Difference between revisions of "Team:Marburg/Labbook/Minicells"

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Electrocompetent cells of TB43 and TB43 HU-mCherry were prepared according to the electrocompetent <i>E.coli</i> cells protocol.
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Electrocompetent cells of TB43 and TB43 HU-mCherry were prepared according to the <a href="https://2015.igem.org/Team:Marburg/Protocols/Protocol7">electrocompetent <i>E.coli</i> cells protocol</a>.
 
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Electrocompetent cells of TB43 and TB43 HU-mCherry were prepared according to the electrocompetent <i>E.coli</i> cells protocol.
+
Electrocompetent cells of TB43 and TB43 HU-mCherry were prepared according to the <a href="https://2015.igem.org/Team:Marburg/Protocols/Protocol7">electrocompetent <i>E.coli</i> cells protocol</a>.
 
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A GFP plasmid with Chloramphenicol resistance gene was transformed into TB43 and TB43 HU-mCherry via electroporation according to transformation into electrocompetent cells protocol.
+
A GFP plasmid with Chloramphenicol resistance gene was transformed into TB43 and TB43 HU-mCherry via electroporation according to the <a href="https://2015.igem.org/Team:Marburg/Protocols/Protocol17">Transformation into electrocompetent cells protocol</a>.
 
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TB43 GFP and TB43 HU-mCherry GFP were treated according to preparation of minicells protocol. Samples were taken and minicells could be detected via flow cytometry but only with very low yields.
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TB43 GFP and TB43 HU-mCherry GFP were treated according to the <a href="https://2015.igem.org/Team:Marburg/Protocols/Protocol15">Preparation of Mini Cells protocol</a>. Samples were taken and minicells could be detected via flow cytometry but only with very low yields.
 
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Chemocompetent cells of TB43, TB43 GFP, TB43 HU-mCherry and TB43 HU-mCherry GFP were prepared according to competent <i>E.coli</i> cells (RbCl) protocol.
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Chemocompetent cells of TB43, TB43 GFP, TB43 HU-mCherry and TB43 HU-mCherry GFP were prepared according to the <a href="https://2015.igem.org/Team:Marburg/Protocols/Protocol3">competent <i>E.coli</i> cells (RbCl) protocol</a>.
 
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Two media were prepared. One according to M9 minimal medium protocol and the other without glucose.
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Two different M9 minimal media were prepared. Both contained 5x M9 salts, 2 mM MgSO<sub>4</sub>, 0.1 mM CaCl<sub>2</sub> and ddH<sub>2</sub>O, one additionally 0.4&#37 glucose. The media were sterile filtered.
 
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Revision as of 20:19, 13 September 2015

15/07/07

Preparation of ONCs

Two times 5 mL LB were inoculated with TB43 and TB43 HU-mCherry and incubated at 37 °C and 200 rpm.

15/07/08

Preparation of Glycerol Stocks

Glycerol stocks of TB43 and TB43 HU-mCherry were prepared according to the glycerol stock generation protocol.

Preparation of electrocompetent Cells

Electrocompetent cells of TB43 and TB43 HU-mCherry were prepared according to the electrocompetent E.coli cells protocol.

Preparation of over-night culture (ONC)

Two times 5 mL LB were inoculated with TB43 and TB43 HU-mCherry and incubated at 37 °C and 200 rpm.

15/07/09

Preparation of electrocompetent Cells

Electrocompetent cells of TB43 and TB43 HU-mCherry were prepared according to the electrocompetent E.coli cells protocol.

15/07/10

Preparation of day culture

20 mL LB were inoculated with TB43 and TB43 HU-mCherry for flow cytometry and grown to an optical density (OD) of 0.5. No minicells could be detected.

15/07/11

Transformation

A GFP plasmid with Chloramphenicol resistance gene was transformed into TB43 and TB43 HU-mCherry via electroporation according to the Transformation into electrocompetent cells protocol.

15/07/13

Preparation of ONC

50 mL LB were inoculated with TB43 GFP and TB43 HU-mCherry GFP and incubated at 37 °C and 200 rpm.

15/07/15

Preparation of Minicells

TB43 GFP and TB43 HU-mCherry GFP were treated according to the Preparation of Mini Cells protocol. Samples were taken and minicells could be detected via flow cytometry but only with very low yields.

15/07/27

Preparation of ONC

5 mL LB were inoculated with TB43, TB43 HU-mCherry, TB43 GFP and TB43 HU-mCherry GFP and incubated at 37 °C and 200 rpm.

