Revision as of 23:06, 7 September 2015

Notebook

MARCH 2015

APRIL 2015

MAY 2015

JUNE 2015

JULY 2015

AUGUST 2015

SEPT. 2015

Gel extraction of the 3 bands of pDawn

Miniprep of liquid culture with the red colonies

We used a kit from QIAgen

Digestion of pDawn and pSB1C3

Mix digestion preparation:
Tube	pDawn	Miniprep
Water	12 µL	12 µL
Buffer 2.1	2 µL	2 µL
Plasmid	5 µL	5 µL
Enzyme EcoRI	0,5 µL	0,5 µL
Enzyme SpeI	0,5 µL	0,5 µL

37°C, 60 min

Expected results

Results

We get 2 bands after the digestion of pDawn meaning a non-expected restriction site appeared into the sequence during the PCR useless to answer biobrick standard requirement.
The profile of the Gibson digestion correspond to pSB1C3 with the RFP (totally unexpected since we have purifies the digested backbone).

PCR pDawn III

Mix PCR preparation:
	pDawn III
MQ water	26,5 µL
Q5 Buffer	10 µL
High GC content Buffer	10 µL
dNTPs 10µM	1 µL
Primer Fwd 50µM	0,5 µL pDawn Fwd VI
Primer Rev 50µM	0,5 µL pDawn Rev III-VI
DNA	1µL pDawn III PCR1
Taq Pol	0.5 µL

PCR cycle – IGEM TAQ
	T°C	Time	Cycle
Initial denaturation	98	5 min	1
Denaturation	98	30 sec	17
Annealing	60	30 sec
Extension	72	2 min
Final extension	72	10 min	1
Hold	4	Infinite

Expected results

Results

There were some amplifications of DNA materials but which one ????

PCR pDawn III

Mix PCR preparation:
	pDawn III
MQ water	40 µL
RB Buffer	5 µL
Mg2+	1,5 µL
dNTPs 10µM	1 µL
Primer Fwd 50µM	0,5 µL pDawn Fwd VI
Primer Rev 50µM	0,5 µL pDawn Rev III-VI
DNA	1µL pDawn III PCR1
Taq Pol	0.5 µL

PCR cycle – IGEM TAQ
	T°C	Time	Cycle
Initial denaturation	98	5 min	1
Denaturation	98	30 sec	17
Annealing	59-60-61	30 sec
Extension	72	2 min
Final extension	72	10 min	1
Hold	4	Infinite

Digestion of pDawn (PCR and Plasmid)

Mix digestion preparation:
Tube	pDawn PCR	pDawn PCR	pDawn PCR	pDawn	pDawn
Water	12 µL	12 µL	12 µL	12 µL	12 µL
Buffer 2.1	2 µL	2 µL	2 µL	2 µL	2 µL
Plasmid	5 µL	5 µL	5 µL	5 µL	5 µL
Enzyme EcoRI	0,5 µL	/	/	0,5 µL	/
Enzyme SpeI	/	0,5 µL	/	/	0,5 µL
Enzyme XbaI	/	/	0,5 µL	/	/

37°C, 60 min

Expected results

Results

Comparison of digestion profile between the original plasmid and the fragment amplificated by PCR. Confirmation of a new restriction site into pDawn PCR

29 July 15

Results of the last transformation

2 red colonies (which is weird)
Liquid culture for amplification

PCR fragments quantification

Expected results

Results

We get expected bands but, as for second PCRs of VVD and YN155 fragments, bands 2 time heavier than expected bands appeared

Test PCR pDawn (whole fragment)

Mix PCR preparation:
	pDawn (x3)	YC 155
MQ water	26,5 µL	26,5 µL
Q5 Buffer	10 µL	10 µL
High GC content Buffer	10 µL	10 µL
dNTPs 10µM	1 µL	1 µL
Primer Fwd 50µM	0,5 µL pDawn Fwd I	0,5 µL YC155 Fwd
Primer Rev 50µM	0,5 µL pDawn Rev III-VI	0,5 µL YC155 Rev
DNA	1µL pDawn	1µL YC155 PCR1
Taq Pol	0.5 µL	0.5 µL

PCR cycle – IGEM TAQ
	T°C	Time	Cycle
Initial denaturation	98	5 min	1
Denaturation	98	30 sec	17
Annealing	59-60-61	30 sec
Extension	72	2 min
Final extension	72	10 min	1
Hold	4	Infinite

Expected results

Results

We get an amplification of pDawn independent of the temperature

Expected results

Results

After the last Gibson reaction we have get red colonies that should correspond to bacteria transformed with pSB1C3-RFP (which should be impossible after the gel migration and purification). So we analyzed the content of the gel extraction and we saw that the tube only had linearized backbone. About pDawn III PCR 2, the migration of 5 µl from the gel extraction of PCR products have shown that there is not a high quantity of DNA material, not enough for a Gibson assembly…

28 July 15

PCR pDawn: whole fragment

Mix PCR preparation:
	pDawn	pDawn
MQ water	35,5 µL	35,5 µL
Q5 Buffer	10 µL	10 µL
High GC content Buffer	/	10 µL
dNTPs 10µM	1 µL	1 µL
Primer Fwd 50µM	1µL pDawn Fwd I	1µL pDawn Fwd I
Primer Rev 50µM	1µL pDawn Rev III-VI	1µL pDawn Rev III-VI
DNA	1µL pDawn	1µL pDawn
Taq Pol	0.5 µL	0.5 µL

PCR cycle – IGEM TAQ
	T°C	Time	Cycle
Initial denaturation	98	5 min	1
Denaturation	98	30 sec	17
Annealing	60	30 sec
Extension	72	2 min
Final extension	72	10 min	1
Hold	4	Infinite

No amplification

Gibson Assembly

Quantification of DNA fragments by Image J:
Fragments	Concentration (ng.µL^-1)	Lenght	Molecular weight (g.mol^-1)	Molarity (mol.L^-1)	1/ratio	Dilution factor	Molarity after dilution	DNA Volume	Volume Water	Volume total
pSB1C3	44.55	2 200	1 430 000	0.000000031155	3.66	1.00	0.000000031155	1.00	0.00	1.00
VVD1	15.71	250	162 500	0.000000096698	1.18	3.10	0.000000031155	1.00	2.10	3.10
VVD2	7.65	250	162 500	0.000000047103	2.42	1.51	0.000000031155	1.00	0.51	1.51
YN155 I	8.42	200	130 000	0.000000064805	1.76	2.08	0.000000031155	1.20	1.30	2.50
YN155 II	14.84	200	130 000	0.000000114117	1.00	3.66	0.000000031155	1.20	3.20	4.40

DNA mix:
YN155 1: 1,2µl + 1,3µl of MQ water
YN155 2: 1,2µl + 3,2µl of MQ water
VVD1 : 1µl + 2,1µl of MQ water
VVD2 : 1µl + 0,5 µl of MQ water
pSB1C3 : no dilution
mix= 2µl of each

5µl used for the Gibson assembly added to 15µl of master mix
Transformation of 100 µl of competent cells using 5 µl of Gibson product

27 July 15

Results of bacterial transformation

A total of 12 colonies in both plates containing transformed bacteria
No colony into the negative control
“Biofilm” into the positive control, bacteria are alive and competent

