Team:Cornell/notebook
From 2013.igem.org
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|head=August 8th | |head=August 8th | ||
|text= Cloning of the ''Cre'' gene and ''PpelA'' is going well, and we submitted ''PT7'' with ''GFP'' for sequencing, as well as pC13AS, pC13W, pAK13BB, and pAK13AC. | |text= Cloning of the ''Cre'' gene and ''PpelA'' is going well, and we submitted ''PT7'' with ''GFP'' for sequencing, as well as pC13AS, pC13W, pAK13BB, and pAK13AC. | ||
- | |tech= We ran a PCR of pA13BW. The ''CRE'' gene amplified correctly and the sample was column purified, yielding 54.8ng/uL (with GC enhancer) and 49.9ng/uL (with non GC enhancer). We ran out of supplies to miniprep, so we pelleted pA13AM and pC13BG cultures and began to not so patiently await the arrival of a new miniprep kit. Our PCR of pC13F to append BamHI and KpnI cut sites yesterday failed completely, so we digested pC13F with KpnI to linearize it with an internal cut site in ''mRFP'' for another PCR to be run tomorrow. Another gel was run of the pC13AY digests and all lanes were blank. There may have been an issue in quantification by nanodrop that was reading over 1000 ng/μL that mislead us into using low volumes of DNA for digestions. We decided to electroporate with the remaining pC13AY to miniprep and redo gel screening. On a brighter note, our restriction cocktail digestion of pA13BE with BamHI, KpnI and SacI showed a band at 500bp, which is the approximate length of | + | |
+ | |tech= We ran a PCR of pA13BW. The ''CRE'' gene amplified correctly and the sample was column purified, yielding 54.8ng/uL (with GC enhancer) and 49.9ng/uL (with non GC enhancer). We ran out of supplies to miniprep, so we pelleted pA13AM and pC13BG cultures and began to not so patiently await the arrival of a new miniprep kit. Our PCR of pC13F to append BamHI and KpnI cut sites yesterday failed completely, so we digested pC13F with KpnI to linearize it with an internal cut site in ''mRFP'' for another PCR to be run tomorrow. Another gel was run of the pC13AY digests and all lanes were blank. There may have been an issue in quantification by nanodrop that was reading over 1000 ng/μL that mislead us into using low volumes of DNA for digestions. We decided to electroporate with the remaining pC13AY to miniprep and redo gel screening. On a brighter note, our restriction cocktail digestion of pA13BE with BamHI, KpnI and SacI showed a band at 500bp, which is the approximate length of ''PpelA''. We also searched for a pAK13AN miniprep in the DNA storage box and for a glycerol stock of the same plasmid. We couldn’t find either. However, we did obtain a plate of colonies that had been transformed with pAK13AN. We picked colonies off this plate to miniprep and send off to sequencing. In addition, we column purified our inserts from the PCR run yesterday of pC13Z and pK13AL. We then quantified inserts after column purification. After, we digested backbones pAK13D and pC13P with SpeI and PstI and vector dephosphorylated both. The inserts, ''GFP'' in pC13Z and ''mRFP'' in pK13AL were then digested with XbaI and PstI. We ran a gel of backbones and inserts for confirmation of digests. Unfortunately, the results showed no bands from DNA. Perhaps there was not enough DNA from backbones for proper visualization. We also received materials for protoplasting today, and autoclaved or sterilized the supplies in whatever way we could. We made a filtration system such that all the filtering process during <i>G. lucidum</i> protoplasting will remain sterile. We made another stock of <i>G. lucidum</i> in CYM media, as well as 25 mL cultures of pC13F+pC13BK, pC13BL, pC13BJ, and pC13BM. We made glycerol stocks of pC13M and pC13K from glycerol stocks. We submitted pAK13AC for sequencing and ran a Q5 PCR for amplifying insert for constructing pC13I from pC13A. | ||
|author=Jonlin | |author=Jonlin | ||
}} | }} |
Revision as of 02:51, 28 September 2013
Notebook
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January
January 5th
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Applications for new Cornell iGEM members were due today-- we've got 57!
-Rafael
January 16th
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After an eternity of reading and a gigantic spreadsheet of evaluations, we're finally ready to start interviewing applicants-- 36 of them!
-Rafael
January 25th
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I'm really excited about having these new members on the team. There were many awesome interviews, but now we have to sit down and make hard decisions on who to take, as most of last year's members are graduating, so there's a limit to how many new members we can train. This is going to be a tough weekend.