15/07/28

Preparation of chemocompetent Cells

Chemocompetent cells of TB43, TB43 GFP, TB43 HU-mCherry and TB43 HU-mCherry GFP were prepared according to the competent E.coli cells (RbCl) protocol.

15/08/21

Preparation of ONC

5 mL LB were inoculated with TB43, TB43 HU-mCherry, TB43 GFP and TB43 HU-mCherry GFP and incubated at 37 °C and 200 rpm.

Preparation of M9 Minimal Medium

Two different M9 minimal media were prepared. Both contained 5x M9 salts, 2 mM MgSO4, 0.1 mM CaCl2 and ddH2O, one additionally 0.4&#37 glucose. The media were sterile filtered.

15/08/24

Plasmid Preparation

Cultures containing a plasmid which encodes enzymes for the biosynthesis of β-carotene (Car) were treated according to the Macherey-Nagel Plasmid DNA Purification Kit protocol.

15/08/25

Transformation

Carotinoid plasmids were transformed into chemocompetent TB43 and TB43 HU-mCherry according to Transformation into chemocompetent (RbCl) Cells protocol.

Plasmid Preparation

Cultures containing a plasmid which encodes enzymes for the biosynthesis of violacein were treated according to the Macherey-Nagel Plasmid DNA Purification Kit protocol.

15/08/29

Preparation of ONC

Four times 5 mL LB was inoculated with TB43 Car and incubated at 37 °C and 200 rpm.

15/08/30

Plasmid Preparation

ONC were treated according to the Macherey-Nagel Plasmid DNA Purification Kit protocol.

15/09/03

Preparation of ONC

5 mL LB were inoculated with TB43, TB43 GFP, TB43 HU-mCherry, TB43 HU-mCherry GFP and TB43 Car and incubated at 37 °C and 200 rpm.

15/09/04

Preparation of ONC

5 mL M9 minimal medium were inoculated with TB43, TB43 GFP, TB43 HU-mCherry, TB43 HU-mCherry GFP and TB43 Car and incubated at 37 °C and 200 rpm.

15/09/05

Growth Curve

TB43, TB43 HU-mCherry, TB43 GFP and TB43 HU-mCherry GFP were cultivated in LB and M9 minimal medium and grown to an OD of 0.5. No minicells could be detected by flow cytometry.

Preparation of ONC

5 mL LB were inoculated from colonies of the first plate (TB43 and TB43 HU-mCherry) and incubated at 37 °C and 200 rpm.

15/09/06

Growth Curve

The procedure from 15/09/05 was repeated with the same result. The calibration of the side scatter sensor of the flow cytometer appeared to be wrong.

15/09/07

Preparation of ONC

5 mL LB were inoculated with the violacein and β-carotene plasmid containing strains and incubated at 37 °C and 200 rpm.

Plasmid Preparation

The cultures containing the constructs AL11 (GFP & Amp-resistance) and AL13 (RFP & Amp-resistance) were treated according to Macherey-Nagel Plasmid DNA Purification Kit protocol.

15/09/08

Plasmid Preparation

Cultures with a deletion of the MinC gene were treated according to Macherey-Nagel Plasmid DNA Purification Kit protocol.

PCR

The backbone pILS was amplified according to Standard PCR protocol. 1 μL template DNA was used.

Gel Extraction

The PCR product was cleaned according to modified gel extraction protocol.

Preparation of ONC

5 mL LB were inoculated with all previous minicell producing strains (both, with and without additional plasmids).

15/09/09

Preparation of electrocompetent Cells

ONC from 15/09/08 were treated according to competent E.coli cells (Electroporation) protocol.

Transformation

All fluorescent protein producing plasmids (both, inducible and constitutive promoters) were transformed into minicell producing strains according to according to transformation into electrocompetent cells protocol.

Preparation of ONC

5 mL LB were inoculated with AL11 and AL13 for induction assays.

15/09/10

PCR

The primers iMC1 and iMC2 were used. The product was cleaned up according to the modified gel extraction protocol.

PCR

The primers iMC3 and iILS5 were used. The product was cleaned up according to the modified gel extraction protocol.

CPEC

A construct for the production of a sRNA was built according to the standard CPEC protocol.

Microscopy

The ONC were examined via fluorescence microscopy. Minicells could clearly be detected.

15/09/11

Plasmid Preparation

Cultures containing the constructs pAB.001 and M13K07 were treated according to Macherey-Nagel Plasmid DNA Purification Kit protocol.

Flow Cytometry

ONC of minicell producing strains were examined via flow cytometry. The calibration of the side scatter sensor was still not right but minicells could be identified by comparison with a negative control.



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