Team:Heidelberg/Notebook/Killing II/9thweek
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<body> | <body> |
Revision as of 15:44, 27 October 2008
9th week
Contents |
Monday 09/29/2008
pSB1A3-Receiver-Colicin cloning
- Digestion of pSB1A3-Receiver-ColicinE9/E9lys: E9 -> 61, 63; E9lys -> 34, 35, 47
10 µl DNA 5 µl BSA 10x (NEB) 5 µl EcoRI Buffer (NEB) 1 µl EcoRI 1 µl PstI 28 µl H2O ----- 50 µl
- Gel of Digestion: 1% Agarose, 135 V, 30 min
- Results of Digestion:
HisTag cloning of Colicins for purification
- PCR-Screen of pQE-30-Col E9 His
25.0 µl Taq Master Mix (Fermentas) 2.5 µl ColE9_prot_fw_BamHI 2.5 µl ColE9_prot_rv_XmaI 20.0 µl H2O 1 colony ------- 50.0 µl
program:
95 °C 3 min 95 °C 1 min | 54 °C 1 min | 30 cycles 72 °C 1 min | 72 °C 10 min 4 °C constant
- Gel of E9 PCR-Screen: 1% Agarose, 135 V, 30 min
- Gel-Results of E9-PCR-Screen: Negative controll shows right band size -> its maybe a supercoiled form of the plasmid. No positive clones.
Sender cloning: pBAD-sender
- Digestion of Sender pBAD: 1h 40min at 37°C
10 µl DNA (1) 5 µl NEBuffer 2 (NEB) 5 µl BSA 10x 1 µl XbaI 1 µl SpeI 28 µl H2O ----- 50 µl
- Gel of Digestion: 1% Agarose, 135 V, 30 min
- Results of Digestion:
- I0500+F1610:
- Expected Fragments:
- ~ 2030bp (Insert: I0500+F1610)
- ~ 4425bp (Backbone: pSB2K3)
- Expected Fragments:
- I0500+F1610:
No bands visible. Probably no DNA or low concentrated DNA. Nanodrop measurement ~80ng/µl. Despite of neg. digestion we sended one probe to GATC for sequencing.
- J23107+F1610:
- Expected Fragments:
- ~ 850bp (Insert: J23107+F1610)
- ~ 2070bp (Backbone: J61002)
- Expected Fragments:
- J23107+F1610:
Expected bands are visible on the gel. Probes send for sequencing (GATC.
Sender cloning: constitutive promotor-sender
- Digestion of Sender with constitutive promotor: 1h 40min at 37°C
10 µl DNA (1) 5 µl NEBuffer 2 (NEB) 5 µl BSA 10x 1 µl XbaI 1 µl SpeI 28 µl H2O ----- 50 µl
- Gel of Digestion: 1% Agarose, 135 V, 30 min
- Results of Digestion:
Tuesday 09/30/2008
pSB1A3-Receiver-Colicin cloning
Receiver-Colicin E9/E9_lys
- Sequencing results: The colonies 34, 35 and 47 contains the right insert. But the sequences behind the BioBrick Suffix do not fit to [http://partsregistry.org/Part:pSB1A3 pSB1A3] vector. The sequence which we received from GATC has 78 bp less than the one from partsregistry.org. To fix this problem we aligned our sequencing results against the pSB1A2 vector and they fit perfect. Because of that we assume that our BBa_T9002 is inside the pSB1A2 vector and not as expected in the pSB1A3 vector.
- Sequencing results: The colonies 61 and 63 contains the right insert, but like ColE9lys in [http://partsregistry.org/Part:pSB1A2 pSB1A2] vector.
- PCR for amplification of Receiver-Colicin E9/E9_lys for recloning with the right prefix and suffix
25.0 µl Phusion Master Mix (Finnzymes, NEB) 2.5 µl T9002_LuxpR_Not_Eco_Xba_G_fw (Tm=80,96°C) 2.5 µl ColE9_plasmid_rv_A_SpeI(Tm=57,48°C)/ColE9_lysProt_rv_A_SpeI (Tm=64,29°C) 20.0 µl H2O 2.0 µl Miniprep (E9: Colony 61, E9lys: Colony 34) ------- 50.0 µl
program:
95 °C 30 sec 95 °C 10 sec | 54 °C 30 sec | 25 cycles 72 °C 1 min 30 sec | 72 °C 10 min 4 °C constant
- Gel of E9 and E9 lys PCR-amplification: 1% Agarose, 135 V, 30 min
- Gel-Results of E9-PCR-amplification:
- Gel-Results of E9lys-PCR-amplification:
- Plan for activity tests of Colicin-Receivers:
- Overnight measurement (Wednesday - Thursday) in Tecan plate reader with reference promotor cells (BBa_I20260) in combination with pSB1A3-Rec-ColE9/ColE9lys cells, supernatant and lysed supernatant.
