Team:Potsdam Bioware/Lab/Labjournal/October
From 2012.igem.org
(→2012-10-20) |
(→2012-10-20) |
||
(3 intermediate revisions not shown) | |||
Line 395: | Line 395: | ||
* 120V | * 120V | ||
<b>Results:</b><br> | <b>Results:</b><br> | ||
+ | [[File:UP12_2012-10-20-nanoassemlby.jpg|300px]] | ||
* amplified nanobody/Fc showed sufficient bp-size @ 1252bp <br> | * amplified nanobody/Fc showed sufficient bp-size @ 1252bp <br> | ||
<b>Further Tasks:</b><br> | <b>Further Tasks:</b><br> | ||
Line 536: | Line 537: | ||
* 120V | * 120V | ||
<b>Results:</b><br> | <b>Results:</b><br> | ||
- | [[File:UP12_2012-10- | + | [[File:UP12_2012-10-21-amplified_assembled nano.jpg|100px ]] |
* assembled nanobody/Fc-RAGE-TMD-mcherry showed sufficient bp-size: 2,1kb<br> | * assembled nanobody/Fc-RAGE-TMD-mcherry showed sufficient bp-size: 2,1kb<br> | ||
<b>Further Tasks:</b><br> | <b>Further Tasks:</b><br> | ||
Line 790: | Line 791: | ||
* 120V | * 120V | ||
<b>Results:</b><br> | <b>Results:</b><br> | ||
+ | [[File:UP12_2012-10-22-scFVRAGEoverhang.jpg|300px ]] | ||
* amplified scFv showed sufficient bp-size @ 9102bp <br> | * amplified scFv showed sufficient bp-size @ 9102bp <br> | ||
<b>Further Tasks:</b><br> | <b>Further Tasks:</b><br> | ||
Line 919: | Line 921: | ||
<tr> | <tr> | ||
</table> | </table> | ||
- | <p style="background-color: rgb(238, 221, 130); font-weight: bold;">Topic: analytical gelelectrophoresis of | + | <p style="background-color: rgb(238, 221, 130); font-weight: bold;">Topic: analytical gelelectrophoresis of assembled scFv-RAGE-eYFP construct</p> |
<b>Investigator:</b> Sascha<br> | <b>Investigator:</b> Sascha<br> | ||
<b>Materials:</b><br> | <b>Materials:</b><br> | ||
Line 929: | Line 931: | ||
* 120V | * 120V | ||
<b>Results:</b><br> | <b>Results:</b><br> | ||
- | * assembled | + | [[File:UP12_2012-10-23-assembled RAGEscfv.jpg|300px]] |
+ | * assembled scFv-RAGE-eYFP construct showed sufficient bp-size: 1,7kb<br> | ||
<b>Further Tasks:</b><br> | <b>Further Tasks:</b><br> | ||
* PCR-Clean up of 60°C-assembling PCR-mix | * PCR-Clean up of 60°C-assembling PCR-mix | ||
- | * amplification of assembeled | + | * amplification of assembeled scFv-RAGE-eYFP construct |
===<p style="background-color: rgb(240, 20, 70);">2012-10-23</p>=== | ===<p style="background-color: rgb(240, 20, 70);">2012-10-23</p>=== |
Latest revision as of 18:24, 26 October 2012
Contents |
AID
2012-10-10
Inoculation of plasmid samples of the 48h retransformation plates (after FACS)
Investigators: Tom
Time: 2012-10-10
Materials:
- LB medium
- Amp stock solution
- plate with cultures:
EGFR-C-AID without NES, with NLS+Kozak sequence+eGFP
(after FACS selection)
Method:
Inoculation of:
5 cultures per plate in 5 ml LB medium + 5µL Amp.
