Team:Freiburg Bioware/NoteBook/Labjournal/October2
From 2010.igem.org
(→159. labday 24.10.2010) |
|||
Line 2: | Line 2: | ||
{{:Team:Freiburg_Bioware/css}} | {{:Team:Freiburg_Bioware/css}} | ||
{{:Team:Freiburg_Bioware/menu_notebook}} | {{:Team:Freiburg_Bioware/menu_notebook}} | ||
+ | {{:Team:Freiburg_Bioware/jquery}} | ||
<!-- Freiburg_bioware --> | <!-- Freiburg_bioware --> | ||
Line 13: | Line 14: | ||
<left><u1>NoteBook Navigator</u1></left> | <left><u1>NoteBook Navigator</u1></left> | ||
<br> | <br> | ||
- | |||
<ul> | <ul> | ||
Line 25: | Line 25: | ||
<li><a href="https://2010.igem.org/Team:Freiburg_Bioware/NoteBook/Labjournal/September">September part 1 (labday 107 - 123)</a></li> | <li><a href="https://2010.igem.org/Team:Freiburg_Bioware/NoteBook/Labjournal/September">September part 1 (labday 107 - 123)</a></li> | ||
<li><a href="https://2010.igem.org/Team:Freiburg_Bioware/NoteBook/Labjournal/September2">September part 2 (labday 124 - 135)</a></li> | <li><a href="https://2010.igem.org/Team:Freiburg_Bioware/NoteBook/Labjournal/September2">September part 2 (labday 124 - 135)</a></li> | ||
- | <li><a href="https://2010.igem.org/Team:Freiburg_Bioware/NoteBook/Labjournal/October">October part 1 (labday 136 - | + | <li><a href="https://2010.igem.org/Team:Freiburg_Bioware/NoteBook/Labjournal/October">October part 1 (labday 136 - 149 )</a></li> |
- | <li><a href="https://2010.igem.org/Team:Freiburg_Bioware/NoteBook/Labjournal/October2">October part 2 (labday | + | <li><a href="https://2010.igem.org/Team:Freiburg_Bioware/NoteBook/Labjournal/October2">October part 2 (labday 150 - 166 )</a></li> |
- | + | ||
<li><a href="https://2010.igem.org/Team:Freiburg_Bioware/NoteBook/Labjournal/November">November (labday 167 - 170 )</a></li> | <li><a href="https://2010.igem.org/Team:Freiburg_Bioware/NoteBook/Labjournal/November">November (labday 167 - 170 )</a></li> | ||
- | <li><a href="https://2010.igem.org/Team:Freiburg_Bioware/NoteBook/Labjournal/Cellculture">Cellculture </a></li> | + | <li><a href="https://2010.igem.org/Team:Freiburg_Bioware/NoteBook/Labjournal/Cellculture">Cellculture</a></li> |
</ul> | </ul> | ||
</div> | </div> |
Latest revision as of 21:33, 27 October 2010
- March (labday 1)
- April (labday 2 - 5)
- May (labday 6 - 17)
- June (labday 18 - 45)
- July (labday 46 - 75)
- August part 1 (labday 76 - 92)
- August part 2 (labday 93 - 106)
- September part 1 (labday 107 - 123)
- September part 2 (labday 124 - 135)
- October part 1 (labday 136 - 149 )
- October part 2 (labday 150 - 166 )
- November (labday 167 - 170 )
- Cellculture
150. labday 15.10.2010
Cloning CFP (from P666: PSB1C3_CFP) into pSB1C3_leftITR_CMV_beta-globin (P729)
Investigator Patrick
Digestions, 2 h 10 minutes, 37 °C:
- P666: 5 µl DNA, 2 µl BSA, 2 µl Buffer 4 (10x), 1 µl Xba, 1 µl PstI, 9 µl H2O
- P729: 4 µl DNA, 2 µl BSA, 2 µl Buffer 4 (10x), 1 µl SpeI, 1 µl PstI, 10 µl H2O
Expected results for the 1% agarose gel:
- P666: about 2100 and 750 bp
- P729: about 3300 and 20 bp
The gelextraction ...