-Rafael
January 27th
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After several hours of discussion, we decided on our 21 new members! Congratulations, Tim Abbott, Hannah Ajmani, Eric Appel, Ryan Ashley, Nupur Bhatt, Arun Chakravorty, Rebecca Chew, Sharlene Dong, Sara Gregg, Alex Han, Eric Holmes, Daniel Leach, Oat Luengvarinkul, Jeffrey Ly, Ritvik Sarkar, Mac Sennett, Prashant Sharma, Olya Spassibojko, Yoshiko Toyoda, and Kyle Wheeler!
-Rafael
February
February 1st
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We had our first full team meeting today with all the new members, introducing them to the iGEM competition, and did an icebreaker we call speed-taboodunit! For the next week, they have the assignment of analyzing a previous iGEM project (in groups), and explaining what the project was trying to accomplish, whether synthetic biology was a good approach for this, and reasons for their success or lack thereof.
-Rafael
February 7th
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Our first social event tonight went well! Hopefully with a few more of these we'll have some great team comradery and feel more comfortable around each other.
-Rafael
February 9th
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At our second team meeting we went over the past project analyses, as well as some biology review-- mostly molecular cloning. For the next week, we've assigned more past projects for them to outline in more detail.
-Rafael
February 16th
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Today we went over literature review, went over the past project outlines, and gave a two-week problem-oriented brainstorming and project outline assignment. Now that each member has looked at several past projects and analyzed them, we're moving into brainstorming for this year's project and practicing the development of project pitches.
-Rafael
February 21th
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We just started working on the wiki! Our first assignment: figuring out how wiki templates work. With templates the website would become much easier to edit, but for some reason HTML and wiki text don't seem to work very well together...
-Nupur
February 23th
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For the second week of this assignment, we compiled the brainstormed ideas and had members pick which ones they wanted to explore further. We also had a movie night planned, but it fell through :(
-Rafael
February 28th
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Finally got templates to work! The trick was ending HTML right before wiki text, and starting HTML again right afterwards. Not very elegant, but it works.
-Nupur
March
March 1st
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We want to revamp the notebook page with a filter system that lets you sort by subteam. We set up the basic layout of the page, but writing the javascript is going to be another story.
-Nupur
March 2nd
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Groups over the previous week investigated phage therapy, piezoelectric bacteria, "sticky paper", logic gates / bistable switches, phytases, mycelia, and pressure-adaptive materials. We're keeping the results from those, but doing a second round of brainstorming over the next few weeks-- the idea is to allow the exploration of any ideas that arose while researching the previous round of ideas.
-Rafael
March 5th
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We just finished the javascript for filtering. Rafael also made cool subteam icons for the filter buttons.
-Nupur
March 6th
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I made a template for notebook entries and added styling to each entry.
-Nupur
March 9th
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We compiled our second round of ideas, including topics like methanotrophs, a CRISPR knockout system, and suppressor tRNA inducible expression systems. We also took our first team picture, and probably the only one that will have all of last year's and this year's members together!
-Rafael
March 29rd
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Spring break knocked out a couple of meetings, but it looks like some research was accomplished nonetheless! The phytase project idea is looking pretty promising-- it incorporates a lot of different disciplines, with stuff for our mechanical and electrical engineers to do, as well as modeling.
-Rafael
April
April 6th
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We've narrowed it down to four project ideas: smokestack reactors (capturing pollutants with bioreactors), incorporation of phytases into anaerobic digesters, mycelial materials, and using bacteria to address issues with artificial implantable kidneys.
-Rafael
April 10th
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We had a call today with Ecovative Design, a company that uses mushrooms to make a biodegradable styrofoam analogue-- our mycelial materials project idea would involve working with them to improve their product. It seems like our interests are aligned and that we should be able to work with them. Exciting!
-Rafael
April 13th
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This meeting was dedicated to project pitches from each of the four ideas, followed by voting on which project we should pursue. Some of our graduate advisors also attended to provide a more seasoned perspective on the viability of each project. After some deliberation and spreadsheet magic, we decided on mycelial materials!
-Rafael
April 20th
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Today we worked on team structure for the summer; Swati will be the overall team leader, with me and Mark coordinating wetlab, Olya taking meeting minutes, Mac running drylab, and Hannah will be managing human practices. Later on in the summer, we will also develop task groups. For the next week, we've also split into groups to research various aspects of the mycelial materials project.
-Rafael
April 26th
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We've compiled initial research on carotenoid pigments, transformation protocols, DNA that may be useful for a basidiomycete toolkit, and a few other topics. Over the next week we'll meet with several professors on campus who work with fungi to see what resources and advice they can provide.
