Team:TU-Munich/Notebook/Labjournal

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Week 1 22.4-28.4
Week 2 29.4-05.5
Week 3 06.5-12.5
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Labjournal


Week 1

Monday, April 22nd

Transformation of E. coli XL1 blue with Phytochrome B (2-908 N-terminal amino acids) (BBa_K801031, RFC25, pSB1C3)

Investigator: Jeff, Leonie, Rosario

Aim of the experiment: Transformation of Phytochrome B for protein fusion.

Procedure:

  • CaCl2 competent E. coli XL1-Blue cells were put out from the stock in -80 °C freezer and were gently thawed on ice.
  • 2 µl of DNA was added to 100 µl of competent cells and gently mixed.
  • 30 min incubation on ice
  • 5 min. heat shock at 37 °C
  • Adding of 1 ml LB-medium to each tube.
  • Incubation for 45 min at 37 °C in the 180 rpm cell-culture shaker.
  • 100 µl of the cell suspension was plated on one chloramphenicol plate.
  • The rest were centrifuged for 1 min at 13000 rpm and the supernatant was dicarded.
  • The pellet was resuspended in 100 µl of LB-medium and this concentrated cell suspension was plated again on a new chlorampenicol plate.

Miniprep of pTUM100 with pGAL, pTEF1, pTEF2, pADH and RFC25 compatible RFP generator

Investigator: Jeff, Leonie, Rosario

Aim of the experiment: Miniprep of pTUM100 with pGAL, pTEF1, pTEF2, pADH and RFC25 compatible RFP generator

Procedure:

  • Miniprep was performed after manufacturer's protocol (QIAprep Miniprep, QIAGEN)

Sequencing of RFP-Generator (RFC25, pSB1C3)

Investigator: Jeff, Leonie, Rosario

Aim of the experiment: Sequencing of RFP-Generator (RFC25, pSB1C3)

Procedure:

Sequencing batch were prepared after manufacturer's protocol. (15 µl of plasmid DNA (50 - 100 ng) and 2 µl sequencing primer)

Monday, April 23rd

Picking of of E. coli XL1 blue with Phytochrome B (2-908 N-terminal amino acids) (BBa_K801031, RFC25, pSB1C3)

Investigator: Jeff, Leonie, Rosario, Florian

Aim of the experiment: Picking of of E. coli XL1 blue with Phytochrome B (2-908 N-terminal amino acids) (BBa_K801031, RFC25, pSB1C3)

Procedure:

  • pSB1C3 plasmid with BBa_K801031 (PhyB 2 - 908 aa, RFC25): Colonies were picked from chloramphenicol plates.
  • Picked pipette tips was transferred into cell-culture tubes with air-permeable, sterile cover. Each tube contain 4 mL of LB-medium + 4 µL chloramphenicol(1000x).
  • 4 colonies were picked.
  • These tubes were transferred in a cell culture shaker at 37 °C and were incubated overnight

Analytical digestion and gelelectrophoresis of RFP-generator (RFC25, pSB1C3, P4 & P5)

Investigator: Jeff, Leonie, Rosario, Florian

Aim of the experiment: Analytical digestion and gelelectrophoresis of RFP-generator (RFC25, pSB1C3, P4 & P5).


Procedure:

  • Batch for analytical digestion for P4 with NgoMIV+AgeI-HF
volume reagent
2.5 µl Plasmid DNA P4
2 µl NEBuffer 4 (10x)
0.25 µl NgoMIV (10 U/µl)
0.25 µl AgeI-HF (20 U/µl)
15 µl ddH2O
=20 µl TOTAL
  • Batch for analytical digestion for P5 with NgoMIV+AgeI-HF
volume reagent
2.5 µl Plasmid DNA P5
2 µl NEBuffer 4 (10x)
0.25 µl NgoMIV (10 U/µl)
0.25 µl AgeI-HF (20 U/µl)
15 µl ddH2O
=20 µl TOTAL
  • Incubation for 90 min at 37 °C.
  • Analytical gelelectrophoresis was performed at 90 V for 60 min.

Results:

1 kbp ladder DNA ladder P4 P5
Mutation successful Mutation successful!
  • Parts are compliant and do not contain RFC25 forbidden restriction sites.


TUM13 20130423 RFP Generator RFC25 AgeI NgoMIV.png