Team:Heidelberg/Notebook/Killing I/Notebook/week4

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Latest revision as of 11:49, 29 October 2008

<< Week 3	Overview	Week 5 >>

Week 4

Monday, 08/25/08

project planning

we finally received the strains sent to us by Prof. Bagdasarian. Beginning of next week we should also receive those from Prof. Derbyshire.
this means we have to do mini(or maxi)-preps to get the plasmids from which we can amplify the oriT and the helper plasmids (RP1/4, pUB307 if we need this).
We received the strains from Prof. Derbyshire. He sent us pUB307, RSF1010, pED350, pED361, pED369 and pED374.
we received two plates with bacteria containing pUB307. We picked 4 colonies and inoculated them in with canamycin.
we received the glycerol stocks of the cI from the registry and inoculated these for a maxiprep in LB with ampicilin.

Phage cloning strategy one

Digestion of the small XbaI-XhoI lambda-fragment with AgeI

18µl DNA (from gel purification kit)
5µl AgeI
5µl NEB4
4µl water

- the digestion of the small lambda fragment showed no DNA on the gel...

we amplified GAM, GFP, Chloramphenicol and the OriT from Prof. Bagdasarian via PCR:

2µl  Forward Primer
2µl  Reverse Primer
25µl  Phusion Mastermix
10ng DNA Template
fill up to 50µl with water

PCR protocol
98°C 1min
98°C 30s  |
55°C 30s  | 25x
72°C 90s  |
72°C 5min

Results of PCR:

lane2: GAM fragment (~1.44kb)
lane3: GFP fragment (~0.92kb)
lane4: oriT fragment (~0.52kb)
lane5: CmR fragment (~0.66kb)
lane6: DNA ladder mix

NOTE: we have to find suitable names for all our OriT-Sequences and Helper Plasmids from the different research groups!!!

Retransformation of the plasmids received from Prof. Derbyshire (he recommended to do this, because the DNA is very old)
- pUB307 - Canamycin resistance
- pED369 - Ampicilin resistance
- pED350 - Amp
- pEd361 - Amp
- pED374 - Amp
- We need streptomycin or sulphonamides to select the RSF1010...

Digestion of pUB307 (Lanka) (4 minipreps), J01101 (cI) and small fragment (XbaI/XhoI)

lane0: DNA ladder mix
lane1: pUB307 (1) undigested
lane2: pUB307 (1) EcoRI
lane3: pUB307 (2) undigested
lane4: pUB307 (2) EcoRI
lane5: pUB307 (3) EcoRI
lane6: pUB307 (4) EcoRI
lane7: cI undigested (3kb)
lane8: cI SfcI/HinDIII (1365/678/451/386/191)
lane9: small fragment AgeI (1,7kb/7,3kb)

Maxiprep
- cI
- pED 374

Miniprep
- pED 361
- pED 350

Nanodrop measurements
- CB2633 (OriT) 26,5 ng/µl; 2,25
- CB1133 (RP4) 39,6 ng/µl; 1,91
- CI Maxi 771,4 ng/µl, 1,93
- pUB207 ("Lanka")
  - assay 1 50,8 ng/µl 2,02
  - assay 1 60,5 ng/µl 2,02
  - assay 1 62,7 ng/µl 1,97
  - assay 1 62,7 ng/µl 2,02
- pED 361 42,7 ng/µl; 1,94
- pED 374 (Maxi) 87,7 ng/µl; 2,09
- pED 350 47,7 ng/µl; 2,13
- pUB 307 (Maxi) 269,4 ng/µl; 2,03
- pED 369 (Maxi) 383,5 ng/µl; 1,96

Lambda cI 857 chemical transformation into DH5alpha and Top10 - no colony
make DH5alpha and Top10 MgSO4-Stock
- 100ul competent bacteria + 4ml StandardI/0.2%Maltose
- 37C 3h
- 8min 3750rpm RT
- pellet dissolved in 3ml 0.01M MgSO4
- This Stock can be needed for phage infection, 10ul for one infection setting.
- This Stock can be used up to 1week (stored by RT)

Lambda cI 857(Chris) amplification
- cut one plaque from the softgel, incubate in 0.5ml LambdaBuffer + 2 drops Chloroform, RT, 4.5h
- 50ul of the phage (see last line)+10ul DH5alpha MgSO4-Stock+200ul LambdaBuffer, 37C, 25min
- platte NZY softgel with agarose