- Pipetting scheme:
- Legend_1:
- Legend_2:
- Inocculation of Overnightcultures:
- 10 ml M9 + Kanamycin media + Reference promoter cells (BBa_I20260)
- 6 x 3 ml M9 Media + pSB1A3-Receiver without GFP
- 6 x 3 ml M9 Media + pSB1A3-Receiver-ColE9
- 6 x 3 ml M9 Media + pSB1A3-Receiver-ColE9lys
Receiver-Colicin E1
- PCR-Screen of pSB1A3-Receiver-Colicin E1 Cloning
25.0 µl Taq Master Mix (Fermentas) 2.5 µl ColE1_prot_fw_BamHI 2.5 µl ColE1_prot_rv_HindIII 20.0 µl H2O 5 colonies ------- 50.0 µl
program:
95 °C 3 min 95 °C 1 min | 54 °C 1 min | 30 cycles 72 °C 1 min | 72 °C 10 min 4 °C constant
- Gel of Col E1 PCR-Screen: 1% Agarose, 135 V, 30 min
- Gel-Results of E1-PCR-Screen:
- Expected Fragmentsize: ~1580 bp
- Colonies 6-10 and 36-40 show the right fragment size. -> New colony-PCR-Screen.
HisTag cloning of Colicins for purification
Sender cloning: pBAD-sender
- Sequencing results: No sequence -> Inocculation of new ONC
Sender cloning: constitutive promotor-sender
- Sequencing results: Both colonies contain the right fragment. So we inocculate new overnight cultures for Minipreps, Glycerolstocks and activity tests.
Wednesday 10/01/2008
pSB1A3-Receiver-Colicin cloning
- Gel of pSB1A3-Receiver-Col E1 PCR-Singlescreen: 1% Agarose, 135 V, 30 min
- Gel result:
- Expected Fragment: Receiver-ColE1-Insert ~ 2150 bp
- Comment:
- Possible explanation for the high amount of bands.
- Maybe annealing temperature was to low and primers annealed anywhere.
- -> Sequencing for colony 6, 38 & 39
- Digestion of PCR-product Colicin E9, E9lys with right prefix and sufix: 2h 40 min at 37 °C
38,5 µl DNA (PCR-amplification) 1 µl SpeI (NEB) 0,5 µl EcoRI (NEB) 5 µl NEBuffer EcoRI (NEB) 5 µl BSA 10x (NEB) ----- 50 µl
- Gel of pSB1A3-Receiver-Col E9/E9 lys digestion: 1% Agarose, 135 V, 30 min
- Gel result:
- Expacted Fragment:
- ~ 2150 bp
- Comment:
- Possible explanation for the high amount of bands.
- May be annealing temperature was to low and primers annealed anywhere
- Expacted Fragment:
- Digestion of : 2h 40 min at 37 °C
9 µl DNA (Miniprep of ColE9 colonies 61 and 63) 1 µl SpeI (NEB) 0,5 µl EcoRI (NEB) 5 µl NEBuffer EcoRI (NEB) 5 µl BSA 10x (NEB) 28,5 µl H2O ----- 50 µl
- Gelextraction (?)
HisTag cloning of Colicins for purification
Sender cloning: pBAD-sender
Sender cloning: constitutive-sender
Thursday 10/02/2008
pSB1A2-Receiver-Colicin cloning
- By sequencing we figured out, that the plasmid-backbone we used (and are still using) is not the pSB1A3 as it should be but the pSB1A2. Sequencing of the registery part BBa_T9002, where we cut out the plasmid-backbone we are using, affirmed that this part is not on the pSB1A3 plasmid as mentioned but on the pSB1A2. Because we have no working registry part on a pSB1A3 plasmid available in lab, we decided to continue with the pSB1A2 backbone and will also do our standardization with this plasmid.