-Rafael
May
May 4th
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We met with Professor Gillian Turgeon, who does fungal transformation with Cochliobolus heterostrophus, an ascomycotic corn pathogen. We can get a few of the genes we've been looking for from her, yay! We also met with Professor Teresa Pawlowska, who directed us towards some other fungi and resources for fungi, as well as provided some background on fungal biology. As for the rest of the semester, we're letting everyone off the hook-- we don't want anyone to fail their exams because of iGEM!
-Rafael
Week 1
(06/17 - 06/23)
June 17th
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The drylab team met briefly on June 17 to begin discussing some ideas. We went over some of the growing methods for Ganoderma lucidum, brainstormed some non-packaging related ideas for a fungal biomaterial, and discussed how we could test some of the physical characteristics of the final product. We thought it might be a good idea to test the thermal conductivity if it were to be used as a drinking cup or something. We also determined that people probably do not want to drink out of a fungus cup.
-Mac
June 18th
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We started bootcamp today, doing our first transformations with kit plate biobricks.
-Rafael
June 19th
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The second day of bootcamp had more activity-- we PCR-amplified a variety of parts to biobrick them and get ready for making composite parts later.
-Rafael
June 20th
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I finally started moving pages to the 2013 wiki! It's looking very empty right now, but Rafael made a gif of our logo with his mycodraw program to use as a homepage placeholder. We also decided to add a technical details section to each of our notebook entries so that we can separate the jargon from daily summaries.
-Nupur
June 20th
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On our third day of bootcamp, we taught new members how to run gels, do minipreps, and run digests, continuing our preparation of biobrick parts from the previous two days.
-Rafael
June 21st
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The javascript for toggling technical details took a bit longer than expected, but we finished it up today.
-Nupur
June 21st
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Continuing with bootcamp, we column-purified the digests of PCR products and gel-purified the digested pSB1C3 backbone, dephosphorylated, and ligated, resulting in our first batch of biobricks or pre-biobrick parts.
-Rafael
June 22nd
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I added a flyout to notebook entries authors with a picture, short description, and link to their bio on the team page.
-Nupur
June 22nd
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Our penultimate day of bootcamp was a light one-- we only transformed cells with the constructs we'd made over the past four days.
-Rafael
June 23rd
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We concluded bootcamp with colony PCRs to test whether each of the constructs was present. Unfortunately, the gels had no bands, so we grew overnight cultures and will screen the minipreps instead.
-Rafael
Week 2
(06/24 - 06/30)
June 24th
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The drylab team met to update each other on some of the preliminary research. The main focus of this meeting was the development of a growing protocol. Sara found a professor that we could contact in the material science department for help regarding the testing of material properties. Rebecca and Manny looked into what different aspects of the fungi we could model, such as growth, decay, etc. Ritvik brainstormed some more ideas regarding the potential uses of this material, and came up with the idea of using it as insulation.
-Mac
June 24th
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I started working on a hypertexting script that will automatically recognize words on a page and add a flyout with a description. We can use this to recognize names for the author flyouts I implemented yesterday, as well as other keywords such as plasmid names and protocols.
-Nupur
June 24th
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We miniprepped our three constructs. Then we went back to sleep.
-Rafael
June 25th
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I fixed a problem with the hypertext script not looping, but broke something else that causes everything to crash. I'm going to sleep. I'll figure it out tomorrow.
-Nupur
June 25th
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We did another PCR from the miniprepped plasmids to confirm the right sizes of inserts, then sent them in for sequencing.
-Rafael
June 26th
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The script is now working on all browsers except for Internet Explorer.
-Nupur
June 27th
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We started cloning crt genes downsteam of the T7 promoter. Because the T7 promoter is too small to extract as a fragment, we're placing crt genes downstream, then transferring the promoter+gene fragments back to pSB1C3. Today we digested crtY and the T7 promoter plasmid, but the digestion of crtY failed.
-Rafael
June 28th
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We redid the digestion of crtY and the T7 promoter plasmid from yesterday, apparently successfully this time. We also started liquid cultures of pBARGPE1, a plasmid we got from the Fungal Genetics Stock Center.
-Rafael
June 29th
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Crossing our fingers, we gel extracted and ligated the ostensibly successful digests of crtY and the T7 promoter plasmid, and then transformed. We also digested crtI and crtB, other carotenoid genes that we will also be putting under the T7 promoter, and miniprepped the pBARGPE1 that had been grown up last night.