Gel extraction from the cut band of the 16th of July

We used the kit from QIAgen to extract the DNA from the gel
Final elution into 50 µL

Digestion of Gibson product (VVD-YC155)

Mix for digestion
Tube	Gibson purified
Water	12 µL
Buffer 2.1	2 µL
Plasmid	5 µL
Enzyme EcoRI	0,5 µL
Enzyme PstI	0,5 µL

37°C, 60 min

PCR pDawn: whole fragment

Mix PCR preparation:
	pDawn
MQ water	35,5 µL
Q5 Buffer	10 µL
dNTPs 10µM	1 µL
Primer Fwd 50µM	1µL pDawn Fwd I
Primer Rev 50µM	1µL pDawn Rev III-VI
DNA	1µL pDawn
Taq Pol	0.5 µL

PCR cycle – IGEM TAQ 4
	T°C	Time	Cycle
Initial denaturation	98	30 sec	1
Denaturation	98	30 sec	17
Annealing	60	30 sec
Extension	72	3 min
Final extension	72	6 min	1
Hold	4	Infinite

Electrophoresis of PCR products

Expected results

Results

We get expected bands for our plasmid
No amplification of pDawn

22 July 15

Results of bacterial transformation

A total of 12 colonies in both plates containing transformed bacteria
No colony into the negative control
“Biofilm” into the positive control, bacteria are alive and competent

Gel extraction from the cut band of the 16th of July

We used the kit from QIAgen to extract the DNA from the gel
Final elution into 50 µL

Digestion of Gibson product (VVD-YC155)

Mix for digestion
Tube	Gibson purified
Water	12 µL
Buffer 2.1	2 µL
Plasmid	5 µL
Enzyme EcoRI	0,5 µL
Enzyme PstI	0,5 µL

37°C, 60 min

17 July 15

Results of bacterial transformation

No colonies
We should try again with a plasmid we already transformed
Bacterial survival has to be tested

Digestion of Gibson product (VVD-YC155)

NEB double digestion: Buffer 2.1
EcoRI:100%, PstI:75%

Mix for digestion
Tube	Gibson	Gibson
Water	12 µL	11,5 µL
Buffer 2.1	2 µL	/
Buffer 3.1	/	2 µL
Plasmid	5 µL	5 µL
Enzyme EcoRI	0,5 µL	0,5 µL
Enzyme PstI	0,5 µL	0,5 µL
Enzyme EcoRV	/	0,5 µL

37°C, 100 min

Electrophoresis of digested products

Expected results

Results

We get confirmation of the presence of pSB1C3 and our part, but there is still the unknown band. We have cut the heaviest band of the fourth wells to isolate our plasmid from the other one.

Test of competent cells: transformation with pSB1C3-RFP

Transformation of 100µl of homemade competent cells with 1 µl of pSB1C3 containing a RFP following our protocol and plated onto two agar plates containing chloramphenicol
100 µl of homemade competent cells have been split and plated onto two agar plates, one with chloramphenicol and the other one without antibiotic

16 July 15

Test of competent cells (transformation with pUC19)

Transformation of 50µl of competent cells with 1 µl of pUC19 following our protocol
50µL of competent cells have been used as negative control
Both of them have been plated onto agar plates containing chloramphenicol

Digestion of Gibson product (VVD-YC155)

NEB double digestion: Buffer 2.1
EcoRI:100%, PstI:75%

Mix for digestion
Tube	Gibson
Water	12 µL
Buffer 2.1	2 µL
Plasmid	5 µL
Enzyme EcoRI	0,5 µL
Enzyme PstI	0,5 µL

37°C, 60 min

Electrophoresis of digested products

Expected results

Results

We get expected bands at approximatively 2000 bp and 750 bp, but it still an extra band at 1500 bp (already present during the previous electrophoresis). That could correspond to another plasmid.

15 July 15

PCR pDawn BioBricks

PCR 2 pDawn I,II and III

Aim: second step for pDawn amplification and mutagenesis

Mix PCR preparation:
	pDawn I	pDawn II	pDawn III
MQ water	39,5 µL	39,5 µL	39,5 µL
Mg2+ 50 mM	1,5 µL	1,5 µL	1,5 µL
Buffer RB	5 µL	5 µL	5 µL
dNTPs 10µM	1 µL	1 µL	1 µL
Primer Fwd 50µM	1µL pDawn Fwd I	1µL pDawn Fwd V	1µL pDawn Fwd VI
Primer Rev 50µM	1µL pDawn Rev IV	1µL pDawn Rev V	1µL pDawn Rev VI
DNA	1µL pDawnI PCR1	1µL pDawnII PCR1	1µL pDawnIII PCR1
Taq Pol	0.5 µL	0.5 µL	0.5 µL

PCR cycle – IGEM TAQ 2
	T°C	Time	Cycle
Initial denaturation	95	30 sec	1
Denaturation	95	30 sec	17
Annealing	60	30 sec
Extension	72	2 min
Final extension	72	5 min	1
Hold	4	Infinite

Electrophoresis

Gel : 1,2 g agarose + 120 mL of TAE 1x + 150 µL of BET
Migration of pDawn I, II and III

Expected results

Results

Good amplification of pDawnI and II
The amplification of pDawn 3 is unexpected and cannot be used for the following experiment
About the miniprep of bacteria transformed with the Gibson assembly product: two plasmids have been purified (only one expected); additional checking steps will be lead to characterize these plasmids

Gel purification

QIAquick gel extraction
2 bands of each fragment (pDawnI and II) into 1 column
Concentrate into 30 µl of Elution Buffer

PCR amplification of pDawnIII

Aim: step for pDawn amplification and mutagenesis

Mix PCR preparation:
	pDawn III	pDawn III
MQ water	35,5 µL	25,5 µL
High GC content Buffer	/	10 µL
Buffer Q5	10 µL	10 µL
dNTPs 10µM	1 µL	1 µL
Primer Fwd 50µM	1µL pDawn Fwd III	1µL pDawn Fwd III
Primer Rev 50µM	1µL pDawn Rev III	1µL pDawn Rev III
DNA	1µL pDawnIII PCR1	1µL pDawnIII PCR1
Taq Pol	0.5 µL	0.5 µL

PCR cycle – IGEM TAQ 3
	T°C	Time	Cycle
Initial denaturation	98	30 sec	1
Denaturation	98	30 sec	17
Annealing	60	30 sec
Extension	72	2 min
Final extension	72	5 min	1
Hold	4	Infinite

Electrophoresis

Gel : 1,2 g agarose + 120 mL of TAE 1x + 150 µL of BET
Migration of pDawn III

Expected results

Results

Small amplification of pDawnIII

Gel purification

QIAquick gel extraction
4 bands of pDawnIII into 4 columns (due to high volume of buffer)
Concentrate into 25 µl x4 of Elution Buffer

Production of competent cells (3rd step)

Massive liquid culture into an Erlenmeyer of 500 ml (100 ml of LB medium) using few ml of pre-liquid culture
Application of the protocol for the production of competent cells 95 aliquots of 100µL

10 July 15

Production of competent cells (next steps)

Results of the first step: bacterial amplification

Good bacterial amplification --> miniprep with a MOBio kit (20 ml into 2 columns, final elution with 50 µl for each)
The first PCR to amplify pDawn III has been made by our advisor Samuel Juillot.