(--> 5 cultures)
Further tasks:
- Miniprep
2012-10-11
Purification of Retrafo plasmids
Investigators: Rico
Results: inoculation was not successful
2012-10-26
Purification of transfected wt AID, modified AID, TAL-AID plasmids cotransfected with small antibody construct and transformation
Investigators: Rico, Stefan, Tom
Method: transfected cells were lysed, plasmids purified and transformed into E. coli cells
Antibody
2012-10-12
cell culture
Investigator:Kerstin
Topic: cell-culture
- passaging of CHO w Zeocin
- passaging of HT1080
- passaging of HEK AAV 293
- passaging of HeLa
Topic: planning new primer for integration of new RAGE-transmembrane domain and RAGE-signalpeptide
Investigator: Sascha
Materials and Methods: Geneious
Topic: Primer design and ordering for integration of RAGE-transmembrane domain into scFVconstruct and nanobody-geneart construct
Investigator: Sascha
Materials and Methods: Geneious
Results:
- scFv:startprimer-fw
- GCCTCTAGAGCTAGCATGGCAGC
- rvp:scfv+overhang to TEV/TMD
- CGCCCAAGATTCCCAGGGCCAGGGCGAGGGTGCCGCTTCCGCCGCCACCGCTTCCCCCTTGAAAATATAAATTCTCTCCAGATCCCCGTTT
GATCTCCAGTTCTGTCC
- fwp:nterm. of yfp to TMD
- CCCTGGGAATCTTGGGCGGCCTGGGGACCGCTGCCCTCTTGATCGGCGTGATCCTGTGGCAGAGAAGGTCTGGAGTGAGCAAGGGCGAG
GAGC
- scFv:endprimer-rv
- GAGCTGCAGCGGCCG
- rage:startprimer-fw_nano/Fc
- CTTGAATTCGCGGCCG
- rage-rv:Fc to rageTMD
- CGCCCAAGATTCCCAGGGCCAGGGCGAGGGTGCCGCTTCCTAATAACTTCGTATAATGTATGCTATACGAAGTTATCCC
- rage-fwp:mcherry/rageTMD
- CCCTGGGAATCTTGGGCGGCCTGGGGACCGCTGCCCTCTTGATCGGCGTGATCCTGTGGCAGAGAAGGGGCTCCATGGTGTCCAAGG
- rage:endprimer in mcherry/loxp
- AAGTCACTGCAGCGGCC
2012-10-15
cell culture
Investigator:Kerstin
Topic: cell-culture
- passaging of CHO w Zeocin
- passaging of HT1080
- passaging of HEK AAV 293
- passaging of HeLa
2012-10-17
cell culture
Investigator:Kerstin
Topic: cell-culture
- passaging of CHO w Zeocin
- passaging of HT1080
- passaging of HEK AAV 293
- passaging of HeLa
- passaging of stably transfected Clones 4.1, 4.2, 4.3, 4,4, 29.1, 29.2, 29.3 with 550µg/ml Hygromycin
2012-10-19
cell culture
Investigator:Stefan/Kerstin
Topic: cell-culture
- passaging of CHO w Zeocin
- passaging of HT1080
- passaging of HEK AAV 293
- passaging of HeLa
PCR: amplification of EYFP and mcherry with overhang of new RAGE-TMD
Investigators: Sascha
Materials:
- Template: EYFP_Bba_E0030 and nano body-geneart-construct
- Phusion-polymerase
- 10x Phusion buffer HF
- dNTPs (10mM)
- eYFP: fwp:nterm. of yfp to TMD; primerVI: c-terminus of eyfp w
- mcherry: rage-fwp:mcherry/rageTMD; rage:endprimer in mcherry/loxp
- Thermocycler
Methods: 2x master mix of each: eYFP and mcherry
reagent | volume [µL] |
10x Phusion HF buffer | 20 |
dNTPs | 2 |
fwp:nterm. of yfp to TMD; rage-fwp:mcherry/rageTMD | 5 |
primerVI: c-terminus of eyfp w; rage:endprimer in mcherry/loxp | 5 |
template EYFP (10ng/µl); template nanobody-geneart-construct (10ng/µl) | 2 |
Phusion Polymerase | 1,0 |
water | 66 |
Program
step | Temperature [°C] | duration [s] | cycles |
initial denaturation | 98 | 30 | 1 |
denaturation | 98 | 8 | 30 |
