µl URA R5 2.0
7 µl water
10 µl PCR mix (Dreamtaq)

PCR Program
Step1 95°C - 5 min
Step 2 95°C – 30 s
Step 3 50°C – 30 s
Step 4 72°C – 2 min (repeat step 2-4 30 times)
Step 5 72°C – 10 min
Step 6 4°C – Pause

Gel electrophoresis (1% agarose)

Miniculture of biosensor 2 and 3

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