Team:Paris Bettencourt/Notebook/Eliminate Smell
From 2014.igem.org
Line 1,932: | Line 1,932: | ||
- | |||
- | |||
- | |||
- | |||
- | |||
</div> | </div> | ||
<div id="August"> | <div id="August"> | ||
<h4>August</h4> | <h4>August</h4> | ||
- | + | </br> | |
- | + | <h5 id="date">August 1st</h5> | |
- | + | <h6>Goal: Check <i>E coli</i> transformation with pPB.001 (miniprep + digestion)</h6> | |
+ | </br> | ||
+ | <h6>Procedure:</h6> | ||
+ | </br> | ||
+ | <div> | ||
+ | <strong> | ||
+ | Ligation | ||
+ | <br clear="none"/> | ||
+ | </strong> | ||
+ | </div> | ||
+ | <div> | ||
+ | <div> | ||
+ | We will use the digested agaA gBlock and PSB1C3 obtained on | ||
+ | <a | ||
+ | href="https://www.evernote.com/Home.action#b=596d48d5-2edd-48b4-b5e9-dc81ce1b9aab&st=p&n=db4278a7-4436-4a96-83c8-a23d6c57c65b" | ||
+ | target="_blank" | ||
+ | shape="rect" | ||
+ | > | ||
+ | June 26th | ||
+ | </a> | ||
+ | . | ||
+ | </div> | ||
+ | <div> | ||
+ | <div> | ||
+ | <br clear="none"/> | ||
+ | </div> | ||
+ | <div> | ||
+ | We will follow the <a href="http://www.thermoscientificbio.com/uploadedfiles/resources/el001-product-information.pdf" target="_blank" shape="rect">Thermo</a> | ||
+ | <strong> | ||
+ | <a href="http://www.thermoscientificbio.com/uploadedfiles/resources/el001-product-information.pdf" target="_blank" shape="rect"> | ||
+ | T4 DNA Ligase protocol | ||
+ | </a> | ||
+ | . | ||
+ | </strong> | ||
+ | I think last ligation did not work because it was too hot in the lab. This time, I will leave the ligation product for 30 min in the dark room | ||
+ | (20ºC). | ||
+ | </div> | ||
+ | <div> | ||
+ | <br clear="none"/> | ||
+ | </div> | ||
+ | <div> | ||
+ | <strong>E coli transformation</strong> | ||
+ | </div> | ||
+ | <div> | ||
+ | <div> | ||
+ | <div> | ||
+ | We will transform competent NEB turbo E coli made following the | ||
+ | <a | ||
+ | href="https://www.evernote.com/Home.action#b=60f448df-afb5-4a4d-9310-6dea624f7ab3&st=p&n=b4939a60-0f83-446a-a111-39d63eb7589c" | ||
+ | target="_blank" | ||
+ | shape="rect" | ||
+ | > | ||
+ | standard protocol | ||
+ | </a> | ||
+ | . In step 5, we did not incubate them for 4 hours, but only until the density was optimal (around 30-45 min). | ||
+ | </div> | ||
+ | <div> | ||
+ | <br clear="none"/> | ||
+ | </div> | ||
+ | <div> | ||
+ | We will use | ||
+ | <a | ||
+ | href="https://www.evernote.com/Home.action#b=596d48d5-2edd-48b4-b5e9-dc81ce1b9aab&st=p&n=c359be34-a042-4d01-a0bd-ebb7b81f3166" | ||
+ | target="_blank" | ||
+ | shape="rect" | ||
+ | > | ||
+ | pPB.001 | ||
+ | </a> | ||
+ | obtained today. | ||
+ | </div> | ||
+ | <div> | ||
+ | </div> | ||
+ | <div> | ||
+ | We will follow this | ||
+ | <a | ||
+ | href="https://www.evernote.com/Home.action?__fp=ZloDp4AdW-c3yWPvuidLz-TPR6I9Jhx8&username=iGEM-PB2014&login=true&_sourcePage=L90YhFqIo3HiMUD9T65RG_YvRLZ-1eYO3fqfqRu0fynRL_1nukNa4gH1t86pc1SP#b=60f448df-afb5-4a4d-9310-6dea624f7ab3&st=p&n=b48f12a9-a15f-45a2-a179-095516e07b3e" | ||
+ | target="_blank" | ||
+ | shape="rect" | ||
+ | > | ||
+ | Heat Shock protocol | ||
+ | </a> | ||
+ | . | ||
+ | <br clear="none"/> | ||