Sequencing results of T9002/GFP_ColE1 cloning
- two of the sequenced colonies gave positive results: Colony 6 and Colony 39
- --> two positive colE1 cloning constructs: T9002/GFP_ColE1.6 and T9002/GFP_ColE1.39
Continuance of T9002/GFP_colE9 and _colE9lys cloning for standardization (with correct pre-/suffixes)
- gel (0,7 %, 135 V, 60 min) of the restriction digest done yesterday (EcoRI + PstI) with the samples for the backbone (61, 63, 63)
- pSB1A2 at ~2000 bp where cut out
- gel extraction with these bands (61, 63, 63) and PCR purification with the restriction digests done yesterday (EcoRI + PstI) with the samples ColE9 and ColE9lys. An additional made analytical gel of these two samples reminded us, that the colE9 fragment contains an EcoRI site inside the fragment. For this reason, we could not use the digested colE9 fragment and continued the cloning only with the colE9lys fragment.
- overnight ligation of pSB1A2 (9,1 ng/µl) and colE9lys (14,4 ng/µl)
2 µl T4 ligase buffer 10x (Fermentas) 2 µl T4 ligase (Fermentas) 13 µl ColE9lys 3 µl pSB1A2 ----- 20 µl
14 h 16°C --> 20 min 65°C
HisTag cloning of Colicins for purification
Colicin activity test
Friday 10/03/2008
pSB1A3-Receiver-Colicin cloning
HisTag cloning of Colicins for purification
Sender Cloning: pBAD - sender
Sender Cloning: constitutive promotor - sender
Saturday 10/04/2008
pSB1A3-Receiver-Colicin cloning
- Inocculation of Overnightcultures:
- 25 ml TB + Kanamycin media + Reference promoter cells (BBa_I20260)
- 25 ml TB + Ampicillin media + pSB1A3-Receiver without GFP
- 25 ml TB + Ampicillin media + pSB1A3-Receiver-ColE1
- Inocculation of Overnightcultures:
HisTag cloning of Colicins for purification
Sender Cloning: pBAD - sender
Sender Cloning: constitutive promotor - sender
Sunday10/05/2008
pSB1A3-Receiver-Colicin cloning
Colicin E9 lys
- PCR-Screen of Colonies (Transformation from Fr,10/03/2008) of pSB1A3-Receiver-Col E9 lys
25.0 µl Taq Master Mix (Fermentas) 2.5 µl T9002_LuxpR_Not_Eco_Xba_G_fw (Tm=80,96°C) 2.5 µl ColE9_lyProt_rv_A_SpeI (Tm=64,29°C) 20.0 µl H2O 1 colony ------- 50.0 µl
program:
95 °C 3 min 95 °C 1 min | 64 °C 1 min | 30 cycles 72 °C 1 min 30 sec | 72 °C 10 min 4 °C constant
- Inocculation of Overnightcultures:
- 12 ml TB + Kanamycin media + Reference promoter cells (BBa_I20260)
- 23 x 2 ml TB + Ampicillin media + pSB1A3-Receiver without GFP
- each 2 ml induced with the following AI-1 concentration:
- Inocculation of Overnightcultures:
0 nM 200 nM 60 nM 250 nM 70 nM 300 nM 80 nM 350 nM 90 nM 400 nM 100 nM 500 nM 110 nM 600 nM 120 nM 700 nM 130 nM 800 nM 140 nM 900 nM 150 nM 1 µM 160 nM
- 23 x 2 ml TB + Ampicillin media + pSB1A3-Receiver-ColE9 lys
- each 2 ml induced with the following AI-1 concentration:
- 23 x 2 ml TB + Ampicillin media + pSB1A3-Receiver-ColE9 lys
0 nM 200 nM 60 nM 250 nM 70 nM 300 nM 80 nM 350 nM 90 nM 400 nM 100 nM 500 nM 110 nM 600 nM 120 nM 700 nM 130 nM 800 nM 140 nM 900 nM 150 nM 1 µM 160 nM
Colicin E1
- Plan for activity tests of Colicin-Receivers:
- Overnight measurement (Sunday - Monday) in Tecan plate reader with reference promotor cells (BBa_I20260) in combination with pSB1A3-Rec-ColE1 cells.
- Plate scheme (click for detailed picture):