annealing | gradient: 64,7°C/71°C for eYFP; 62,0°C/66,1°C for nanobody-geneart-construct | 10 | 30 |
elongation | 72 | 15 | 30 |
final elongation | 72 | 600 | 1 |
cooling | 8 | ∞ | 1 |
Topic: preparative gelelectrophoresis of amplified EYFP and mcherry with RAGE-TMD and RAGE-signalpeptide overhangs
Investigator: Sascha
Materials:
- agarose
- 1xTAE-buffer
- 10xFD Green Buffer
Method:
- 1% agarosegel, 55ml
- 120V
- amplified eYFP and mcherry showed sufficient bp-size after PCR
Further Tasks:
- gel extraction and concentration measurement
- amplification of scFv-fragment and nanobody/Fc
gel extraction of amplified eYFP and mcherry out of 1% agarosegel
Investigators:Sascha
Results:
[eYFP] =
[mcherry] =
Further Taks:
- extension PCR of scFv and nanobody
2012-10-20
PCR: amplification of nanobody/Fc with overhang of new RAGE-TMD
Investigators: Sascha
Materials:
- Template: nanobody-geneart-construct
- Phusion-polymerase
- 10x Phusion buffer GC
- dNTPs (10mM)
- nanobody-geneart-construct: rage:startprimer-fw_nano/Fc; rage-rv:Fc to rageTMD
- Thermocycler
Methods: 2x master mix of each: eYFP and mcherry
reagent | volume [µL] |
10x Phusion BC buffer | 20 |
dNTPs | 2 |
rage:startprimer-fw_nano/Fc | 5 |
rage-rv:Fc to rageTMD | 5 |
template nanobody-geneart-construct (10ng/µl) | 6 |
Phusion Polymerase | 1,0 |
water | 92 |
Program
step | Temperature [°C] | duration [s] | cycles |
initial denaturation | 98 | 30 | 1 |
denaturation | 98 | 8 | 30 |
annealing | 520°C/62°C/65,5°C | 10 | 30 |
elongation | 72 | 15 | 30 |
final elongation | 72 | 600 | 1 |
cooling | 8 | ∞ | 1 |
Topic: preparative gelelectrophoresis of amplified nanobody/Fc with RAGE-TMD overhangs
Investigator: Sascha
Materials:
- agarose
- 1xTAE-buffer
- 10xFD Green Buffer
Method:
- 1% agarosegel, 55ml
- 120V
- amplified nanobody/Fc showed sufficient bp-size @ 1252bp
Further Tasks:
- gel extraction and concentrations measurement
gel extraction of amplified eYFP and mcherry out of 1% agarosegel
Investigators:Sascha
Results:
[nanobody/FC] = 2,5ng/µl</b>
Further Taks:
- extension PCR of scFv and nanobody
- assembly-PCR of nanobody/Fc with mherry via RAGE-transmembrane domain
PCR: assembly-PCR of nanobody/Fc with mcherry over RAGE-TMD
Investigators: Sascha
Materials:
- Template: nanobody/FC and mcherry with TMD-overhangs
- Phusion-polymerase
- 10x Phusion buffer GC
- dNTPs (10mM)
- Thermocycler
Methods: 2x master mix of each: eYFP and mcherry
reagent | volume [µL] |
10x Phusion BC buffer | 20 |
dNTPs | 2 |
rage:startprimer-fw_nano/Fc was added after 15 assembling cycles | 5 |
rage:endprimer in mcherry/loxp was added after 15 assembling cycles | 5 |
templates: nanobody/FC with TMD-overhangs ; mcherry with TMD-overhangs (10ng/µl) | 2µl of mcherry and 8µl of nanobody/Fc |
Phusion Polymerase | 1,0 |
water | 57 |
Program
step | Temperature [°C] | duration [s] | cycles |
initial denaturation | 98 | 30 | 15 |
denaturation | 98 | 10 | 15 |
annealing | 60°C/70°C | 12 | 15 |
elongation | 72 | 38 | 15 |
initial denaturation | 98 | 30 | 15 |