P728: 11,8 ng/µl
P822: 34,6 ng/µl
... and following ligation (2,5 µl Insert, 5,5 µl vector, 1 µl T4 DNA Ligase, 1 µl T4 DNA Ligase Buffer (10x), 40 minutes, RT) were performed according to the standard protocol. After the transformation (with XL1B) the cells were plated and put into the 37°C room.
Two additional transformations were performed with ligations from Volker labeled: "ligation viral brick 453 empty" & "viral brick 587 empty".
The following day the plates were checked for clones. Unfortunately there grew no clones on these two plates contrary to my plate with a a lot of clones.
Midi-Prep
Investigator: Chris W.
Midi-Prep of:
pSB1C3_001_RC_IRCK_P5tataless clone 1 =P866 =B516
pSB1C3_001_CMV_VP123_587-KO_Z34C_spacer clone2 =P867 =B526
pSB1C3_001_CMV_VP123_587-KO_Z34C clone2 =P868 =B529
pSB1C3_CMV_Zegfr:1907_MiddleLinker_VP2/3_587-KO_BAP clone 1 =P869 =B680
pSB1C3_CMV_Zegfr:1907_MiddleLinker_VP2/3_587-KO_6xHis clone 1 =P870 =B200
The Midi-Preps were performed according to the standard protocol yielding the following concentrations:
plasmid-no. | P866 | P867 | P868 | P869 | P870 |
concentration (ng/µl) | 899,80 | 954,46 | 406,97 | 1642,76 | 1585,12 |
mini prep of several constructs
Investigator: Kira
c(rep52_1)=299,04 ng/ul
c(rep52_2)=290,07 ng/ul
c(rep78_1)=142,32 ng/ul
c(rep78_2)=175,36 ng/ul
Cell culture
Investigator: Kira
The cells are still alive. Medium was exchanged.--> RNA will be harvested tomorrow
Mini-Prep and test digestion of pSB1C3_CD_SDM-PstI_hGH_rITR
Investigator: Stefan
Glycerol stocks were prepared:
- B694 = pSB1C3_CD_SDM-PstI_hGH_rITR clone 1
- B695 = pSB1C3_CD_SDM-PstI_hGH_rITR clone 2
Mini-Prep was performed according to standard protocol:
- P875 = pSB1C3_CD_SDM-PstI_hGH_rITR clone 1 c = 73,1 ng/µl
- P876 = pSB1C3_CD_SDM-PstI_hGH_rITR clone 2 c = 78,3 ng/µl
Test digestion:
Components | P875 + P876 / µl |
DNA | 4 |
Buffer 4 | 1 |
BSA (10x) | 1 |
XbaI | 0,3 |
AgeI | 0,3 |
H2O | 3,4 |
Total volume | 10 |
Gel:
0,5g agarose, 50 ml TAE (1%), 3 µl GELRED, 115 Volt, running time ~50 minutes
Comment: Test digestion looks allright, cloning will be continued using P876.
151. labday 16.10.2010
Biobrick assembly: pSB1C3_lITR_CMV_ß-globin_CD_hGH_rITR and pSB1C3_lITR_phTERT_ß-globin_CD_hGH_rITR
Investigator: Achim
Plasmids:
- P729: pSB1C3_lITR_CMV_ß-Globin
- c= 243.4 ng/µl
- P730: pSB1C3_lITR_pHTERT_ß-Globin
- c= 81.1 ng/µl
- P876: pSB1C3_CD_SDM-PstI_hGH_rITR
- c= 78.3 ng/µl
Digestion:
components | I1 (P729) | I2 (P730) | V (P876) |
DNA | 6 | 14 | 14 |
BSA (10x) | 2 | 2 | 2 |
Buffer 4 (10x) | 2 | 2 | 2 |
Enzyme EcoI | 1 | 1 | 1 |
Enzyme XbaI | - | - | 1 |
Enzyme SpeI | 1 | 1 | - |
H2O | 8 | - | - |
Total | 20 | 20 | 20 |
Digestion: 2h, 37°C
Prep. gel:
- 0,8%, run for 45 min
- Corresponding bands were cut out
Gel ex.