+ | </div> | ||
+ | <div> | ||
+ | <br clear="none"/> | ||
+ | </div> | ||
+ | <div> | ||
+ | <em> | ||
+ | <strong>Tip</strong> | ||
+ | (From Matt): At the last step when we recover the cells, plate most of the 200 uL and leave the rest recovering overnight. Then plate | ||
+ | them the next day. | ||
+ | <br clear="none"/> | ||
+ | </em> | ||
+ | </div> | ||
+ | </div> | ||
+ | <div> | ||
+ | </div> | ||
+ | <div> | ||
+ | We will plate them in LBA+Cm. | ||
+ | </div> | ||
+ | <div> | ||
+ | <br/> | ||
+ | </div> | ||
+ | </div> | ||
+ | </div> | ||
+ | </div> | ||
+ | </br> | ||
+ | <h6>Results:</h6> | ||
+ | </br> | ||
+ | <p>There are colonies on the plate. We will culture, miniprep and digest them.</p> | ||
+ | </br> | ||
+ | |||
+ | <h5 id="date">August 5th</h5> | ||
+ | <h6>Goal: Check <i>E coli</i> transformation with pPB.001 and <i>Corynebacterium</i> transformation with pSEVA + </h6> | ||
+ | </br> | ||
+ | <h6>Procedure:</h6> | ||
+ | </br> | ||
+ | <div> | ||
+ | <strong>MiniPrep</strong> | ||
+ | </div> | ||
+ | <div> | ||
+ | We will extract pPB.001 by making a MiniPrep of the 8 colonies + the new E coli transformation (July 20th) + Corynebacterium transformed with pSEVA | ||
+ | following the | ||
+ | <a | ||
+ | href="https://www.evernote.com/Home.action?__fp=ZloDp4AdW-c3yWPvuidLz-TPR6I9Jhx8&username=iGEM-PB2014&login=true&_sourcePage=L90YhFqIo3HiMUD9T65RG_YvRLZ-1eYO3fqfqRu0fynRL_1nukNa4gH1t86pc1SP#b=60f448df-afb5-4a4d-9310-6dea624f7ab3&st=p&n=7103fd59-762f-4792-bb1a-280f7b7af3a3" | ||
+ | target="_blank" | ||
+ | shape="rect" | ||
+ | > | ||
+ | standard protocol. | ||
+ | </a> | ||
+ | <br clear="none"/> | ||
+ | </div> | ||
+ | <div> | ||
+ | <br clear="none"/> | ||
+ | </div> | ||
+ | <div> | ||
+ | In the nanodrop, we saw that the yield for the 8 colonies was way too low (10 ug/mL) so we discarded them. We will continue with the E coli transformed on | ||
+ | July 20th (37 ug/mL) + Corynebacterium transformed with pSEVA (117 ug/mL). | ||
+ | <br clear="none"/> | ||
+ | </div> | ||
+ | <div> | ||
+ | <br clear="none"/> | ||
+ | </div> | ||
+ | <div> | ||
+ | <strong>Digest</strong> | ||
+ | <br clear="none"/> | ||
+ | </div> | ||
+ | <div> | ||
+ | <div> | ||
+ | Using the MiniPrep we got on July 17th, we will do a <strong>digestion analysis: </strong>(Jake's recipe) | ||
+ | <br clear="none"/> | ||
+ | </div> | ||
+ | <div> | ||
+ | - 5 uL plasmid (for the Ecoli we used 10 uL and added less water) | ||
+ | <br clear="none"/> | ||
+ | </div> | ||
+ | <div> | ||
+ | - 2 uL Fast Digest Green (has LD in it) | ||
+ | </div> | ||
+ | <div> | ||
+ | - 1 uL NotI or EcoRI+PstI. We used EcoRI+PstI | ||
+ | </div> | ||
+ | <div> | ||
+ | - 13uL of H2O | ||
+ | </div> | ||
+ | <div> | ||
+ | <br clear="none"/> | ||
+ | </div> | ||
+ | <div> | ||
+ | (Final volume of 20 uL) | ||
+ | </div> | ||
+ | <div> | ||
+ | <br clear="none"/> | ||
+ | </div> | ||
+ | <div> | ||
+ | We will incubate for 15-30 min at 37ºC. Then we will run 10 uL (our Fast Digest Green buffer already has Loadyng Dye in it, so no need to add | ||
+ | more) in an agarose 1% gel. | ||