denaturation | 98 | 10 | 15 |
annealing | 60°C/70°C | 12 | 15 |
elongation | 72 | 38 | 15 |
final elongation | 72 | 600 | 1 |
cooling | 8 | ∞ | 1 |
Topic: analytical gelelectrophoresis of amplified assembled nanobody/Fc with RAGE-TMD overhangs
Investigator: Sascha
Materials:
- agarose
- 1xTAE-buffer
- 10xFD Green Buffer
Method:
- 1% agarosegel, 55ml
- 120V
Results:
100px
- assembled nanobody/Fc-RAGE-TMD-mcherry showed sufficient bp-size: 2,1kb
Further Tasks:
- PCR-Clean up of 60°C-assembling PCR-mix
- amplification of assembeled nanobody/Fc-RAGE-TMD-mcherry
PCR-Clean up of preparative gel electrophoresis of assembled nanobody/Fc-RAGE-TMD-mcherry and concentration measurement
Investigator: Sascha
Materials:
- NucleoSpin Gel and PCR Clean-up kit (Macherey-Nagel)
Methods:
- according to CleanUp-protocol
Results:
[assembled nanobody/Fc-RAGE-TMD-mcherry ] =
Further Taks:
- preparative gel electrophoresis of assembled nanobody/Fc-RAGE-TMD-mcherry
2012-10-21
Topic: preaparative gel electrophoresis of assembled nanobody/Fc-RAGE-TMD-mcherry
Investigator: Stefan
Materials:
- agarose
- 1xTAE-buffer
- 10xFD Green Buffer
Method:
- 1% agarosegel, 55ml
- 120V
Results:
- assembled nanobody/Fc-RAGE-TMD-mcherry showed sufficient bp-size: 2,1kb
Further Tasks:
- gel extraction
- cloning into pcDNA5FRT
2012-10-22
cell culture
Investigator:Kerstin
Topic: cell-culture
- passaging of CHO w Zeocin
- passaging of HT1080
- passaging of HEK AAV 293
- passaging of HeLa
- transfection of stably transfected clone 29.1 with Cre Recombinase
- seeding of HT1080 in Ibidi Dish for infection with virus
2012-10-22
gel extraction of assembled nanobody/Fc-RAGE-TMD-mcherry out of 1% agarosegel
Investigators:Sascha
Results:
[assembled/amplified nanobody/Fc-RAGE-TMD-mcherry] = 60,4ng/µl
Further Taks:
- cloning into pcDNA5FRT
preparative digestion of assembled/amplified nanobody/Fc-RAGE-TMD-mcherry with NheI and ApaI
Investigator: Sascha
Materials:
- Fast Digest NheI
- Fast Digest ApaI
- 10x FD Green Buffer
- assembled/amplified nanobody/Fc-RAGE-TMD-mcherry
- sterile water
Method:
2x
- 20µl pcdna5frt (60,4ng/µl)
- 2µl NheI
- 2µl ApaI
- 3µl 10x FD Green Buffer
- 4µl sterile water
- digestion for 1h at 37°C
>Results:
Further Tasks:
- PCR-Clean Up
PCR-Clean up of digested assembled/amplified nanobody/Fc-RAGE-TMD-mcherry and concentration measurement
Investigator: Sascha
Materials:
- NucleoSpin Gel and PCR Clean-up kit (Macherey-Nagel)
Methods:
- according to CleanUp-protocol
Results:
[assembled/amplified nanobody/Fc-RAGE-TMD-mcherry] = 6ng/µl
Further Taks:
- ligation with pcDNA5FRT (dephos +dig)
ligation of digested dephosporylated pcDNA5FRT (NheI+ApaI) and digested assembled/amplified nanobody/Fc-RAGE-TMD-mcherry (NheI+ApaI)
Investigator: Sascha
Materials:
- ligation calculator: http://www.insilico.uni-duesseldorf.de/Lig_Input.html
- T4 DNA ligase
- ligase buffer
- digested geneart-nanobody-construct
- digested and dephosporylated pcDNA5FRT
Method: ligation-ratio--> 1:3
:
- 1µl T4 DNA ligase
- 2µl T4 DNA-ligase buffer