Second step

Bacteria have grown on the plate; no bacteria into the control
Pre-liquid culture into an Erlenmeyer without selective condition using an isolated colony from the plate; with a control (Erlenmeyer without bacteria)

9 July 15

PCR pDawn BioBricks

Results of the latest transformation

Aim: first step for pDawn amplification and mutagenesis

After 48h, 2 white shapeless colonies have grown --> Liquid culture (20mL of LB + 20µl of Cam)

Production of competent cells (1st step)

Culture of E.coli DH5 alpha from NEB on a non-selective agar plate with a control (plate without bacteria)

8 July 15

PCR pDawn BioBricks

Results of the latest transformation

Aim: first step for pDawn amplification and mutagenesis

No colonies have grown

Electrophoresis

Gel : 1,2 g agarose + 120 mL of TAE 1x + 150 µL of BET
Migration of the Gibson product

Expected results

Results

Soft bands: it means that some reactions occured

7 July 15

PCR pDawn BioBricks

PCR pDawn III (3)

Aim: first step for pDawn amplification and mutagenesis

Mix PCR preparation:
	pDawn III	pDawn III
MQ water	25,5 µL	24 µL
Mg2+ 50mM	/	1,5 µL
Q5 Buffer	10 µL	10 µL
High GC content Buffer	10 µL	10 µL
dNTPs 10µM	1 µL	1 µL
Primer Fwd 50µM	1µL pDawn Fwd III	1µL pDawn Fwd III
Primer Rev 50µM	1µL pDawn Rev III	1µL pDawn Rev III
DNA	1µL pDawn	1µL pDawn
Taq Pol	0.5 µL	0.5 µL

PCR cycle – IGEM TAQ 2
	T°C	Time	Cycle
Initial denaturation	95	30 sec	1
Denaturation	95	30 sec	17
Annealing	60	30 sec
Extension	72	2 min
Final extension	72	5 min	1
Hold	4	Infinite

Electrophoresis

Gel : 1,2 g agarose + 120 mL of TAE 1x + 150 µL of BET
Migration of pDawn III

Expected results

Results

No amplification

Gibson Assembly

Aim: first step of our VVD Biobrick

Quantification of DNA fragments by Image J:
Fragments	Concentration (ng.µL^-1)	Lenght	Molecular weight (g.mol^-1)	Molarity (mol.L^-1)	1/ratio	Dilution factor	Molarity after dilution	DNA Volume	Volume Water	Volume total
pSB1C3	91.11	2 200	1 430 000	0.000000063712	7.75	1.35	0.000000047103	3.50	1.50	5
VVD1	15.71	250	162 500	0.000000096698	5.10	2.05	0.000000047103	1.00	1.00	2
VVD2	7.65	250	162 500	0.000000047103	10.48	1.00	0.000000047103	1.00	0	1
YC155	128.31	400	260 000	0.000000493488	1.00	10.48	0.000000047103	1.00	9.00	10

DNA mix:

YC155: 1µL + 9µL of MQ water
VVD1: 1µL + 1µL of MQ water
VVD2: no dilution
pSB1C3: 3.5µL + 1.5µL of MQ water

Mix = 2µL of each
5µl used for the Gibson assembly added to 15µl of master mix

E.coli transformation

3 tubes: - 20µL of competent cells + 5µL of Gibson product - Idem - 20µL of competent cells as negative control
Same protocol as used before but only 200µl of LB has been added to resuspend bacteria. Then the final volume of bacteria which has been plated was 50 µl. 37°C, O/N

6 July 15

PCR pDawn BioBricks

PCR pDawn III (2)

Aim: first step for pDawn amplification and mutagenesis

Mix PCR preparation:
	pDawn III
MQ water	25,5 µL
Q5 Buffer	10 µL
High GC content Buffer	10 µL
dNTPs 10µM	1 µL
Primer Fwd 50µM	1µL pDawn Fwd III
Primer Rev 50µM	1µL pDawn Rev III
DNA	1µL pDawn
Taq Pol	0.5 µL

PCR cycle – IGEM TAQ 2
	T°C	Time	Cycle
Initial denaturation	95	30 sec	1
Denaturation	95	30 sec	17
Annealing	60	30 sec
Extension	72	2 min
Final extension	72	5 min	1
Hold	4	Infinite

Electrophoresis

Gel : 1,2 g agarose + 120 mL of TAE 1x + 150 µL of BET
Migration of pDawn III

Expected results

Results

No amplification

3 July 15

PCR pDawn BioBricks

PCR pDawn III

Aim: first step for pDawn amplification and mutagenesis

Mix PCR preparation:
	pDawn III
MQ water	39,5 µL
Mg2+ 50 mM	1,5 µL
Buffer RB	5 µL
dNTPs 10µL	1 µL
Primer Fwd 50µM	1µL pDawn Fwd III
Primer Rev 50µM	1µL pDawn Rev III
DNA	1µL pDawn
Taq Pol	0.5 µL

PCR cycle – IGEM TAQ 2
	T°C	Time	Cycle
Initial denaturation	95	30 sec	1
Denaturation	95	30 sec	17
Annealing	60	30 sec
Extension	72	2 min
Final extension	72	5 min	1
Hold	4	Infinite

Gibson Assembly

Aim: first step of our VVD Biobrick

Quantification of DNA fragments by Image J:
Fragments	Concentration (ng.µL^-1)	Lenght	Molecular weight (g.mol^-1)	Molarity (mol.L^-1)	1/ratio	Dilution factor	Molarity after dilution	DNA Volume	Volume Water	Volume totale
pSB1C3	91.11	2 200	1 430 000	0.000000063712	7.75	1.35	0.000000047103	3.50	1.50	5
VVD1	15.71	250	162 500	0.000000096698	5.10	2.05	0.000000047103	1.00	1.00	2
VVD2	7.65	250	162 500	0.000000047103	10.48	1.00	0.000000047103	1.00	0	1
YC155	128.31	400	260 000	0.000000493488	1.00	10.48	0.000000047103	1.00	9.00	10

DNA mix:

YC155: 1µL + 9µL of MQ water
VVD1: 1µL + 1µL of MQ water
VVD2: no dilution
pSB1C3: 3.5µL + 1.5µL of MQ water

Mix = 2µL of each
5µl used for the Gibson assembly added to 15µl of master mix

Electrophoresis

Gel : 1,2 g agarose + 120 mL of TAE 1x + 150 µL of BET
Migration of pDawn III

Expected results

Results

Soft band at 1500 bp, good but not enough

1 July 15

PCR pDawn BioBricks

PCR YC155, pDawn I, II and III

Aim: first step for pDawn amplification and mutagenesis

Mix PCR preparation:
	YC155	pDawn I	pDawn II	pDawn III
MQ water	39,5 µL	39,5 µL	39,5 µL	39,5 µL
Mg2+ 50 mM	1,5 µL	1,5 µL	1,5 µL	1,5 µL
Buffer RB	5 µL	5 µL	5 µL	5 µL
dNTPs 10µL	1 µL	1 µL	1 µL	1 µL
Primer Fwd 50µM	1µL YC155 Fwd	1µL pDawn Fwd I	1µL pDawn Fwd II	1 µL pDawn Fwd III
Primer Rev 50µM	1µL YC155 Rev	1µL pDawn Rev I	1µL pDawn Rev II	1 µL pDawn Rev III
DNA	1µL PCR YC155	1µL pDawn	1µL pDawn	1 µL pDawn
Taq Pol	0.5 µL	0.5 µL	0.5 µL	0.5 µL

iGEMTAQ program

Electrophoresis

Aim: Migration of PCR product

Gel : 1,2 g agarose + 120 ml of TAE 1x + 150 µl of BET
Migration of PCR products YC155, pDawn I, II and III