+ | </div> | ||
+ | </div> | ||
+ | </br> | ||
+ | <h6>Results:</h6> | ||
+ | </br> | ||
+ | <img src='https://static.igem.org/mediawiki/2014/e/e3/Gel_6_08.JPG'> | ||
+ | </br> | ||
+ | <p> | ||
+ | - | ||
+ | </p> | ||
+ | <strong>1st raw:</strong> | ||
+ | <p> | ||
+ | Gene Ruler 100 kb + 1uL Loading Dye | ||
+ | </p> | ||
+ | <div> | ||
+ | - <strong>2nd raw</strong>: Corynebacterium striatum transformed with pSEVA | ||
+ | <br clear="none"/> | ||
+ | </div> | ||
+ | <div> | ||
+ | - <strong>3st raw: </strong>E coli transformed with pPB.001. However it weights 5000 kb. We go back to our protocol of August 1st and in fact what we have | ||
+ | here is <strong>E coli transformed with pSEVA.</strong> | ||
+ | </div> | ||
+ | <div> | ||
+ | <strong> | ||
+ | <br/> | ||
+ | </strong> | ||
+ | </div> | ||
+ | </br> | ||
+ | <h6>Conclusions: </h6> | ||
+ | </br> | ||
+ | <div> | ||
+ | Looking at this gel: | ||
+ | <br clear="none"/> | ||
+ | </div> | ||
+ | <div> | ||
+ | - We should not have used the 100 kb rule but the 1 kb | ||
+ | <br clear="none"/> | ||
+ | </div> | ||
+ | <div> | ||
+ | - Corynebacterium has not been transformed | ||
+ | <br clear="none"/> | ||
+ | </div> | ||
+ | <div> | ||
+ | - When we run at 100 V, the gel looks worse | ||
+ | </div> | ||
+ | </br> | ||
+ | <h6>Goal: <i>Corynebacterium striatum</i> transformation with pSEVA</h6> | ||
+ | </br> | ||
+ | <h6>Procedure:</h6> | ||
+ | </br> | ||
+ | <p> We will use the eppenforf protocol (https://docs.google.com/file/d/0By8yVXC0fFVRMTlDd3BxQXM2Y1U/edit) </p> | ||
+ | </br> | ||
+ | <h6>Results:</h6> | ||
+ | </br> | ||
+ | <p> There are a lot of colonies in the plate. We will strike them to pick single colonies and check the transformation. | ||
+ | </p> | ||
+ | </br> | ||
+ | |||
+ | |||
+ | <h5 id="date">August 1st</h5> | ||
+ | <h6>Goal: Check <i>E coli</i> transformation with pPB.001 (miniprep + digestion)</h6> | ||
+ | </br> | ||
+ | <h6>Procedure:</h6> | ||
+ | </br> | ||
+ | |||
+ | <h5 id="date">August 1st</h5> | ||
+ | <h6>Goal: Check <i>E coli</i> transformation with pPB.001 (miniprep + digestion)</h6> | ||
+ | </br> | ||
+ | <h6>Procedure:</h6> | ||
+ | </br> | ||
+ | |||
+ | <h5 id="date">August 1st</h5> | ||
+ | <h6>Goal: Check <i>E coli</i> transformation with pPB.001 (miniprep + digestion)</h6> | ||
+ | </br> | ||
+ | <h6>Procedure:</h6> | ||
+ | </br> | ||
<h5 id="date">Date 2</h5> | <h5 id="date">Date 2</h5> | ||
<p id="text">Text</p> | <p id="text">Text</p> |
Revision as of 12:24, 20 August 2014
Home | Team | Official Team Profile | Project | Parts | Modeling | Notebook | Safety | Attributions |
Eliminate Smell
Notebook
June
June 11th
Goal: Design plasmids that express agaA construct
Procedure:
Using Geneious, we first created the agaA construct:
- Promoter BBa_J23108 from the Anderson's promoter collection
- RBS from the RBS Calculator of Salis lab specific for E coli
- BioBrick Prefix + Scar from the iGEM Parts webpage
- agaA sequence codon optimized for E coli 12 (IDT online tool). We checked with Generious that there were no restriction sites for EcoRI, SpeI, ZbaI and PstI.