- 15 ng dig. pcDNA5FRT
- 15 ng insert (assembled/amplified nanobody/Fc-RAGE-TMD-mcherry)
- sterile water ad 20µl
- 1:0 religation; same mix without insert
Further Tasks:
- transformation of ligation mix into XL1-blue competent E. coli cells
- incubation for 60min at RT
Further Tasks:
- transformation of ligation mix into XL1-blue competent E. coli cells
Transformation of ligated pcDNA5FRT- assembled/amplified nanobody/Fc-RAGE-TMD-mcherry into new XL1-blue competent E. coli cells
Investigator: Sascha
Materials:
- Bunsen Burner, Agar Plate with Ampicillin, 37 °C thermo mixer, centrifuge,
- 12 µl of each ligation mix
- icebox
- new competent E. coli cells (XL 1)
Method:
- according to manual
- 20µl of resuspended cell-suspension were plated on a LB-Amp-plate
- incubation o.n. at 37°C
Further Tasks:
- picking clones
PCR: amplification of scFv with overhang of new RAGE-TMD
Investigators: Sascha
Materials:
- Template: scFv_Bba pks…bla
- Phusion-polymerase
- 10x Phusion buffer HF
- dNTPs (10mM)
- rvp:scfv+overhang to TEV/TMD; primerI-fw:rage-signal, xbaI,
- Thermocycler
Methods: 3x master mix of each: scFv
reagent | volume [µL] |
10x Phusion HF buffer | 30 |
dNTPs | 3 |
scfv+overhang to TEV/TMD | 5 |
primerI-fw:rage-signal, xbaI | 5 |
template scFv_Bba pks…bla (10ng/µl) | 3 |
Phusion Polymerase | 1,5 |
water | 195 |
Program
step | Temperature [°C] | duration [s] | cycles |
initial denaturation | 98 | 30 | 1 |
denaturation | 98 | 8 | 30 |
annealing | 53°C/60°C/71°C | 10 | 30 |
elongation | 72 | 15 | 30 |
final elongation | 72 | 600 | 1 |
cooling | 8 | ∞ | 1 |
Topic: preparative gel electrophoresis of amplified scFv with RAGE-TMD overhangs
Investigator: Sascha
Materials:
- agarose
- 1xTAE-buffer
- 10xFD Green Buffer
Method:
- 1% agarosegel, 55ml
- 120V
- amplified scFv showed sufficient bp-size @ 9102bp
Further Tasks:
- PCR-Clean Up of amplified scFv
gel extraction of amplified scFv-RAGE-TMD out of 1% agarosegel
Investigators:Sascha
Results:
[amplified scFv-RAGE-TMD] = 60,4ng/µl
Further Taks:
- assembling with eYFP-RAGE overhang
PCR: assembly-PCR of scFv with eYFP over RAGE-TMD
Investigators: Sascha
Materials:
- Template: scFv with eYFP with TMD-overhangs
- Phusion-polymerase
- 10x Phusion buffer GC
- dNTPs (10mM)
- Thermocycler
Methods: 3x master mix of each: eYFP
reagent | volume [µL] |
10x Phusion GC buffer | 30 |
dNTPs | 3 |
scFv:startprimer-fw, was added after 15 assembling cycles | 7,5 |
scFv:endprimer-rv was added after 15 assembling cycles | 7,5 |
templates: scFv with TMD-overhangs and RAGTE-signalpeptide (10ng/µl); eYFP with TMD-overhangs (10ng/µl) | 1µl of eYFP and 1µl of scFv |
Phusion Polymerase | 1,5 |
water | 96,5 |
Program
step | Temperature [°C] | duration [s] | cycles |
initial denaturation | 98 | 30 | 15 |
denaturation | 98 | 10 | 15 |
annealing | 60°C/70°C | 12 | 15 |
elongation | 72 | 38 | 15 |
initial denaturation | 98 | 30 | 15 |
denaturation | 98 | 10 | 15 |
annealing | 60°C/70°C | 12 | 15 |
elongation | 72 | 38 | 15 |
final elongation | 72 | 600 | 1 |
cooling | 8 | ∞ | 1 |