-Rafael
June 30th
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Unfortunately, there were no colonies on the transformation plate for T7+crtY, so we redid the digestions for those. We also digested TtrpC and nptII for the eventual cloning of a PtrpC+nptII+TtrpC construct (we have to put the parts together in reverse because nptII contains a PstI site, which we will be trying to remove as well). Gel extractions of digested crtI and crtB were also empty (insignificant concentrations), so these digestions were also redone, and all were run on a gel, which looked mostly okay.
-Rafael
Week 3
(07/01 - 07/07)
July 1st
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We finished the hypertexting script and fixed some miscellaneous problems. I think we can call this a wrap. The notebook page is officially done!
-Nupur
July 1st
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Two of our team members participated in SILS Skills Night on June 20th.
-Hannah
July 1st
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Yesterday's digestions were gel extracted, ligated, and transformed. Hopefully it worked this time!
-Rafael
July 2nd
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There were no transformants, again :(. On the other hand, we received our tube of Ganoderma lucidum from Dr. David Hibbett today! Once more with feeling, we redid the four digestion-ligations for crtI, crtB, crtY, and nptII. We also amplified hph, the hygromycin resistance gene, from one of the plasmids we got from Dr. Turgeon's lab, as well as pSB1C3 backbone, and we will use Gibson assembly to put them together (as hph has both EcoRI and PstI sites)-- the gels looked good for both of these. Finally, we submitted pAb13T (pBARGPE1) for sequencing to determine the sequences of the Aspergillus nidulans gpdA promoter and the bar gene, which confers phosphonothricin resistance.
-Rafael
July 3rd
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All transformations failed yet again, and were repeated once more. Four tears shed for the lost. hph was Gibson-assembled, and we ran a Q5 PCR of the bar gene, under the assumption it matches other published bar sequences, and the product digested and ligated with pSB1C3. We also ran site-directed mutagenesis on nptII (pCg13R) to remove its internal PstI site.
-Rafael
July 5th
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Rafael added badges to the headers of all of our wikis, and implemented a badge flyout that links them all together.
-Nupur
Week 4
(07/08 - 07/14)
July 10th
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Five team members visited a STEM camp in Canandaigua, NY. We spent two hours making DNA necklaces with kids ranging from ages 7-14.
-Hannah
July 11th
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After several brainstorming sessions, we decided to build an intelligent incubation chamber to facilitate the growth of our mushrooms in a controlled environment. We hope to achieve this by using a temperature and humidity sensor with a feedback control loop.
-Rebecca
July 11th
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Digest screens were run to see if cloning had been successful,, and Gibson cloning was continued.
-Rafael
July 12th
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Cloning with nptII BB and PtrpC was continued, as well as cloning with the Gibson Assembly method.
-Rafael
July 13th
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Today we worked with fungi! We applied different amounts of antibiotic to G. lucidum, to test the sensitivity of our strain of fungi. In addition, cloning of pCg13Y was nearly completed.
-Rafael
July 14th
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Our cloning of pCg13Y was found to be unsuccessful. pC13z and pAK13AD were prepped for cloning.
-Rafael
July 14th
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This week, drylab split up so members could focus on their strengths. Rebecca and Sara began designing our feedback controller, with some much appreciated advice from the previous drylab team leader, Dan. Ritvik, Manny, and Mac began coming up with design considerations for the incubation chamber. We were most concerned with size; too small and it wouldn't be useful, too big and it would be difficult to control any variables. We eventually decided that a 1x1x2' chamber would probably be a good compromise. Rebecca, Sara, Ritvik, and Mac also attended machine shop training this week. In order to complete our training, we each had to construct a small aluminum lamp using a milling machine and a lathe. Fortunately, everyone emerged from the training session one lamp richer, and with a full set of fingers on each hand.
-Mac
Week 5
(07/15 - 07/21)
July 15th
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Rebecca looked into the components of the temperature feedback control; namely, the temperature sensor, the microcontroller and the heating element. Put in an order for the temperature sensor, microcontroller (an Arduino Fio) and Xbee ports for wireless communications.
-Rebecca
July 15th
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Gibson hph was submitted for sequencing, and cloning of crtY and crtB was continued.
-Rafael
July 16th
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One iGEM member spoke at a panel for pre-freshmen biology students interested in pursuing research positions in college (PSP).
-Hannah
July 16th
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-Rafael
July 18th
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The restriction cocktail method of cloning worked! Cloning of pC13AH (T7 + crtY) was shown to work using this method. We are also continuing our cloning of the crtI and crtB pathways.