Expected results

Results

We get expected bands for YC155, pDawn I and II but there is no amplification for pDawn III
First explanation: human error We should make the reaction again

Gel Purification

Aim: purification of fragment from PCR

QIAquick gel extraction
2 bands of each fragment into 1 column
Concentrate into 50 µl of Elution Buffer

PCR YC155, pDawn I, II and III

Mix PCR preparation:
	pDawn III
MQ water	39,5 µL
Mg2+ 50 mM	1,5 µL
Buffer RB	5 µL
dNTPs 10µL	1 µL
Primer Fwd 50µM	1µL pDawn Fwd III
Primer Rev 50µM	1µL pDawn Rev III
DNA	1µL pDawn
Taq Pol	0.5 µL

iGEMTAQ program

Electrophoresis

Aim: Migration of PCR product

Gel : 1,2 g agarose + 120 ml of TAE 1x + 150 µl of BET
Migration of PCR products purified YC155 and pDawn III

Expected results

Results

No amplification of pDawn III
YC155 quantification = 128 ng.µL^-1

30 June 15

Digestion of pSB1C3

Tube preparation:
Tube	pSB1C3 I	pSB1C3 II	pSB1C3 III
Water	3 µL	3 µL	8 µL
Buffer 2.1	5 µL	5 µL	5 µL
Plasmid pSB1C3	40 µL	40 µL	35 µL
Enzyme EcoRI	1 µL	1 µL	1 µL
Enzyme PstI	1 µL	1 µL	1 µL

NEB double digestion
Buffer 2.1:

EcoRI: 100%
PstI: 75%

37°C, 65min

Electrophoresis

Aim: check for digestion

Migration of the three digested pSB1C3 samples

Expected results

Results

Gel Purification

QIAquick gel extraction
4 bands (1,175 g) into 1 column
Concentrate into 30 µL of Elution Buffer

Electrophoresis

Aim: quantification of DNA

Migration of digested pSB1C3 samples

Expected results

Results

Quantification by Image J: 91 ng.µl^-1

12 June 15

Result from 10.06.15

Culture liquid

pSB1C3 culture liquid

Expected results

pSB1C3: medium became red (RFP) and highly cloudy

BBa_I712074 and BBa_K124003 culture liquid

Expected results

BBa_I712074 and BBa_K124003: cloudy, no contamination in CT-, it still alive bacteria

Miniprep

Protocol from MOBIO Kit

pSB1C3: 20 ml into 4 columns, eluted with 30 µl (pooled together)

Electrophoresis

Gel: 1,2 g of agarose + 120 ml of TAE 1x + 150 µl of BET
Migration of purified pSB1C3

Expected results

Results

Quantification of pSB1C3 by Image J = 35 – 40 ng.µL^-1
4 µg (min) of pSB1C3 are requiring for digestion of the plasmid to make a Gibson reaction

35 ng x 115 µl (remaining) = 4,025 µg all the remaining 115 µL of pSB1C3 should be digested

11 June 15

Miniprep

Protocol from QIAgen, UltraClean® Standard Mini plasmid Prep Kit

BBa_I712074
BBa_K124003

Glycerol stock

Stock of BBa_I712074 and BBa_K124003 (cf protocol for glycerol stock), -80°C

Electrophoresis

Migration of purified BBa_I712074 and BBa_K124003

Expected results

Results

Bands do not correspond exactly to expected weights (supercoiled)

Plate preparation

3 plates: 20 mL of LB agar + 20 µL of Cam

Liquid culture

Double click tube: 3 mL of LB broth + 3 µL of antibiotic

Tube preparation
Tube	Antibiotic
BBa_I712074	Cam
BBa_K124003	Cam
Control Negative	Cam

Survival checking of bacteria after a night spent into a -20°C freezer
Erlenmeyer: culture of bacteria transformed with pSB1C3 coming from glycerol stock; 20 mL of LB broth + 20 µL of Cam

10 June 15

Amplification of iGEM parts

Amplification of bacteria

Amplification of bacteria already transformed with BBa_I712074 (Promoter T7) or BBa_K124003 ( Endolysin/Holin)
On petri dish: 20 mL LB Agar + 20µL Amp & 20µL Kan
LB Broth: 2,5 mL of LB + 2,5µL of Amp & 2,5µL of Kan

9 June 15

Miniprep: QIAgen vs MOBIO

Miniprep test using liquid culture of Terminator T7 and RBS to check the efficiency of miniprep kit from QIAgen and MOBIO

Electrophoresis

Aim: Verification of the purification

Migration of miniprep products

Expected results

Results

Bands have more migrated than expected but it could be due to the folding of circular plasmid. Both kits are efficient.

Plasmid digestion

Tube preparation:
Tube	Terminator T7	RBS
Water	12 µL	12 µL
Buffer 2.1	2 µL	2 µL
Plasmid pSB1C3	5 µL	5 µL
Enzyme EcoRI	0.5 µL	0.5 µL
Enzyme PstI	0.5 µL	0.5 µL

NEB double digestion
Buffer 2.1:

EcoRI: 100%
PstI: 75%

37°C, 1h10
Storage: -20°C

Electrophoresis

Migration of digested T7 and bJun from 29.05.2015 and digested T7 and RBS from 05.06.2015

Expected results

Results

After digestion we get expected band for T7 terminator and RBS from minipreps of the day

Gibson Assembly

Aim: first step of our VVD Biobrick

Master Mix from University of Freiburg (15µL)
Mix of DNA fragment:

1.5 µL pSB1C3
1 µL PCR.2 VVD1 (diluted 1/100)
2 µL PCR.2 VVD2 (diluted 1/100)
1 µL YC155 (diluted 1/10)

5 µL of the DNA mix is adding to the Master mix
Put immediately into a hot bath at 50°C for 1 hour

Transformation

Aim: transformation of E.Coli with Gibson Assembly product

20 µL of competent cells + 5 µL of Gibson product
Protocol for bacteria transformation: using 200 µl of LB broth before incubation for 1 h at 37°C and discarding 150 µl of supernatant before plating

5 June 15

Plasmid digestion (pSB1C3)

Aim: Extraction of the biobrick’s backbone for Gibson Assembly

Into aliquots, added plasmids or nothing (control) as following:
Tube	pSBC3
Buffer 2.1	2 µL
Plasmid pSB1C3	17 µL
Enzyme EcoRI	0.5 µL
Enzyme PstI	0.5 µL

NEB double digestion Buffer 2.1:

EcoRI: 100%
PstI: 75%

37°C, 1h10
Storage: -20°C

Electrophoresis

Aim: electrophoresis for gel purification

Migration of digested pSB1C3, VVD1 PCR2, VVD2 PCR2, YC155, YN155 I PCR2, YN155 II PCR2

Expected results

Results

We get expected bands
Extraction of the heaviest band of digested pSB1C3 and all the others expected bands for VVD 1, VVD 2, YC155, YN155 1, YN155 2.