Topic: analytical gelelectrophoresis of assembled scFv-RAGE-eYFP construct
Investigator: Sascha
Materials:
- agarose
- 1xTAE-buffer
- 10xFD Green Buffer
Method:
- 1% agarosegel, 55ml
- 120V
- assembled scFv-RAGE-eYFP construct showed sufficient bp-size: 1,7kb
Further Tasks:
- PCR-Clean up of 60°C-assembling PCR-mix
- amplification of assembeled scFv-RAGE-eYFP construct
2012-10-23
cell culture
Investigator:Stefan
Topic: cell-culture
- seeding of CHO and HeLa in Ibidi Dishes for transfection with new Nanobody RAGE construct
- infection with Virus (CFP on surface and YFP as GOI, AAV with Sortase motif)
gelextracton of scFv-RAGE-TMD-EYFP in Flp-In vector construct out of 1% agarosegel
Investigators:Maria
Aim: gelextraction and preparation of cleaned scFv-RAGE-TMD construct
Materials:
- Gel-Clean-Up Kit
Method:
- according to manual
Results:
- 32,6 ng/µl
Further tasks:
- digestion with NheI and ApaI
preparative digestion of scFv-RAGE-TMD construct with NheI and ApaI
Investigator: Maria
Aim: digestion of scFv-RAGE-TMD construct with NheI and ApaI for ligation into Flp-in vector
Materials:
- Fast Digest NheI
- Fast Digest ApaI
- 10x FD Green Buffer
- scFv construct
- sterile water
Method:
- 18,4µl scFv construct
- 2µl NheI
- 2µl ApaI
- 3µl 10x FD Green Buffer
- 4,6µl sterile water
- digestion for 2,5h at 37°C
Further Tasks:
- PCR clean-up
- ligation into
PCR clean-up of scFv-RAGE-TMD construct
Investigator:Maria
Aim: cleaning of scFv-RAGE-TMD
Materials:
- PCR-Clean-Up Kit
Method:
- according to manual
Results:
- concentration of cleaned scFv-RAGE-TMD = 19,7 ng/µl
ligation of digested scFv-RAGE-TMD construct and dephosporylated Flp-In vector
Investigator: Maria
Aim: ligation of digested scFv construct with Flp-In vector
Materials:
- ligation calculator: http://www.insilico.uni-duesseldorf.de/Lig_Input.html
- T4 DNA ligae
- ligase buffer
- digested scFv construct
- digested and dephosporylated Flp-In vector
Method: ligation-ratio--> 1:3
- 1µl T4 DNA ligase
- 2,5µl T4 DNA-ligase buffer
- 3,3µl digested scFv (19,7ng/µl)
- 1µl digested Flp-In vector (60,4ng/µl)
- 12,2µl sterile water
- incubation for 1h at RT
Further Tasks:
- transformation of ligation mix into XL1-blue competent E. coli cells
Transformation of ligated scFv-Flp-In vector into new XL1-blue competent E. coli cells
Investigator: Sascha
Materials:
- Bunsen Burner, Agar Plate with Ampicillin, 37 °C thermo mixer, centrifuge,
- 10 µl of cFv-Flp-In vector
- icebox
- competent E. coli cells (XL 1)
Method:
- according to manual
- 20µl of resuspended cell-suspension were plated on a LB-Cm-plate
- incubation o.n. at 37°C
Further Tasks:
- picking clones
2012-10-24
cell culture
Investigator:Stefan/Kerstin
Topic: cell-culture
- Transfection of new Nanobody RAGE construct in CHO and HeLa
- seeding of CHO and HeLa in Ibidi Dishes for transfection with new scFv RAGE construct
- passaging of CHO w Zeocin
- passaging of HT1080
- passaging of HEK AAV 293
- passaging of HeLa
Endotoxin free preparation of nanobody/Fc-RAGE-TMD-mcherry
Investigator:Maria