-Danielle
July 21st
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This week, the fabrication group focused on what materials to construct our chamber from. At first we considered a single wall design, but this was eventually scrapped, as we were unable to find any material that would provide sufficient insulation at a reasonable thickness (and cost). After putting our heads together, we decided on a double wall with an insulating layer in between them. Mac began drawing up the chamber in Solidworks.
-Mac
Week 6
(07/22 - 07/28)
July 23rd
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The parts have arrived and Rebecca configured them. Met up with Paras who was on last year's team to get a detailed explanation of how their project had worked as well.
-Rebecca
July 23rd
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Five team members gave a two hour presentation including a lab tour to a group of 25 high school biology teachers (CIBT)
-Hannah
July 28th
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This week, the fabrication group finalized the incubator design and ordered the construction materials! We decided to construct the outer and inner layers out of HDPE plastic in the rather lab appropriate color of white. For our insulation, we decided to use high density polystyrene. After comparing the K-factors for various types of insulation, we determined that this material gave us the most bang for our buck, so to speak.
-Mac
Week 7
(07/29 - 08/04)
July 31st
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Sara and Rebecca met up with our advisor Dr Bruce Land and he provided lots of helpful advice with regard to the design considerations (where the heater should be in our incubation chamber, convection currents, type of heating plate to use). He also suggested that we use a proportional-integral-derivative controller (PID controller) to regulate the heating.
-Rebecca
August 1st
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Team visited Ecovative Design's facilities in Troy, NY. Co-founder and Chief Scientist gave us a tour and tips on working with fungi.
-Hannah
August 2nd
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Video conference with Tuft's iGEM team to discuss collaboration on their human practices approach.
-Hannah
August 4th
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Mac went to visit Ecovative Design with Swati, Rafael, Alex, and Hannah. We were able to meet with Gavin McIntyre, one of the founders of the company, who was kind enough to give us a tour of their facilities. He also gave our wetlab members some pointers for our own project. In other news, we are still waiting for our materials to arrive.
-Mac
Week 8
(08/05 - 08/11)
August 5th
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Our previous construction of pC13AY failed. We submitted pC13BF and pC13BG for sequencing. We ran a colony PCR for pAK13AB, pAK13AC and pAK13BB. A few pAK13AC and pAK13BB colonies were successful.
-Rafael
August 5th
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Eric Holmes and Arun Chakravorty presented for a group of scientific researchers (SILS)
-Hannah
August 6th
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After the previous failure of pC13AY construction, we recreated it with successfully screened parts. We redid a colony PCR for pAK13AB, which failed again. We will need to reconstruct pAK13AB.
-Rafael
August 7th
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We received sequencing back for pC13BF and pC13BG and only the later was successful, so we restarted construction for pC13BF. We also ran a PCR to amplify GFP and mRFP inserts out of their respective plasmids.
-Rafael
August 7th
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We helped Ciencias-UNAM get set to transfer their HTML website to the wiki. Hopefully we'll get up a tutorial for what to look out for on here soon!
-Nupur
August 7th
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The sensor has been connected!
-Rebecca
August 8th
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Cloning of the Cre gene and PpelA is going well, and we submitted PT7 with GFP for sequencing, as well as pC13AS, pC13W, pAK13BB, and pAK13AC.
-Jonlin
August 9th
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Cloning of the Cre gene is going well, and we may have found a useful limonene synthase gene! We are continuing the previously problematic cloning of GFP with T7 promoter-hopefully it works this time! Sequencing of pAK13AC unfortunately failed.
-Rafael
August 10th
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We began constructing pC13BH with Gibson assembly, as well as making our first attempt at protoplasting G. lucidum. Electroporations of fluorescence constructs was also done today.
-Rafael
August 10th
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Five team members presented at the Ithaca Sustainability Center for citizens of Tompkins County.
-Hannah
August 11th
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We are starting cloning of limonene synthase and continuing cloning of the Cre gene.
Cloning of fluorescent constructs is going well.
-Rafael
Week 9
(08/12 - 08/18)
August 12th
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Cloning of PtrpC and GFP appears to be going well. Our initial attempt at protoplasting and transforming G. lucidum does not appear to have been successful.
-Rafael
August 13th
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We continued cloning of T7 with mRFP, PtrpC with GFP, and PtrpC with mRFP.
-Rafael
August 14th
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Homologous regions were successfully appended to PgpdA, and cloning of the Cre recombinase appeared to be successful. We made another attempt at protoplasting, which was again unsuccessful. For characterization, we began cloning RBS into our constructs containing T7, since the promoter need a ribosomal binding site to express in E. coli.
-Rafael
August 15th
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We ran a Gibson assembly to create pC13BH and transformed the construct.
