Team:Linkoping Sweden/Notes
From 2014.igem.org
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June
June 19th
Supercompetent E-Coli was given to us from one of our professors. We tested the health of the bacteria by letting them grow on a control plate at 37 ºC.
June 24th
Transformation of RFP control (10pg/ul) plasmid into supercompetent cells by heat shock method.
June 25th
Did the transformation of RFP control again since the first transformation went wrong.
June 26th
RFP control plate looked good this time.
June 30th
Heat shock transformation of:
His-TEV-protein plasmid (provided by professor LG Mårtensson)
BBa_K525998 (promotor+RBS)
RFP PSB1C3-J06504
July
July 1st
Re-streak of:
His-TEV-protein plasmid (provided by professor LG Mårtensson), clone 1-2
BBa_K525998 (promotor+RBS), clone 1-4
New transformation of:
RFP PSB1C3-J06504 again since the bacterias did not grow.
July 2nd
Re-streak of:
RFP PSB1C3-J06504
Transformation of:
RFP-control with electrocompetent cells
Over-night of:
PSB1C3 – T7 promotor
His-TEV-protein
Preparation of starter:
10 colonies of transformed His-TEV-protein were used. Induction over-night.
July 3rd
Plasmid preparation of:
PSB1C3-T7 promoter, clone 1-3
His-TEV-protein, clone 1, 2
Over-night on:
PSB1C3-J06504-RFP
Re-streak of:
RFP-control
Preparation of:
Large culture of transformed His-TEV-protein.
Measurement of OD600 and induction with IPTG over-night.
July 4th
Plasmid preparation of:
J06504-RFP, clone 1, 2
Transformation of:
PSB1C3-E1010-RFP
Competency control of:
Electro competent cells
Harvest of large culture by centrifugation followed by lysation of bacterial cells through sonication.
Purification of:
His-TEV-protein (lysate from sonication) by the use of nickel-column.
July 5th
Re-streak of: PSB1C3-E1010-RFP, clones 1-6
July 6th
Over-night of: PSB1C3-E1010-RFP, clones 1-6
July 7th
Plasmid preparation of:
PSB1C3-E1010-RFP overnight-culture, clone 5
July 8th
Analysis of protein content in:
Fractions from nickel-column purification by the use of Bradford assay.
Fractions containing protein was analyzed by the use of SDS-page.
July 9th
Restriction digest performed by spin-kit and the use of Xba1 and Spe1 followed by ligation and transformation (electroporation).
July 10th
Fractions containing His-TEV-protein was set on TEV-cleavage over-night.
July 11th
Reversed nickel-column purification of:
His-TEV-protein after TEV cleavage.
Fractions from the reversed nickel-column purification as well as a fraction both before and after TEV cleavage was controlled by SDS-page.
July 15th
Restriction digest test on all restriction enzymes (except FD PstI) and put on agarose elektrofores gel. (EcoRI, XbaI, SpeI, PstI)
Nanodrop of PSB1C3-E1010 and His-Tev to control the purity and concentration.
July 16th
Analyze of the agarose gel including staining with EtBr, destaining with water and visualization under UV-light.
July 21st
New fransformation of PSB1C3-E1010 and His-Tev scince the concentrations from previous plasmid preps were too low.
July 29th
O/N on His-TEV-protein, clones 1-4.