- Nanodrop concentrations:
- I1: 37.54 ng/µl
- I2: 25.38 ng/µl
- V: 26.47 ng/µl
Ligation:
ligation name | I1 + V | I2 + V |
volume of vector | 4.69 | 4.23 |
volume of insert | 3.31 | 3.77 |
T4 ligase buffer (10x) | 1 | 1 |
T4 ligase | 1 | 1 |
- Ligation @ RT for 40 min
Trafo:
- Done by Kira
Mini-prep of mutual pSB1C3_lITR_phTERT_betaglobin_mGMK_TK30_hGH_rITR_SDM-PstI
Investigator Patrick
Yielded concentrations & given numbers:
- pSB1C3_lITR_phTERT_betaglobin_mGMK_TK30_hGH_rITR_SDM-PstI clone 1: 208,4 ng/µl , P877 / B696
- pSB1C3_lITR_phTERT_betaglobin_mGMK_TK30_hGH_rITR_SDM-PstI clone 2: 251,6 ng/µl , P878 / B696
- pSB1C3_lITR_phTERT_betaglobin_mGMK_TK30_hGH_rITR_SDM-PstI clone 3: 212,6 ng/µl , P889 / B696
Test-digestion: 0,5 µl SpeI, 0,5 µl PstI, 3 µl DNA, 1 µl Buffer 4, 1 µl BSA, 4 µl H2O, 40 minutes, 37°C
Expected results: fragments with about 650 and 4900 bp
Obviously, this test digestion has to be repeated.
Preparations for tomorrow:
- Mini-prep of 3 mutual pSB1C3_leftITR_CMV_beta-globin_CFP clones (have to be picked from the plate)
- Midi-prep of pHelper
- Midi-prep of B689:pSB1C3_lITR_CMV_betaglobin_mGMK_TK30_SDM-PstI_hGH_rITR clone 2
Biobrick assembly of Rep78 and Rep52
Investigator: Kira
Comment: After replacing the mutated Rep parts by the ordered Rep parts, PCR amplification has to be done in order to produce a biobrick.
PCR program:
c(Rep52)=299 ng/ul
c(Rep78)=175 ng/ul
Rep52: praefix 094 & suffix 097
Rep78: praefix 093 & suffix 097
components | volume in µl |
5x Phusion HF buffer | 10 |
10 mM dNTP mix | 1 |
primer_for (1:10 dilution) | 2,5 |
primer_rev (1:10 dilution) | 2,5 |
DNA template (1:100) | 0,5 |
DMSO | 0,5 |
Phusion polymerase | 0,5 |
H2O | 32,5 |
Total volume (e.g. 50 µl) | 50 |
Cycles | Temperature | Time |
98°C | 30 sec | |
10x | 98°C | 15 sec |
63°C | 25 sec | |
72°C | 32 sec | |
20x | 98°C | 15 sec |
66°C | 25 sec | |
72°C | 32 sec | |
1x | 72°C | 5 min |
Hold 4°C |
Digestion of plasmid backbone:
pSB1C3_001 is used as backbone
Components | <b>vector Volume/µL |
DNA | 3,5 µl |
BSA (10x) | 2 µl |
Buffer no. 4 (10x) | 2,0 µl |
Enzyme 1 EcoRI-HF | 0,5 µl |
Enzyme 2 SpeI | 1,0 µl |
H2O | 15 µl |
Total volume | 25 |
incubation @ 37 C for approx. 2 h
1% agarose gel
Digestion of PCR product:
Components | PCR product Volume/µL |
DNA | 35,0 µl |
BSA (100x) | 0,45 µl |
Buffer no. 4 | 4,5 µl |
Enzyme 1 EcoRI-HF | 1,5 µl |
Enzyme 2 SpeI | 2,0 µl |
H2O | 1,5 µl |
Total volume | 45 |
incubation @ 37 C for approx. 2 h
T4 ligation for 40 min
Transformation according to the standard protocol
RNA harvesting
Investigator: Kira
After transfection, the cells were incubated for 48 hours. Today, the cells will be harvested and RNA extracted, in order to perform RT-PCR and an additional PCR for evaluation of promoter activity.