-Rafael
August 15th
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Rebecca looked more into the details of the pulse-width modulation and PID controller so that the heater can be turned on for certain periods of time for more even heating.
-Rebecca
August 16th
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The miniprep kit finally arrived so we were able to continue progress on our pC13BG, pC13AY and pC13AW constructs. To aid in our protoplasting, we decided to seek help from the Turgeon Lab.
-Rafael
August 17th
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PtrpC with GFP will be sent in for sequencing. We ran PCR of pAK13AC, pAK13BB, pAK13A (for both rbs + crtE and crtE). pAK13AC and pAK13BB worked but pAK13A both failed. We ran PCR of pAK13AC, pAK13BB, pAK13A (for both rbs + crtE and crtE). pAK13AC and pAK13BB worked but both pAK13A failed.
-Rafael
August 18th
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Cloning of T7 promoter with mRFP has been problematic - but we will keep trying. Minipreps of large stocks of pAK13AB, pAK13AC and pAK13BB yielded better results!
-Rafael
August 18
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Today, the dastardly trio of Arun, Hannah, and Eric were chosen to present at the regional iGEM competition!
-Swati
Week 10
(08/19 - 08/25)
August 19th
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We are beginning construction of T7 polymerase with an Anderson promoter, and prepared PtrpC with mRFP and PtrpC with GFP for sequencing. Gel electrophoresis showed that pAK13AB, pAK13AC, pAK13BB and pC13A (both rbs + crtE and crtE) are good!
-Rafael
August 20th
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Cloning of PtrpC with T7 polymerase continues to be problematic. We are continuing cloning of PpelA, last time’s T7 polymerase with an Anderson promoter, and putting a strong RBS with GFP and mRFP. We digested pC13I, pC13J, pC13N, pC13L, pAK13AB, pAK13AC, pC13F and pAK13D in preparation for ligating new products for the carotenoid pathways.
-Rafael
August 21st
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Weird happenings in lab: what we thought was PtrpC with GFP turns out to be PtrpC with mRFP! Good news: PgpdA and pC13F with homologous regions for Gibson are good! We tested the transformation efficiency of our new T7-ready bacteria, BL21-A1 as well. We ligated and electroporated pC13AF, pC13AG, pAK13CR, pAK13CS from other digestions, and plated them overnight.
-Rafael
August 22nd
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We did a bunch of ligations and are continuing cloning of PgpdA, Anderson promoter with T7 Polymerase, GFP, geneticin resistance, and a strong RBS. We ligated pC13I and pC13AF.
-Rafael
August 23rd
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Cloning of RBS + GFP, RBS + mRFP, PT7 + GFP + PtrpC + geneticin resistance, PtrpC + mRFP, and PtrpC + GFP appear to be going well.
-Rafael
August 24th
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Running into some problems with PgpdA cloning. PCR confirmed that pC13AG and pAK13CR worked! We picked more colonies of pAK13CS for screening.
-Rafael
August 25th
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The extra colonies of pAK13CS from yesterday failed. We will have to restart pAK13CS. We are also recreating inserts from pAK13AB to make pC13AF.
-Rafael
August 25th
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Christine's back! She started looking at the components for a humidity sensor and placed an order for a mistmaker which would be able to control humidity levels. In the meantime, Sara studied the details of the heating circuit which utilizes a transistor to amplify signals and switches it such that the resistor could be used as the heating element.
-Rebecca
Week 11
(08/26 - 09/01)
August 26th
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Our materials are here and everyone in the fabrication group has returned to Ithaca! This week, Manny and Mac focused their efforts on getting the plastic cut to the proper dimensions. Unfortunately, this proved more to be more difficult than anyone could have imagined. After transporting a rather hefty 48"x48" piece of plastic across campus from Weill Hall to the Emerson Lab machine shop, we were told that we would have to take it elsewhere to have it cut (plastic is bad for blades). Disappointed, but never defeated, we decided to try our luck with another machine shop. Also, carrying plastic around campus isn't much fun, so we held it on the roof of a car instead (not recommended). Fortunately, no traffic violations were received, and the Clark hall machine shop was more than happy to cut up our plastic for us.
-Mac
September 1st
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Lydia's back too! Discussed what we have been doing for the past few weeks and immediate goals.
-Rebecca
Week 12
(09/02 - 09/08)
September 2nd
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Miniprepped PtrpC + T7 polymerase, the PpelA, the Anderson promoter, and the Anderson promoter + T7 polymerase. We are preparing to send pC13BN to sequencing. A Vent PCR was done on pC13CB to verify successful cloning. We began a new transformation attempt, now with fresh solutions to work with. However, this also seemed unsuccessful. We also ran a Vent PCR with the addition of MgSO4 for pC13AF, pC13CV, pC13I and pC13L minipreps--they all failed. Another Vent PCR was run to check inserts in pC13BC, pC13BV, and pC13CE, but resulted in no bands.