Gel Purification

QIAquick gel extraction
VVD 1	180 mg	VVD 2	590 mg
YN155 1	180 mg	YN155 2	200 mg
YC155	120 mg	pSB1C3	190 mg

Concentrate into 30 µl of Elution Buffer Concentrate into 30 µl of Elution Buffer

Electrophoresis for quantification

Aim: quantification of ADN to perform Gibson Assembly

Migration of digested pSB1C3, VVD1 PCR2, VVD2 PCR2, YC155, YN155 I PCR2, YN155 II PCR2

Expected results

Results

There is not enough DNA to detect and quantify pSB1C3 and YC155 Try again

Electrophoresis for quantification - 2^nd

Migration of digested pSB1C3, VVD1 PCR2, VVD2 PCR2, YC155, YN155 I PCR2, YN155 II PCR2

Expected results

Results

Quantification of DNA fragments by Image J:
Fragments	Concentration (ng.µL^-1)	Lenght	Molecular weight (g.mol^-1)	Molarity (mol.L^-1)	1/ratio	Dilution factor	Molarity after dilution
pSB1C3	0.92	2 200	1 430 000	0.000000000642	177.7	1	0.000000000642
VVD1	15.71	250	162 500	0.000000096698	1.18	151	0.000000000642
VVD2	7.65	250	162 500	0.000000047103	2.42	73	0.000000000642
YC155	2.50	400	260 000	0.000000009631	11.85	15	0.000000000642
YN155.1	8.42	200	130 000	0.000000064805	1.76	101	0.000000000642
YN155.2	14.84	200	130 000	0.000000114117	1	178	0.000000000642

Liquid culture

Double click tube: 3 mL of LB broth + 3 µL of antibiotic
Plasmid	Antibiotic	Plasmid	Antibiotic
Terminator T7	Cam	bFos	Amp
RBS	Cam	bJun	Amp
Control Negative	Cam	Control Negative	Amp

Concentrate into 30 µl of Elution Buffer Concentrate into 30 µl of Elution Buffer

4 June 15

Results from 29.05.2015

Results of transformation with Gibson assembly product

No bacterial growth

Electrophoresis of digestion product

Aim: check for digestion product from 29.05.2015

Expected results

Results

No bands for miniprep samples or for digestion products
The miniprep has failed

2 June 15

Liquid culture results

Results of the liquid culture from 28/05/2015

After 24h of growth:
Terminator T7 bacteria growth strongly into both tubes
bJun bacteria growth into strongly one tube only, the other one is “cloudy”
bFos both tube are “cloudy”
Control negative clear

Glycerol stock

Stock of Terminator T7 and bJun (cf protocol for glycerol stock), -80°C

Miniprep

Aim: plasmid purification from transformed bacteria

Protocol from QIAgen, UltraClean® Standard
Mini plasmid Prep Kit
Terminator T7: 2 tubes
bJun: 1 tube

Plasmid digestion (Terminator T7 & bJun)

Terminator T7
Tube	Terminator T7	Control negative
Water	12 µL	13 µL
Buffer 2.1	2 µL	2 µL
DNA	5 µL	5 µL
Enzyme EcoRI	0.5 µL	--
Enzyme SpeI	0.5 µL	--

NEB double digestion Buffer 2.1:

EcoRI: 100%
SpeI: 100%

bJun
Tube	bJun	Control negative
Water	12 µL	13 µL
Buffer 2.1	2 µL	2 µL
DNA	5 µL	5 µL
Enzyme EcoRI	0.5 µL	--
Enzyme PstI	0.5 µL	--

NEB double digestion Buffer 2.1:

EcoRI: 100%
PstI: 75%

37°C, 1h10
Storage: -20°C

Gel Purification

Aim: purification of fragment from 28.05.2015

Use of a QIAquick gel extraction kit with the protocol of QIAgen
Gel weight = 270 mg

Gibson Assembly

Aim: first step of our VVD Biobrick

Master Mix from University of Freiburg (15µL)
Mix of DNA fragment:

1 µL pSB1C3
2 µL PCR.2 VVD1
2 µL PCR.2 VVD2
2 µL YC155

5 µL of the DNA mix is adding to the Master mix
Put immediately into a hot bath at 50°C for 1 hour

Transformation

Aim: transformation of E.Coli with Gibson Assembly product

Transformation
Plasmid	Plate
3 µL of plasmid	20 µL on plate
3 µL of plasmid	50 µL on plate
6 µL of plasmid	20 µL on plate
6 µL of plasmid	50 µL on plate
Control negative	100 µL on plate

Incubate at 25°C during 60 hours

29 May 15

Amplification of pSB1A2 (part BBa_J61100) into E.coli DH5 alpha

Plate preparation

Aim: preparation of selective LB agar plate

Add 40 ml of LB agar into a Falcon tube (50ml) + 40µl antibiotic For 20 ml / plate (2 plates)

Agar plates preparation
Plasmid	Antibiotic	Number of plate	Remarks
pSB1A2
	Ampicillin	1	50 µl of transformed cells
	Ampicillin	1	20 µl of transformed cells
Control negative
	Amplicilin	1	50 µl of transformed cells

Antibiotics concentration:

Ampicilin: 50 µg.ml^-1 diluted 1/1000

Cell transformation

E.coli DH5 alpha (NEB5 alpha competent coli)
Stock: 6 tubes 0.20 ml / tube; 50 pg.µl^-1
Aliquot of 50 µl of competent E.coli / transformation
100 µl remaining competent cells have been put at -80°C again (loss of efficiency)

Into aliquots, added plasmids or nothing (control) as following:
Tube n°	Reagent added	Volume (µl)
1	pSB1A2	1
2	Control negative	--

Incubation on ice, 30 min
Heat shock exactly 42°C, 30 seconds. Do not mix
Keep on ice for 5 min, do not mix
400 µl of LB in sterile condition without antibiotic, pipette up and down gently
Incubation 37°C, 120 rpm, 1 hour
Centrifuge, 4000 rpm, 5 min
Remove and discard 300 µl of supernatant; resuspend gently using a pipette the remaining 150 µl
Plate bacteria following the table about plate preparation
Incubate at 37°C, O/N

Expected results:
No colonies into the control plate
Many colonies into the other plate

Plasmid digestion (pSB1C3)

Aim: Extraction of the biobrick’s backbone for Gibson Assembly

Into aliquots, added plasmids or nothing (control) as following:
Tube	pSBC3
Water	16 µL
Buffer 2.1	2 µL
Plasmid pSB1C3	1 µL
Enzyme EcoRI	0.5 µL
Enzyme PstI	0.5 µL

NEB double digestion Buffer 2.1:

EcoRI: 100%
PstI: 75%

37°C, 1h10
Storage: -20°C

Electrophoresis

Aim: check for digestion

1 gel for purification: 110ml TAE 1X + 1,1g agarose + 140µl BET
Sample (purification): 20µl of digestion product+ 2µl of loading dye (6x)
Sample (quantification): 1µl of DNA + 2 µl of loading dye (6x) + 9µl of water MQ
Ladder: 1 µl of 2log ladder (1µg/µl) + 2 µl loading dye (6x) + 9 µl water MQ
110 V, 45 min

Expected results

Results

Liquid culture

Antibiotics concentration:
Tube 1 & 2: 3 mL LB + 3 µL Cam; colonies from “1µL” plate of Terminator T7 transformation
Tube 3 & 4: 3 mL LB + 3 µL Amp; colonies from “50µL” plate of bFos
Tube 5 & 6: 3 mL LB + 3 µL Amp; colonies from “50µL” plate of bJun
Tube 7 & 8: 3 mL LB
37°C, 120 rpm, O/N

28 May 15

Results from cell tranformation

Results of the transformation from 25/05/2015:

After 24h of growth:
No colonies into negative controls Many colonies appears into plates with bFos and bJun transformed bacteria No colonies into plates with pSB1A2 transformed bacteria:

It could be due to the presence of 2 antibiotics (high environmental pressure)

26 May 15

RBS BioBricks

Recover dried DNA sent by iGEM (part BBa_J61100)

Plasmid characteristic:

Part name: BBa_J61100
Plasmid: pSB1A2
Part name: BBa_J61100
Resistance: AK (Amplicilin/Kanamicin)

Punch a hole without removing the foil
Pipette 10µl of water MQ (up and down)
Let sit for 5 minutes to make sure the dried DNA is fully resuspended

Recovered plasmid have been put into a 50µl eppendorf tube called “BBa_J61100, RBS”

Amplification of bFos, bJun, pSB1A2 (part BBa_J61100) into E.coli DH5 alpha

Plate preparation

Aim: preparation of selective LB agar plate

Add 40 ml of LB agar into a Falcon tube (50ml) + 40µl antibiotic For 20 ml / plate (2 plates)

Agar plates preparation
Plasmid	Antibiotic	Number of plate	Remarks
bFos
	Amplicillin	1	50 µl of transformed cells
	Amplicillin	1	100 µl of transformed cells
bJun
	Amplicillin	1	50 µl of transformed cells
	Amplicillin	1	100 µl of transformed cells
pSB1A2
	Ampicillin + Kanamycin	1	50 µl of transformed cells
	Ampicillin + Kanamycin	1	100 µl of transformed cells
Control negative
	Amplicilin	1	50 µl of transformed cells
	Kanamycin	1	50 µl of transformed cells

Antibiotics concentration:

Ampicilin: 50 µg.ml^-1 diluted 1/1000
Kanamycin: 50 µg.ml^-1 diluted 1/1000

Cell transformation

E.coli DH5 alpha (NEB5 alpha competent coli)
Stock: 6 tubes 0.20 ml / tube; 50 pg.µl^-1
Aliquot of 50 µl of competent E.coli / transformation

Into aliquots, added plasmids or nothing (control) as following:
Tube n°	Reagent added	Volume (µl)
1	bFos	1
2	bJun	1
3	pSB1A2	1
4	Control negative	--

Incubation on ice, 30 min
Heat shock exactly 42°C, 30 seconds. Do not mix
Keep on ice for 5 min, do not mix
400 µl of LB in sterile condition without antibiotic, pipette up and down gently
Incubation 37°C, 120 rpm, 1 hour
Centrifuge, 4000 rpm, 5 min
Remove and discard 300 µl of supernatant; resuspend gently using a pipette the remaining 150 µl
Plate bacteria following the table about plate preparation
Incubate at 37°C, O/N

Expected results:
No colonies into the 2 control plates
Many colonies into all the other plates
Colonies from pSB1A2 transformation should exhibit red color

25 May 15

PCR VVD BioBricks

PCR.2 Nter (YN155)

Aim: second step of mutagenesis for YN155

PCR.2 YN155 preparation
Component	PCR.2 YN155 I (x2)	PCR.2 YN155 II (x2)	Control - YN155 I (x2)	Control - YN155 II
Primer Fwd YN155 1	1 µl	--	--	--
Primer Rev YN155 3	1 µl	--	--	--
Primer Fwd YN155 4	--	1 µl	--	--
Primer Rev YN155 2	--	1 µl	--	--
PCR.1, YN155 I	1 µl	--	1 µl	--
PCR.1, YN155 II	--	1 µl	--	1 µl
Taq Pol	0.5 µl	0.5 µl	0.5 µl	0.5 µl

Mix PCR (x8) without primers, DNA and Taq pol
PCR cycle IGEM TAQ program, Tm = 61,3°C

Electrophoresis

Aim: check for digestion

Remaining gel (120ml TAE 1X + 1,2g agarose + 150µl BET) with 8 wells
Sample: 10 µl of PCR product+ 2 µl of loading dye (6x) only 10 µl loaded.
Ladder: 1 µl of 2log ladder (1µg/µl) + 2 µl of loading dye (6x) + 9 µl water MQ only 10 µl loaded.
110 V, 26 min

Expected results

Results

We get expected bands with a good intensity meaning DNA have been highly amplified.

Purification of PRC product

Aim: purify and concentrate amplified DNA

Use of a QIAquick PCR Purification kit and using a microcentrifuge.

For step 1: add 5 volumes of PB buffer for 1 volume of PCR product

200 µl of PB buffer added into both coupled of tube with 40 µl of remaining PCR product
Mix of same PCR product together into a new tube
Put mixes into their own purification column

Then, we followed the protocol from the supplier

At the end of the purification, we get 2 tubes: “PCR2, YN I, 22/05/2015”, “PCR2, YN II, 22/05/2015”
Stored at -20°C.

Liquid culture

Use of 3 colonies (3 tubes) from pSB1C3 (BBA_B0015) 1µl and pSB1C3 (BBA_B0015) 4µl
3ml LB Broth + 3µl Cam in double click tubes (12ml) + 1 control tube (3ml LB Broth)
37°C, 120rpm, O/N

22 May 15

PCR VVD BioBricks

PCR.1 YFP Cter (YC155) & Nter (YN155)

Aim: amplification of YC155 and first step of mutagenesis for YN155

PCR YC155 and YN155 preparation
Component	PCR YC155 (x2)	PCR.1 YN155 I (x2)	PCR.1 YN155 II (x2)	Control - YC155	Control - YN155
Primer Fwd YC155	1 µl	--	--	--	--
Primer Rev YC155	1 µl	--	--	--	--
Primer Fwd YN155 I	--	1 µl	--	--	--
Primer Rev YN155 I	--	1 µl	--	--	--
Primer Fwd YN155 II	--	--	1 µl	--	--
Primer Rev YN155 II	--	--	1 µl	--	--
Plasmid pBiFC-bFos	1 µl	--	--	1 µl	--
Plasmid pBiFC-bJun	1 µl	--	--	1 µl	--
Taq Pol	0.5 µl	0.5 µl	0.5 µl	0.5 µl	0.5 µl

Mix dNTPs: 2 µl of each dNTP
Mix PCR without primers, plasmids and Taq Pol
PCR cycle IGEM TAQ program

Electrophoresis

Aim: check for digestion

1 gel: 120ml TAE 1X + 1,2g agarose + 150µl BET
Sample: 10 µl of PCR product+ 2 µl of loading dye (6x) only 10 µl loaded.
Ladder: 1 µl of 2log ladder (1µg/µl) + 2 µl of loading dye (6x) + 9 µl water MQ only 10 µl loaded.
110 V, 25 min

Expected results

Results

We get expected bands with a good intensity meaning DNA have been highly amplified

Purification of PRC product

Aim: purify and concentrate amplified DNA

Use of a QIAquick PCR Purification kit and using a microcentrifuge.