The transfected cells were trypsinised and centrifuged for 2 min. The supernatant was discarded and pellet washed 2x with PBS. RNeasy Kit [Qiagen] was used for RNA extraction according to the manufacturer protocol.
c(CMV)= 335,69 ng/ul
c(P40)= 857,92 ng/ul
c(AAV_RC)= 760,21 ng/ul
152. labday 17.10.2010
Test digestion of pSB1C3_lITR_CMV_ß-globin_CFP
Investigator: Anna
Vector name:
pSB1C3_lITR_CMV_betaglobin_CFP_cl1 (P880): c = 452,67 ng/µl
pSB1C3_lITR_CMV_betaglobin_CFP_cl2 (P881): c = 288,88 ng/µl
pSB1C3_lITR_CMV_betaglobin_CFP_cl3 (P882): c = 288,36 ng/µl
Test Digestion:
components | volume P880 - P882 /µl | volume P434 /µl |
DNA | 2 | 2 |
BSA (10x) | 1 | 1 |
Buffer 4 (10x) | 1 | 1 |
Enzyme NgoMIV | 0,3 | 0,3 |
Enzyme AgeI | 0,3 | 0,3 |
H2O | 5,4 | 5,4 |
Total volume | 10 | 10 |
Gel:
0,5 g Agarose, 50 ml TAE (1%), 3 µl GELRED , at 115 Volt
Cloning of hGH_rITR into pSB1C3_lITR_CMV_betaglobin_CFP
Investigator: Stefan
Cloning of our last GOI!
Vector name:
pSB1C3_lITR_CMV_betaglobin_CFP cl 1-3 (P880-P882)
Insert name:
pSB1C3_hGH_rITR (P728)
Digestion:
components | volume P880 - P882 /µl | volume P728 /µl |
DNA | 3 | 8 |
BSA (10x) | 2 | 2 |
Buffer 4 (10x) | 2 | 2 |
Enzyme PstI | 1 | 1 |
Enzyme XbaI | - | 1 |
Enzyme SpeI | 1 | - |
H2O | 11 | 4 |
Total volume (e.g. 15,20,25,30 µl) | 20 | 20 |
Gel:
0,5 g Agarose, 50 ml TAE (1%), 3 µl GELRED , at 115 Volt
Test digestion of all constructs looked alright, therefore, cloning was continued using P881 only.
Gel extraction:
Was performed according to protocol.
T4 Ligation:
ligation name | 728 + 881 |
volume of vector | 2,68 |
volume of insert | 5,32 |
T4 ligase buffer (10x) | 1 |
T4 ligase | 1 |
Transformation:
Transformation was performed according to standard protocol using BL21 cells.
RT-PCR
Investigator: Kira
For further experiments, RNA has to be translated into cDNA. The PCR was performed according to the manufacturer protocol.
153. labday 18.10.2010
quantitative real-time PCR for detection of virus titer
Investigator: Achim
- qPCR of harvested virus particles to determine the virus titers of our different constructs
- Total number of samples: 58
Test-digestion of pSB1C3_lITR_phTERT_betaglobin_mGMK_TK30_hGH_rITR_SDM-PstI clone 1, 2 and 3 (P877, 878 and 879)
Investigator Patrick
Check the plasmid for leftITR:
0,5 µl EcoRI, 1 µl BstEII, 7 µl DNA, 2 µl Buffer 4, 2 µl BSA, 7,5 µl H2O, 45 minutes 37°C, 45 minutes 60°C
Check the plasmid for hGH_rITR and ... :
0,5 µl AgeI, 0,5 µl PstI, 3 µl DNA, 1 µl BSA, 1 µl Buffer 4, 4 µl H2O, 70 minutes 37°C
Expected results:
- leftITR: about 190 bp
- hGH_rITR: about 670 bp
Unfortunately the digestions had to be reapeated because i didnt switch on the current so the samples and especially the 1kb GeneRuler marker diffused.