NZY medium
10g/L NZ-amine (casein)
5g/L Yeastextract
5g/L NaCl
2g/L MgSO4
for gel: +1.5% agar/agarose
for softgel: +0.7% agar/agarose + 0.2%maltose

- no plaque
Lambda cI- ZMBH amplification
- 1ul phage LambdacI-ZMBH +10ul DH5alpha MgSO4-Stock+200ul LambdaBuffer, 37C, 25min
- platte NZY softgel with agarose
- completly lysed on the follow day

Tuesday, 08/26/08

Phage cloning strategy one

Lambda cI 857 transformation
- chemical into MG1655, Top10
- electroporation into Top 10 F' of AG Mayer
- 5 plaques by E-Top10 (maybe), 1plaque by MG1655 (maybe)

DNA purification of cI- ZMBH (see last day)
- follow kit, dissolve the DNA pellet in 200ul ddH2O + 2ul 1M Tris (8.0)
- we have a band!!!! concentration: maybe 1ng/µl

Wednesday, 08/27/08

repetition of PCR of GAM (2 vials), oriT (2), GFP (2) and CmR (3 vials)
results:

lane0: ladder
lane1: GAM fragment (~1.44kb)
lane2: GAM fragment (~1.44kb)
lane3: oriT fragment (~0.52kb)
lane4: oriT fragment (~0.52kb)
lane5: GFP fragment (~0.92kb)
lane6: GFP fragment (~0.92kb)
lane7: CmR fragment (~0.66kb)
lane8: CmR fragment (~0.66kb)
lane9: CmR fragment (~0.66kb)
lane10: blank
lane11: DNA ladder mix

no band in oriT and GFP visible --> reload these samples on another gel

lane0: DNA ladder mix
lane1: oriT fragment (~0.52kb)
lane2: oriT fragment (~0.52kb)
lane3: GFP fragment (~0.92kb)
lane4: GFP fragment (~0.92kb)

Maxiprep
- pUB 307
- pED 369

cI sent to GATC for sequenzing

digestion of lambda-DNA with XhoI-XbaI following the old protocol
if AgeI still doesn't work, we're going to have to check if we got the restriction site right and/or test the enzyme with another plasmid

Gel
- lane2: ladder
- lane3: digestion of lambda-DNA with XhoI-XbaI
- lane 4 - 8: assays of Yin
- the gel was somehow damaged when we took out of the gel chamber. it was impossible to go on working from it

Gel

- lane 0: DNA ladder mix
- lane 1: pED374 1 (Purified PCR Product)
- lane 2: pED374 2 (Purified PCR Product)
- lane 3: GFP 1 (Purified PCR Product)
- lane 4: GFP 2 (Purified PCR Product)
- lane 5: OriT 1 (Purified PCR Product)
- lane 6: OriT 2 (Purified PCR Product)

Overnight digestion
- Lambda cI 857 with XbaI-XhoI
- lambda ZMBH cI- digestion with XbaI-XhoI
- lambda DNA with AgeI to test the enzyme

Lambda cI- ZMBH digestion with XbaI and XhoI
- no fragment. Lambda cI- ZMBH is a bit smaller than Lambda cI 857

Lambda cI 857 Amplification
- plaques by electroporation (see the day before)
- one plaque by chemical transformation MG1655
- cut and incubate the plaque (see Monday)by 4°C overnight

Thursday, 08/28/08

cI

the sequence of the cI we received from MIT was wrong and corresponded to GFP instead. We will do another prep this evening so that we can send the "cI" to GATC again tomorrow.

Phage cloning strategy one

Glycerolstocks of pBAD33 and pBluescript
- in the freezer in the cellar
- 1ml bacteria culture, 150 µl Glycerol 80%, vortex, let stand for one hour

Maxiprep
- pBAD33
- pBluescript

Miniprep
- cI

infection of dh5alpha by Lambda cI 857 (supernatant of the plaque incubate, see the day before)
- one plate with eletroporation-Lambda cI 857, one plate with chemical transformation Mg1655-Lambda cI 857
- complettly lysed on the follow day

Friday, 08/29/08

cI

cI sent to GATC again)

Phage cloning strategy one

Lambda DNA purification (follow kit, like Tue)
- run the DNA in 1% gel: no signal
- no DNA? to low concentration? lost the DNA by the purification?