-Rafael
September 3rd
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Digest screen of PtrpC + T7 polymerase and the Anderson promoter + T7 polymerase showed good expected banding pattern. The pC13CK construct is correct. A gel of pC13CB PCR products was run and was inconclusive. We repeated the PCR from yesterday for pC13AF, pC13CV, pC13I and pC13L but using the Q5 polymerase. Except for pC13AF from colony #2, all else failed. We attempted to protoplast again, this time with emphasis on determining what our issue is in hopes that we can fix it.
-Rafael
September 3rd
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Christine, Rebecca and Sara met up with Dr. Land again and we learnt more about setting up PID controls. Went to the lab next where Christine and Sara set up the heating element circuit, Rebecca soldered pins onto the arduino and Lydia drew up the circuit design.
-Rebecca
September 4th
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Transformed the PpelA and Anderson promoter + T7 polymerase into pSB1C3 as well as digest and ligate other promoters. The pC13BN construct was incorrect, so we will have to redo all of the Gibson transformations for the lox constructs. On a brighter note, sequence confirmation of pA13DB and pA13DC came back today!
-Rafael
September 5th
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Today in lab we gel screened a bunch of old minipreps to see if they were still viable and made cultures of the Anderson promoter + T7 polymerase in pSB1C3. We digested the lox site constructs in order to ligate with pC13BN. In a meeting with Professor Turgeon we decided that we would leave G. lucidum behind for now and work with Cochliobolus, which her lab transforms regularly and has more expertise with.
-Rafael
September 6th
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Most of old minipreps were no good and the PpelA transformation failed. The Anderson promoter+T7 polymerase gel results looked good and were submitted for sequencing. Oh no, the PCR of pC13CV, pC13I and pC13L failed again--we suspect something is wrong with our reagents. Use the new dNTPs from now on!
-Rafael
September 6th
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We met at Flora Rose house to decide on an outline of the presentation and also decide a timeline.We met for the first time to discuss a preliminary outline for the presentation. Hannah will be handling all the human practices elements, Eric will be explaining relevant biological background and strategies, and Arun will be presenting all of our characterization data (hopefully!). We made a detailed structure which will include an introduction about styrofoam pollution and ecovative. Then we will move on to a brief overview of our wetlab work. It was clear that the wetlab portion should be divided into 3 main components. The components would be fungal toolkit, carotenoid pathway, and antifungals. Finally, we will end with results, human practices, and acknowledgments to all our beautiful advisors and sponsors.
-Arun
September 7th
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Digested and ligated the Anderson promoter+T7 polymerase into pSB1C3 and pSB2K3 as well as start cultures from glycerol stocks and transformation and gel screened the Anderson promoter + T7 polymerase. We transformed afp1 and Cht1_2. For fluorescence, we electroporated pC13AU, pC13AT, pAK13CY, and pC13AQ to obtain more plasmid DNA. We redid a Q5 PCR for pC13CV, pC13I, pC13AF and pC13L with the new dNTPs--PCR products were all bad except for pC13L.
-Rafael
September 7th
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Five team members went to the Ithaca Sciencenter and taught a group of 18 children and 17 parents about the power of DNA.
-Hannah
September 7th
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After researching we found out that the powerpoint presentation should be centered around design and images rather than content. We decided to meet tomorrow to discuss possible design layouts and schemes. We looked at many examples of presentations and considering our project, we think we should have a very modern and green theme. Arun will explore with this later on.
-Arun
September 8th
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We met super early in the morning (10 am!) for brunch and some delicious cake. We also got work done and made an entire storyboard for the presentation. Our golden (or perhaps orange) idea of the day was a growing carrot representation for the carotenoid pathway.
-Eric, Arun
September 8th
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We miniprepped PpelA, PtrpC, and TtrpC. We got transformants with afp1 and Cht1_2 and for all of the lox site constructs. However, only the pC13CO looked good based on a gel screen. We will sequence the lox construct. We also miniprepped pC13CV, pC13I, pC13AH and pC13AG.
-Rafael
Week 13
(09/09 - 09/15)
September 9th
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PpelA preps were quantified and the G. lucidum promoter was amplified and gel screened. We are preparing our pC13CO, pC13BA, and pC13CL cultures to sequence. The correct insert is in pC13BA based on a gel screen. We digested pC13L and dephosphorylated the pSB1C3 digest from yesterday. We prepared an overnight culture of Cochliobolus and necessary solutions for a protoplasting attempt tomorrow.