For step 1: add 5 volumes of PB buffer for 1 volume of PCR product

200 µl of PB buffer added into both coupled of tube with 40 µl of remaining PCR product
Mix of same PCR product together into a new tube
Put mixes into their own purification column

Then, we followed the protocol from the supplier

At the end of the purification, we get 3 tubes: “PCR1, YC155, 21/05/2015”, “PCR1, YN155 I, 21/05/2015”, “PCR1, YN155 II, 21/05/2015”
Stored at -20°C.

Backbone & Terminator

Transformation pSB1C3 – double T7 terminator (BBa_B0015)

Aim: plasmid amplification

3 plates with 25 ml LB medium + 25 µl of Cam antibiotic / plate
Recover dried DNA sent by iGEM

Punch a hole without removing the foil (Plate 3, well F3)
Pipette 10 µl of water MQ (up and down)
Pipette 10 µl of water MQ (up and down)
Protocol for bacteria transformation

Cell transformation

E.coli DH5 alpha (NEB5 alpha competent coli)
Aliquot of 50 µl of competent E.coli / transformation

Into aliquots, added plasmids or nothing (control) as following:
Tube n°	Reagent added	Volume (µl)
1	pSB1C3 – double T7 terminator (BBa_B0015)	1
2	pSB1C3 – double T7 terminator (BBa_B0015)	4
3	Control negative	--

Incubation on ice, 30 min
Heat shock exactly 42°C, 30 seconds. Do not mix
Keep on ice for 5 min. Do not mix
400 µl of LB in sterile condition without antibiotic, pipette up and down gently
Incubation 37°C, 120 rpm, 1 hour
Centrifuge, 4000 rpm, 5 min
Remove and discard 300 µl of supernatant; resuspend gently using a pipette the remaining 100 µl
Plate bacteria and incubate at 37°C, O/N

Results
Control was cloudy as cultures (lack of antibiotics) should be done again
21 May 15

PCR VVD BioBricks

PCR.2 VVD - 2nd part

Aim: second step for VVD amplification and mutagenesis

End of PCR.2 VVD preparation from 07.05.15
Component	PCR.2 VVD 1 (x2)	PCR.2 VVD 2 (x2)	Control negative	Control negative
DNA Mix "PCR.1 VVD1"	1 µl	--	1 µl	--
DNA Mix "PCR.1 VVD2"	--	1 µl	--	1 µl
Taq Pol	0.5 µl	0.5 µl	0.5 µl	0.5 µl

Run of the IGEM TAQ program

Electrophoresis

Aim: check for digestion

1 gel: 120ml TAE 1X + 1,2g agarose + 160µl BET
Sample: 10 µl of PCR product+ 2 µl of loading dye (6x) only 10 µl loaded.
Ladder: 1 µl of 2log ladder (1µg/µl) + 2 µl loading dye (6x) + 9 µl water MQ only 10 µl loaded.
110 V, 30 min

Expected results

Results

We get expected bands about 250 bp meaning DNA have been highly amplified

Purification of PRC product

Aim: purify and concentrate amplified DNA

Use of a QIAquick PCR Purification kit and using a microcentrifuge.

For step 1: add 5 volumes of PB buffer for 1 volume of PCR product

200 µl of PB buffer added into both coupled of tube with 40 µl of remaining PCR product
Mix of same PCR product together into a new tube
Put mixes into their own purification column

Then, we followed the protocol from the supplier

At the end of the purification, we get 1 tube “PCR2, VVD1, 13/05/2015” and another one “PCR2, VVD2, 13/05/2015”
Stored at -20°C.

13 May 15

PCR VVD BioBricks

PCR.1 VVD - 2nd part

Aim: first step for VVD amplification and mutagenesis

PCR.1 VVD preparation
Component	PCR.1 VVD 1 (x2)	PCR.1 VVD 2 (x2)
PCR mix	43,5 µl	43,5 µl
Primer VVD Fwd 1	1 µl	--
Primer VVD Rev 1	1 µl	--
Primer VVD Fwd 2	--	1 µl
Primer VVD Rev 2	--	1 µl
Water	2 µl	2 µl
Plasmid VVD	1 µl	1 µl
Taq Pol	0.5 µl	0.5 µl

Run of the IGEM TAQ program

Electrophoresis

Aim: check for DNA amplification

Low melting point gel
Sample: 10 µl of PCR product+ 2 µl of loading dye (6x)
Ladder: 1 µl of 2log ladder (1µg/µl) + 2 µl of loading dye (6x) + 9 µl water MQ
110 V, 26 min

Expected results

Results

We get expected bands about 200 bp with a good intensity meaning DNA have been highly amplified without contamination.

Purification of PRC product

Aim: purify and concentrate amplified DNA

Use of a QIAquick PCR Purification kit and using a microcentrifuge.

For step 1: add 5 volumes of PB buffer for 1 volume of PCR product

200 µl of PB buffer added into both coupled of tube with 40 µl of remaining PCR product
Mix of same PCR product together into a new tube
Put mixes into their own purification column

Then, we followed the protocol from the supplier

At the end of the purification, we get 1 tube “PCR1, VVD1, 07/05/2015” and another one “PCR1, VVD2, 07/05/2015”
Stored at -20°C.

PCR.2 VVD

Aim: second step for VVD amplification and mutagenesis

dNTP preparation (4µL):
1 µl dATP 100 mM
1 µl dCTP 100 mM
1 µl dTTP 100 mM
1 µl dGTP 100 mM
Store at -20°C

PCR.2 VVD preparation
Component	PCR.2 VVD 1 (x2)	PCR.2 VVD 2 (x2)	Control negative (x2)
Primer VVD Fwd 1	1 µl	--	--
Primer VVD Rev 3	1 µl	--	--
Primer VVD Fwd 4	--	1 µl	--
Primer VVD Rev 2	--	1 µl	--
Water	39.5 µl	39.5 µl	41.5 µl
Buffer RB	5 µl	5 µl	5 µl
dNTPs	0.5 µl	0.5 µl	0.5 µl
Mg²⁺ 50mM	1.5 µl	1.5 µl	1.5 µl

7 May 15

PCR VVD BioBricks

PCR.1 VVD

Aim: first step for VVD amplification and mutagenesis

dNTP preparation (4µL):
1 µl dATP 100 mM
1 µl dCTP 100 mM
1 µl dTTP 100 mM
1 µl dGTP 100 mM
Store at -20°C