- Histidine tag: 6 Histidines in C-terminal were added
- Stop codon
- BioBrick scar + BioBrick suffix from the iGEM Parts webpage
To amplify this construct, we created two oligos:
Name | Sequence (5'->3') | Notes | Binding position |
oPB.001 | TATAGAATTCGCGGCCGCTTCTAGAGTGACAGCTAGCTCAGTCCTAGG | agaA forward for BioBrick vector | 1->23 |
oPB.002-BAD PRIMER | GAAGCATCATCACCATCACCACTGATACTAGTAGCGGCCGCTGCAGTTA | agaA REVERSE for BioBrick vector- NOT REVERSED | 1272->1296 |
oPB.005 | TTAACTGCAGCGGCCGCTACTAGTATCAGTGGTGATGGTGATGATGCTTC | agaA reverse for BioBrick vector | 1272->1296 |
* We noticed the 16/06/2014 that oPB.002 was NOT reversed and we designed oPB.005
Tip: When creating oligos: we add 4 nt at the beginning and the end composed by AT, to make sure the enzyme will bind properly.
We chose two backbones for the construct:
- pSB1C3 from the iGEM Parts to create a BioBrick.
- pEC-XC99E, a E coli-C glutamicum shuttle plasmid
We designed two plasmids:
1. pPB.001: Biobrick submission of agaA expression construct
1) Plasmid pSB1C3: High copy BioBrick assembly plasmid. Constitutive expression. To use in E coli
2) agaA construct
2.pPB.002:agaA expression construct. Shuttle vector E coli-C glutamicum
oPB.003 | 5'-CTGCAGATGCAAGCTTGGCTGTTTTGGCG-3' | PstI site + agaA forward for pEC-XC99E |
oPB.004 | 5'-TCTAGACACCACCCTGAATTGACTCTCTTC-3' | XbaI site + aga reverse for pEC-XC99E |
2) agaA construct
June 16th
Goal: Design new reverse oligo for Biobrick construction
Procedure:
We noticed oPB.002 was NOT reverse and therefore could not be used. We created oPB.005 instead:
oPB.005 | 5'-TTAACTGCAGCGGCCGCTACTAGTATCAGTGGTGATGGTGATGATGCTTC-3' | agaA reverse for BioBrick vector |
1272->1296 |
June 23rd
Goal: PCR agaA gBlock with oPB.001 and oPB.005
Procedure:
June 24th
Goal: PCR purification of the gBlock
Procedure:
Results
- Use fusion polymerase, as it is more reliable than the DreamTaq we used. DreamTaq is more for colony PCR.
- Final concentration of 200 uL, to have more DNA
-
When PCR does not work we look at:
- Annealing temperature: we start typically at 52ºC and can go down to 50ºC.
- DMSO concentration: typically 3%. Avoids missmatching
- Extension time, according to the manufacturer
Goal:PCR agaA gBlock with oPB.001 and oPB.005
Procedure:
June 25th
Goal: PCR purification of the gBlock
Procedure:
Results:
June 26th
Goal: Obtain pPB.001 (agaA gBlock digestion + ligation)
Procedure:
Goal: Transform E coli with pPB.001
Procedure:
Results:
No colonies grew after 12h. We will leave them in the incubator some more time and repeat the Heat Shock in the meanwhile
June 27th
Goal: E coli transformation with pPB.001
Procedure:
Results:
June 29th
Goal: Start culture to extract plasmid
Procedure:
June 30th
Goal: Miniprep to extract a plasmid (unfinished)
Procedure:
We started a culture on June 29th. We will make a mini prep following the Mini Prep protocol. The aim is to extract the plasmid PSB6A1 to cut it with EcoRI and PstI and see the efficiency of the cut.