The second run: see above
PstI or BstEII seems to work not properly
MTT Assay
Investigator Kerstin, Anissa
Results:
Mini-Prep and test digestion of several constructs
Investigator: Jessica
Glycerol stocks were prepared:
- B702 = pSB1C3_lITR_pTERT_ßglobin_CD_hGH_rITR clone 1
- B703 = pSB1C3_lITR_pTERT_ßglobin_CD_hGH_rITR clone 2
- B704 = pSB1C3_001_VP3 clone 1
- B705 = pSB1C3_001_VP3 clone 2
- B706 = pSB1C3_001_VP2 clone 1
- B707 = pSB1C3_001_VP2 clone 2
- B708 = pSB1C3_001_Rep78 clone 1
- B709 = pSB1C3_001_Rep78 clone 2
- B710 = pSB1C3_001_Rep52 clone 1
- B711 = pSB1C3_001_Rep52 clone 2
- B712 = pSB1C3_lITR_CMV_ßglobin_CD_hGH_rITR clone 1
- B713 = pSB1C3_lITR_CMV_ßglobin_CD_hGH_rITR clone 2
- B714 = pSB1C3_001_VP1 clone 1
- B715 = pSB1C3_001_VP1 clone 2
Mini-Prep was performed according to standard protocol:
- P886 = pSB1C3_lITR_pTERT_ßglobin_CD_hGH_rITR clone 1 c= 232,2ng/µl
- P887 = pSB1C3_lITR_pTERT_ßglobin_CD_hGH_rITR clone 2 c= 186,2ng/µl
- P888 = pSB1C3_001_VP3 clone 1 c= 300,8ng/µl
- P889 = pSB1C3_001_VP3 clone 2 c= 284,4ng/µl
- P890 = pSB1C3_001_VP2 clone 1 c= 298,3ng/µl
- P891 = pSB1C3_001_VP2 clone 2 c= 299,9ng/µl
- P892 = pSB1C3_001_Rep78 clone 1 c= 143,9ng/µl
- P893 = pSB1C3_001_Rep78 clone 2 c= 163,4ng/µl
- P894 = pSB1C3_001_Rep52 clone 1 c= 166,6ng/µl
- P895 = pSB1C3_001_Rep52 clone 2 c= 181,6ng/µl
- P896 = pSB1C3_lITR_CMV_ßglobin_CD_hGH_rITR clone 1 c= 250,5ng/µl
- P897 = pSB1C3_lITR_CMV_ßglobin_CD_hGH_rITR clone 2 c= 173,4ng/µl
- P898 = pSB1C3_001_VP1 clone 1 c= 272,7ng/µl
- P899 = pSB1C3_001_VP1 clone 2 c= 294,8ng/µl
- P900 = pSB1C3_hGH_rITR (from B160) c= 136,7ng/µl
Test digestion:
Components | P886,887,892,893,894,895,896,897 / µl | P888,889,890,891898,899 / µl |
DNA | 1,5 | 1,5 |
Buffer | (4) 1 | (2) 1 |
BSA (10x) | 1 | 1 |
NgoMIV | 0,4 | - |
XbaI | 0,4 | - |
PstI | - | 0,6 |
XcmI | - | 0,4 |
H2O | 4,5 | 4,5 |
Total volume | 10 | 10 |
Gel:
1,0g agarose, 100 ml TAE (1%), 6 µl GELRED, Volt, running time minutes
Comment: Rep 52/78 will be checked,pSB1C3_lITR_CMV_ßglobin_CD_hGH_rITR and pSB1C3_lITR_pTERT_ßglobin_CD_hGH_rITR will be sequenced
PCR of mGMK and SR39
Investigator: Anna
Plasmids:
pSB1C3_mGMK_TK30_SDM-PstI clone 2(P804)
pSB1C3_mGMK_sr39 clone 1(P860)
Oligos:
O193: pTK30_for
O81: pmgmk_tk30_suffix_RFC25_rev
PCR Mix:
Components | Volume /µl |
Phusion Buffer | 10 |
dNTP | 1 |
Primer_for | 2,5 |
Primer_rev | 2,5 |
DNA template | 1 |
H2O | 32,5 |
Total volume | 50 |
PCR Program:
Cycles | Temperature | Time |
98°C | 60 sec | |
98°C | 15 sec | |
8x | 52°C | 25 sec |
72°C | 25 sec | |
98°C | 15 sec | |
17x | 67°C | 25 sec |
72°C | 25 sec | |
1x | 72°C | 5 min |
Hold 4°C |
Gel:
0,5 g Agarose, 50 ml TAE (1%), 3 µl GELRED , at 115 Volt
[[Image:|550px|]]
154. labday 19.10.2010
Midi-Prep
Investigator: Chris W.