PCR cycle – IGEM TAQ
	T°C	Time	Cycle
Initial denaturation	95	30 sec	1
Denaturation	95	30 sec	17
Annealing	60	30 sec
Extension	72	1 min / kb
Final extension	72	5 min	1
Hold	4	Infinite

Mix PCR preparation without primers, plasmid and Taq
MQ water	182,5 µl
Mg2+ 50 mM	7,5 µl
Buffer RB	25 µl
dNTPs	2,5 µl

Mix preparation for 5 tubes: 43,5 µl / tube

6 May 15

Results

Results from the liquid cultures: all the cultures have grown

Miniprep

Aim: plasmid purification from transformed bacteria

Protocol from MO BIO, UltraClean® Standard
Mini plasmid Prep Kit l
4 plates with Ampicillin

Dilution of the glycerol in water
Percentage in mass not in volume
Ex: 50% glycerol solution 50 g Glycerol + 50 g water (mQ)
Then filtration with vacuum pump

Glycerol preparation & Glycerol Stock

Aim: store the transformed bacteria for later use

Weight 50 g of pure Glycerol
Weight 50 g of distilled water
Mix and homogenize the solution
Filtration with vacuum pump, then close the bottle under PSM
Under PSM class II: put 1ml of liquid culture in a 1,5 ml sterile tube (pDusk, pDawn, psB1C3, VVD)
Centrifugate 1mL of liquid culture 4000 rpm, 5 min
Remove and discard the supernatant
Under PSM: resuspend with 0,5 ml of LB without antibiotics
Add 0,5 ml of glycerol 50% (25% final)
Homogenize
Transfer in an identified cryotube and store at -80°C

1 April 15

Results

Results observation for the transformed cells culture (in Petri dishes): no colonies for the positive control pUC19, other plates and negative controls are as expected.

Liquid culture

Antibiotics concentration:
Use of 3 colonies (3 tubes) from VVD, pDawn, pDusk, pSB1C3 3ml LB Broth + 3µl
Antibiotic in double click tubes (12ml) 37°C, 120rpm, O/N

31 March 15

Amplification of pDusk, pDawn, pSB1C3, VVD, pUC19 into E.coli DH5 alpha

Plate preparation

Aim: preparation of selective LB agar plate

Add 50 ml of LB agar into a Falcon tube (50ml) + 50 µl antibiotic
For 25 ml / plate (2 plates)

Agar plates preparation
Plasmid	Antibiotic	Number of plate	Remarks
pDusk
	Kanamycin	1	50 µl of transformed cells
		1	100 µl of transformed cells
		1	50 µl of competent cells (neg control)
pDawn
	Kanamycin	1	50 µl of transformed cells
		1	100 µl of transformed cells
		1	50 µl of competent cells (neg control)
pSB1C3
	Chloramphenicol	1	50 µl of transformed cells
		1	100 µl of transformed cells
		1	50 µl of competent cells (neg control)
VVD
	Amplicilin	1	50 µl of transformed cells
		1	100 µl of transformed cells
		1	50 µl of competent cells (neg control)
pUC19	Amplicilin	1	50 µl of transformed cells

Summary:
6 plates with Kanamycin
3 plates with Chloramphenicol
4 plates with Ampicillin

Antibiotics concentration:
Ampicillin: 50 µg.ml^-1 diluted 1/1000
Chloramphenicol: 25 µg.ml^-1 diluted 1/1000
Kanamycin: 50 µg.ml^-1 diluted 1/1000

Cell transformation

E.coli DH5 alpha (NEB5 alpha competent coli)
Stock: 6 tubes 0.20 ml / tube; 50 pg.µl^-1
Aliquot of 50 µl of competent E.coli / transformation

Into aliquots, added plasmids or nothing (control) as following:
Tube n°	Reagent added	Volume (µl)	Tube n°	Reagent added	Volume (µl)
1	pDusk	1	5	pSB1C3	1
2	pDawn	1	6	(Amp control)	/
3	VVD	1	7	(Kan control)	/
4	pUC19	1	8	(Cam control)	/

Incubation on ice, 30 min
Heat shock exactly 42°C, 30 seconds. Do not mix
Keep on ice for 5 min, do not mix
400 µl of LB in sterile condition without antibiotic, pipette up and down gently
Incubation 37°C, 120 rpm, 1 hour
Centrifuge, 4000 rpm, 5 min
Remove and discard 300 µl of supernatant; resuspend gently using a pipette the remaining 150 µl
Plate bacteria following the table about plate preparation
Incubate at 37°C, O/N

Expected results:
No colonies into the 3 control plates
Many colonies into all the other plates;
Colonies from pSB1C3 transformation should exhibit red color

30 March 15

Preparation of media

Aim: prepare media for bacteria culture

For 250mL
LB Broth	LB Agar
2.5g tryptone	2.5g tryptone
2.5g NaCl	2.5g NaCl
1.25g yeast extract	1.25g yeast extract
	5.0g agar

Qsp 250 ml distilled water
2 bottles of LB broth and 2 bottles of LB agar (+magnetic stirrer)
Auctoclave 121°C

28 March 15

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Difference between revisions of "Team:IONIS Paris/Notebook"

Revision as of 23:06, 7 September 2015

Notebook

Miniprep of liquid culture with the red colonies

Digestion of pDawn and pSB1C3

Expected results

Results

PCR pDawn III

Expected results

Results

PCR pDawn III

Digestion of pDawn (PCR and Plasmid)

Expected results

Results

Results of the last transformation

PCR fragments quantification

Expected results

Results

Test PCR pDawn (whole fragment)

Expected results

Results

Expected results

Results

PCR pDawn: whole fragment

Gibson Assembly

Results of bacterial transformation

Gel extraction from the cut band of the 16th of July

Digestion of Gibson product (VVD-YC155)

PCR pDawn: whole fragment

Electrophoresis of PCR products

Expected results

Results

Results of bacterial transformation

Gel extraction from the cut band of the 16th of July

Digestion of Gibson product (VVD-YC155)

Results of bacterial transformation

Digestion of Gibson product (VVD-YC155)

Electrophoresis of digested products

Expected results

Results

Test of competent cells: transformation with pSB1C3-RFP

Test of competent cells (transformation with pUC19)

Digestion of Gibson product (VVD-YC155)

Electrophoresis of digested products

Expected results

Results

PCR pDawn BioBricks

PCR 2 pDawn I,II and III

Aim: second step for pDawn amplification and mutagenesis

Electrophoresis

Expected results

Results

Gel purification

PCR amplification of pDawnIII

Aim: step for pDawn amplification and mutagenesis

Electrophoresis

Expected results

Results

Gel purification

Production of competent cells (3rd step)

Production of competent cells (next steps)

Results of the first step: bacterial amplification

Second step

PCR pDawn BioBricks

Results of the latest transformation

Aim: first step for pDawn amplification and mutagenesis

Production of competent cells (1st step)

PCR pDawn BioBricks

Results of the latest transformation

Aim: first step for pDawn amplification and mutagenesis

Electrophoresis

Expected results

Results

PCR pDawn BioBricks

PCR pDawn III (3)

Aim: first step for pDawn amplification and mutagenesis

Electrophoresis

Expected results

Results

Gibson Assembly