Results:
July
July 1st
Goal: PCR purification of the gBlock
Procedure:
July 1st
** pEC-XC99E plasmids (Cm) from the Beilfield iGEM team arrived today. We stored them at 37ºC and Pierre-Luc will make a miniprep tomorrow **Goal: Obtain pPB.001
Procedure:
Goal: Transform E coli with pPB.001
Procedure:
Results:
July 2nd
Goal: Miniprep to extract pSEVA351 + Glycerol stock
Procedure:
July 11th
Goal: PCR of agaA gBlock with oPB.001 and oPB.005
Procedure:
We are going to PCR using the
Fusion Polymerasefor the agaA gBlock with the forward primer
oPB.001(the good one this time!) and the reverse primer
oPB.005.These two oligos include the BioBrick prefix and suffix. The aim is to add the prefix and suffix to the agaA sequence and amplify it.
July 12th and 13th
Goal: PCR purification of the gBlock
Procedure:
Results:
-
1st raw:Ready-to-use Gene Ruler (includes Loading Dye) 100 kb (5 uL)*
-
1st raw:Ready-to-use Gene Ruler (includes Loading Dye) 100 kb (5 uL)*
Goal:Obtain pPB.001
Procedure:
Goal: Transform E coli with pPB.001
Procedure:
Results:
On July 13th we can see what seems a colony in one of the plates. We will see tomorrow.
On July 14th we see colonies.
July 14th
Goal:Culture Corynebacterium glutamicum and Corynebacterium striatum
Procedure:
We will open the flask that arrived and culture Corynebacterium in Tryptophan Soy liquid medium at 37ºC overnight. After, we will plate them and culture single colonies to make competent cells and transform them. Corynebacterium glutamicum is sPB.006 and Corynebacterium striatum is sPB.007.
Goal:Obtain pPB.001 (Digest pSEVA351 + ligate with agaA gBlock)
Procedure:
July 16th
Goal: Colony PCR: Check pPB.001 transformation
Procedure:
Yesterday July 15th Juanma runned a colony PCR with oPB.001 and oPB.005 using the
Phusion Polymerase protocol. Today we will run a 1% agarose gel with the purified DNA following the
standard protocol.
Results:
There are no bands on the gel. This might happen with Colony PCR. To double-check, we will do a MiniPrep to extract pPB.001 and run a PCR with oPB.001 and oPB.005.Goal:Make competent Corynebacterium
Procedure:
July 17th
Goal:Check transformation of E coli with pPB.001 (MiniPrep + PCR + Gel)
Procedure:
Results:
Again, no bands.
Goal:Make competent Corynebacterium + Transform Corynebacterium with pSEVA
Procedure:
We will use the eppenforf protocol (https://docs.google.com/file/d/0By8yVXC0fFVRMTlDd3BxQXM2Y1U/edit)
Results:
There are a lot of colonies for sPB.007. In both plates. We will check that there is an insert. for that, we have started a culture (July 20th) and we will PCR it tomorrow.
July 18th
Goal:Check transformation of E coli with pPB.001
Procedure:
Results:
The gel is empty. We cannot even see the vector.
July 20th
Goal: Ligate pPB.001 + E coli transformation
Procedure:
Results:
There were no colonies 48h after.
August
August 1st
Goal: Check E coli transformation with pPB.001 (miniprep + digestion)
Procedure:
Results:
There are colonies on the plate. We will culture, miniprep and digest them.
August 5th
Goal: Check E coli transformation with pPB.001 and Corynebacterium transformation with pSEVA +
Procedure:
Results:
-
1st raw:Gene Ruler 100 kb + 1uL Loading Dye
Conclusions:
Goal: Corynebacterium striatum transformation with pSEVA
Procedure:
We will use the eppenforf protocol (https://docs.google.com/file/d/0By8yVXC0fFVRMTlDd3BxQXM2Y1U/edit)
Results:
There are a lot of colonies in the plate. We will strike them to pick single colonies and check the transformation.
August 1st
Goal: Check E coli transformation with pPB.001 (miniprep + digestion)
Procedure:
August 1st
Goal: Check E coli transformation with pPB.001 (miniprep + digestion)
Procedure:
August 1st
Goal: Check E coli transformation with pPB.001 (miniprep + digestion)
Procedure:
Date 2
Text
Text
September
Date 1
Text
Text
Date 2
Text
Text
October
Date 1
Text
Text
Date 2
Text
Text