Materials: endotoxin free Mediprep kit, overnight culture
Methods: according to manual
Results: <b/>
clone 2: 880,3 ng/µl
Further tasks: transient and stable transfection of CHO cells
2012-10-25
cell culture
Investigator:Stefan/Kerstin
Topic: cell-culture
- transfection of new scFv RAGE construct
- transfection of TAL-AID from cooperation with Freiburg iGEM Team in CHO cells (co-transfection with clone 4)
- purification of Nanobody from supernatant of Cre recombinase transfected cells with magnetic beads
- Western Blot of purified Nanobody
Mini Prep of scFv-Flp-In vector clones
Investigator:Maria
Materials: overnight cultures scFv-Flp-In clones, Mini prep kit
Methods: according to manual
Results:
Clon I: 514,8 ng/µl
Clon II: 673 ng/µl
Clon III: 639,7 ng/µl
Clon VI: 499 ng/µl
Further tasks: analytical digestion, analytical gelelectrophoresis
analytical digestion of ligated scFv-Flp-In construct
Investigators:Maria
Materials:
- all 4 prepared scFv-Flp-In clones
- FastDigest StuI, SpeI and PstI
- 10x FD Green Buffer
- sterile water
Method:
I:
- 10µl mix: 1µl StuI, 1µl 10x FD Green Buffer, 1µl of each clone respectively (approximately 250 ng DNA), sterile water add to 10µl
II:
- 10µl mix: 1µl StuI, 1µl 10x FD Green Buffer, 1µl of each clone respectively (approximately 250 ng DNA), sterile water add to 10µl
- incubation at 37°C for 30 min
further tasks:
- analytical gelelectrophoresis
Gelelectrophoresis of analytical digested scFv-Flp-In construct
Investigators:Maria
Aim: checking plasmid-size after ligation of Flp-In vector with scFv-RAGE-TMD in 1% agarosegel
Materials:
- agarose
- 1xTAE-buffer
- 10xFD Green Buffer
Method:
- 1% agarosegel, 100ml
- 120 V
Results:
- ligation successful
Further Tasks:
- endotoxin free of clone
Endotoxin free preparation of scFv-RAGE-TMD
Investigator:Maria
Materials: endotoxin free Mediprep kit, overnight culture
Methods: according to manual
Results: <b/>
clone 1: 2349,7 ng/µl
Further tasks: transient and stable transfection of CHO cells
Virus
2012-10-19
EGFRd3 purification
Investigator: Tobias/Xenia
Aim: Periplasma-Extract
Materials:
- E. coli with expressed EGFR
- Extraction buffer (50 mM Tris, 150 mM NaCl, 500 mM sucrose)
- loading buffer (50 mM Tris, 150 mM NaCl, 30 mM imidazol)
Method:
- resuspend E. coli with extraction buffer
- incubate 2 hours at 4°C
- centrifuge and take supernatant
- dialyze against loading buffer over night
Further tasks:
- purification with Ni-NTA
2012-10-20
EGFRd3 purification
Investigator: Tobias
Aim: Purification with Ni-NTA
Materials:
- protein extract in loading buffer (50 mM Tris, 150 mM NaCl, 30 mM imidazol)
- wash buffer (50 mM Tris, 150 mM NaCl, 30 mM imidazol)
- elution buffer (50 mM Tris, 150 mM NaCl, 250 mM imidazol)
- Ni-NTA column (1 mL volume)
Method:
- loading Ni-NTA column with protein extract
- wash column with wash buffer (10fold column volume)
- elution with elution buffer and seperate ca. every 1 ml
- control purity with SDS-PAGE
Results:
Further tasks:
- concentrate purified EGFR and ligate with sortase