Midi-Prep of:
pSB1C3_lITR_CMV_betaglobin_mVenus_hGH_rITR clone1 =P901 =B200
pSB1C3_lITR_phTERT_betaglobin_mGMK_TK30_hGH_rITR_SDM-PstI clone 2 =P902 =B697
The Midi-Preps were performed according to the standard protocol yielding the following concentrations:
plasmid-no. | P901 | P902 |
concentration (ng/µl) | 1563,63 | 1348,26 |
Continuation of PCR of mGMK and SR39
Investigator: Jessica
- vector (P320) and PCR product was digested
Components | P320 / µl | PCR product P804 and P860 / µl |
DNA | 1,5 | 20 |
Buffer | 2 | 3 |
BSA (10x) | 2 | 3 |
AgeI | 1 | 1,5 |
XbaI | 1 | 1,5 |
H2O | 14,5 | 1 |
Total volume | 20 | 30 |
Ligation
- P320 c= 5,08 ng/µl
- P804 c= 11,73 ng/µl
- P860 c= 26,57 ng/µl
- P320 + P804: 4,93µl : 3,07µl
- P320 + P860: 6,28µl : 1,72µl
Transformation with BL21 and Cm
Cloning of CMV into pSB1C3_001_VP1, pSB1C3_001_VP2 and pSB1C3_001_VP3
Investigator: Kerstin, Anna
Plasmids:
- P888: pSB1C3_001_VP3, c = 300,8 ng/µl
- P890: pSB1C3_001_VP2, c = 298,3 ng/µl
- P898: pSB1C3_001_VP1, c = 272,7 ng/µl
- P727: pSB1C3_001_CMV, c = 225,5 ng/µl
Digestion:
components | VP3 | VP2 | VP1 | CMV |
DNA | 4 | 4 | 4 | 8 |
BSA (10x) | 2 | 2 | 2 | 2 |
Buffer 4 (10x) | 2 | 2 | 2 | 2 |
Enzyme EcoI | 1 | 1 | 1 | 1 |
Enzyme XbaI | 1 | 1 | 1 | - |
Enzyme SpeI | - | - | - | 1 |
H2O | 10 | 10 | 10 | 10 |
Total | 20 | 20 | 20 |
- Digestion: 2h @ 37°C
Gel:
- 1% agarose gel, 1 µl Gelred, run for 45 min
Gel extraction
sample name | VP3 | VP2 | VP1 | CMV |
nanodrop concentrations | 44,36 | 32,33 | 22,73 | 18,5 |
expected fragment size | 4100 | 4000 | 3700 | 650 |
Ligation:
ligation name | VP3 + CMV | VP2 + CMV | VP1 + CMV |
volume of vector | 5,7 | 4,3 | 5 |
volume of insert | 3,3 | 3,7 | 3 |
T4 ligase buffer (10x) | 1 | 1 | 1 |
T4 ligase | 1 | 1 | 1 |
- Ligation @ RT for 30 min
Trafo:
Was done following the standard protocol using BL21 cells.
155. labday 20.10.2010
Midi-Prep
Investigator: Chris W.
Midi-Prep of:
pSB1C3_lITR_pTERT_ßglobin_CD_hGH_rITR clone 1 =P903 =B702
pSB1C3_lITR_CMV_ßglobin_CD_hGH_rITR clone 1 =P904 =B712
The Midi-Preps were performed according to the standard protocol yielding the following concentrations:
plasmid-no. | P903 | P904 |
concentration (ng/µl) | 832,63 | 1174,49 |
156. labday 21.10.2010
ÄKTA Chromatography and Ultrafiltration of virus particles
Investigator: Hanna
ÄKTA chromatography with VP1up_NLS_mVenus_VP2/3 containing virus particles was conducted. Fraction 5 - 10 delivered highest protein concentrations.