In vitro Packaging
- follow kit, pack Lambda cI 857
- titering with DH5alpha, MG1655
  - DH5alpha: very nice infection, a lot of plaques. titer:10^7puf/ml
  - MG1655: the infectionrate is lower than with DH5alpha, but also many plaques. Titer: 4*10^6pmf/ml

Teammeeting in the afternoon

<< Week 3	Overview	Week 5 >>

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-			<a href="https://2008.igem.org/Team:Heidelberg/Notebook/Sensing_Group/Notebook" style="color: white">Notebook<!--[if gt IE 6]><!--></a><!--<![endif]-->
+			<a href="https://2008.igem.org/Team:Heidelberg/Notebook/Overview" style="color: white">Notebook<!--[if gt IE 6]><!--></a><!--<![endif]-->
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-			<a href="https://2008.igem.org/Team:Heidelberg/Project/General_information" style="color: white">Human Practice<!--[if gt IE 6]><!--></a><!--<![endif]-->
+			<a href="https://2008.igem.org/Team:Heidelberg/Human_Practice/Project_Overview" style="color: white">Human Practice<!--[if gt IE 6]><!--></a><!--<![endif]-->
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                                 <li><a href="https://2008.igem.org/Team:Heidelberg/Human_Practice/Surveys"><span><span>Surveys</span></span></a></li>
                                 <li><a href="https://2008.igem.org/Team:Heidelberg/Human_Practice/Open_Day"><span><span>Open Day</span></span></a></li>
                                 <li><a href="https://2008.igem.org/Team:Heidelberg/Human_Practice/Nobel_Prize"><span><span>Nobel Prize</span></span></a></li>
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 </html>
+{| class="wikitable"
+|- bgcolor=white
+! height=20px, width=250px | [[Team:Heidelberg/Notebook/Killing_I/Notebook/week3|<< Week 3]]|| width=500px | [[Team:Heidelberg/Notebook/Killing_I/Notebook|Overview]]|| width=250px | [[Team:Heidelberg/Notebook/Killing_I/Notebook/week5| Week 5 >> ]]
+|-style="height:20px"
+|}
-[[Team:Heidelberg/Notebook/Killing_I/Notebook|Back to the overview]]
+'''Week 4'''
 ==Monday, 08/25/08==
@@ Line 135: / Line 482: @@
-===first phage cloning strategy===
+===Phage cloning strategy one===
 * Digestion of the small XbaI-XhoI lambda-fragment with AgeI
 µl DNA (from gel purification kit)
@@ Line 249: / Line 596: @@
 ==Tuesday, 08/26/08==
-===first phage cloning strategy===
+===Phage cloning strategy one===
 * Lambda cI 857 transformation
 ** chemical into MG1655, Top10
@@ Line 336: / Line 683: @@
 * the sequence of the cI we received from MIT was wrong and corresponded to GFP instead. We will do another prep this evening so that we can send the "cI" to GATC again tomorrow.
-===first phage cloning strategy===
+===Phage cloning strategy one===
 * Glycerolstocks of pBAD33 and pBluescript
 ** in the freezer in the cellar
@@ Line 360: / Line 707: @@
-===first phage cloning strategy===
+===Phage cloning strategy one===
 * Lambda DNA purification (follow kit, like Tue)
 ** run the DNA in 1% gel: no signal
@@ Line 373: / Line 720: @@
 ===Teammeeting in the afternoon===
+{| class="wikitable"
+|- bgcolor=white
+! height=20px, width=250px | [[Team:Heidelberg/Notebook/Killing_I/Notebook/week3|<< Week 3]]|| width=500px | [[Team:Heidelberg/Notebook/Killing_I/Notebook|Overview]]|| width=250px | [[Team:Heidelberg/Notebook/Killing_I/Notebook/week5| Week 5 >> ]]
+|-style="height:20px"
+|}

Team:Heidelberg/Notebook/Killing I/Notebook/week4

From 2008.igem.org

Latest revision as of 11:49, 29 October 2008

Contents

Monday, 08/25/08

project planning

Phage cloning strategy one

Tuesday, 08/26/08

Phage cloning strategy one

Wednesday, 08/27/08

Thursday, 08/28/08

cI

Phage cloning strategy one

Friday, 08/29/08

cI

Phage cloning strategy one

Teammeeting in the afternoon