Sample | A(260 nm) | A(280 nm) | A(515 nm) (YFP) |
5 | 0.032 | 0.027 | 0.003 |
6 | 0.019 | 0.019 | 0.003 |
7 | 0.075 | 0.09 | 0.01 |
8 | 0.054 | 0.075 | 0.007 |
10 | -0.008 | -0.008 | 0.005 |
A further attempt was conducted which included digestion with Benzonase (1 hour) prior to ÄKTA chromatography. Following protein concentrations were obtained:
Sample | A(260 nm) | A(280 nm) | A(515 nm) (YFP) |
5 | 0.005 | 0.007 | 0.003 |
6 | 0.047 | 0.041 | 0.006 |
7 | 0.151 | 0.153 | 0.01 |
8 | 0.172 | 0.2 | 0.009 |
9 | 0.098 | 0.128 | 0.009 |
10 | 0.053 | 0.074 | 0.005 |
Ultrafiltration
Ultrafiltration of CFP_MiddleLinker_VP2/3 containing virus particles and 587-BAP virus particles were concentrated via Vivaspin-Ultrafiltration:
- 20 mL virus containing cell culture supernatant was added to GE Vivaspin 20 filter and centrifuged with 4000 g at 15°C until 750 - 1000 µL was left-
- 5 mL Bis-Trus buffer (pH 6) was added and centrifuged again with 4000 g at 15°C (washing).
- This step was repeated 3 more times.
- Membrane was carefully resuspended and cleared. Suspension was transfered to low-binding eppi and centrifuged with 10000 g for 10 minutes at 15°C.
- Supernatant was transfered to new low-binding eppi and again centrifuged with 10000 g for 10 minutes at 15°C.
- Supernatant was transfered to new low-binding eppi and stored at 4°C over night. To do: ÄKTA chromatography.
MTT Assay: Testing Superconstructs
Investigator: Anissa, Kerstin
157. labday 22.10.2010
SDS PAGE and Coomassie staining
Investigator: Hanna
Prior to performing Western Blot we decided to investigate running behaviour of different samples.
- 1. Cell debris (control)
- 2. Cell debris containing virus particles
- 3. Concentrated virus stock (containing CFP_MiddleLinker_VP2/3)
- 4. ÄKTA purified virus stock: Fraction 6
- 5. ÄKTA purified virus stock: Fraction 7
- 6. Benzonase treated, ÄKTA purified virus stock: Fraction 7
- 7. Benzonase treated, ÄKTA purified virus stock: Fraction 8
5 µL Laemmli buffer was added to 20 µL sample. Samples were incubated at 95°C for 8 minutes and loaded onto a SDS gel (10 %). SDS PAGE was performed at 90 V (collection gel) resp. 120 V (separation gel).
Gel was put into Coomassie dye, heated for 30 seconds in microwave and incubated for 1 hours shaking.
Gel was decolorized in acetic acid (20%).
Loading plan:
Marker | Concentrated Stock | ÄKTA 6 | ÄKTA 7 | Benzonase/ÄKTA 7 | Benzonase/ÄKTA 8 | - - - | - - - | Cell debris | Cell debris + Virus |
Gel picture shows that concentration works :)
In addition to that one can see that the BSA bands disappear after ÄKTA chromatography.
Next step: Western Blot of ÄKTA purified virus stocks.
158. labday 23.10.2010
159. labday 24.10.2010
Midi-Prep
Investigator: Chris W.
Midi-Prep of:
pSB1C3_001_RC_IRCK_VP2-ko_HSPG-ko_P5tataless cl1 =P966 =B523
The Midi-Prep were performed according to the standard protocol yielding the following concentration:
plasmid-no. | P966 |
concentration (ng/µl) | 310,69 |
160. labday 25.10.2010
161. labday 26.10.2010
162. labday 27.10.2010
163. labday 28.10.2010
164. labday 29.10.2010
165. labday 30.10.2010
166. labday 31.10.2010