-Rafael
September 9th
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We met with our design master Oat to discuss design considerations for the presentation. Oat will be making many designs, including a kill switch diagram, homologous recombination figure, our carotenoid image, a toolkit representation, and of course lots of mushrooms.
-Eric
September 10th
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Anderson promoter + T7 polymerase, in pSB1C3 and BBa_J61002 were miniprepped, glycerol stocked, and prepared for biobrick submission. For fluorescent constructs, a Q5 PCR of pAK13AO colonies 1,2,3 and pC13CB 1,3,4 all had correct lengths. The pC13BN construct was incorrect. An overnight culture was prepared for rbs + crtI (from pC13L) at 4C. We made our first attempt at protoplasting and transforming Cochliobolus with the help of the Turgeon Lab. We set up cultures of pC13X and pC13AV in preparation for part submission. We started the growth experiment for testing G. lucidum’s antibiotic sensitivity.
-Rafael
September 10th
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Oat, Eric, Arun, and Hannah sat down to make figures for the presentation. Arun also chose his first color scheme: a baby blue flanked by a serene green. We got many designs done including the carotenoids, homologous regions, kill-switch, and the construct pieces.
-Arun, Eric
September 11th
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Redid transformations of PpelA and the Anderson promoter+T7 polymerase. We sent the Anderson promoter, pC13CO, pC13CL, and pC13BA to sequencing. Gel electroporation for pC13I showed that it was good, but nothing for pC13J. We were surprised to know that rbs + crtE (pC13J) already exists in iGEM! We continued with protoplasting Cochliobolus in the Turgeon Lab, and we ran a Gibson assembly of homology regions in G. lucidum.
-Rafael
September 12th
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Ran Gibson assembly for the G. lucidum promoter into pSB1C3. pC13BA is now a BioBrick! We also began cloning a construct with both fluorescence and resistance genes by ligating pC13BR and pC13AT. We successfully electroporated E.Coli with pC13J! We digested pAK13CR, and then we ligated rbs + crtB into pSB1C3, crtE into pSB1C3. After finding our Gibson assembly from last night left in the water bath, we attempted it again as well as preparing some of our Biobricks for submission. We checked pC13BC, pC13BV, and pC13CE and prepared the successful constructs for sequencing.
-Rafael
September 13th
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Gibson assembly for the G. lucidum promoter yielded no colonies. Numerous ligations and electroporations were done for fluorescent constructs. We are starting the afp1 Aspergillus growth assay. We did electroporation for pC13I, pC13CV and pAK13CS but pAK13CS arced. We prepared numerous Biobricks for submission to iGEM HQ.
-Rafael
September 13th
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Managed to get the arduino to control the heating circuit!
-Rebecca
September 14th
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The Anderson promoter + T7 polymerase were electroporated, but both ligations arced, so transformations are very likely to not succeed. We are unsuccessful with pC13CL and pC13BN. We miniprepped pC13J cultures.
-Rafael
September 15th
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We once again got brunch and ate some school famous chocolate peanut butter cake. We agreed that Becker brunch has the best brunch. Then we sat down all day and put together the majority of the presentation including graphics and content. In addition, Hannah and Eric started writing the script for their part of the presentation. Arun will start writing his script as soon as characterization data starts coming in.
-Arun, Eric
September 15th
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We are continuing cloning of Lambda Holin, chitinase, and the lox sites and adding homologous regions to the lox sites for Gibson. We started the afp1 assay with Aspergillus. We did a digestion for pC13AF and pC13P, and redid the ligation for insert in pC13L and vector pSB1AK8.
-Rafael
Week 14
(09/16 - 09/22)
September 16th
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We started taking measurements of G. lucidum growth on CYM plates by tracing the central mass of fungus--the differences between the plates are really interesting! Sequencing for pC13AY was successful so we prepared more culture. We did gel electrophoresis for inserts in pC13CV, pC13I, pC13J and pC13BG, but only pC13J colonies are positive. We then did digestions for the following vectors: pC13BG, pC13AG, and pC13KI. We still do not have any growth on antifungal plates.
-Rafael
September 17th
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We tried transformation of Cochliobolus again. We ran a PCR to append cut sites to pC13F but no band was shown on a gel. We redid the Gibson of Cht1_2 and pSB1C3. When we ran a PCR fo pC13AI, weird band patterning was observed. We purified the vectors we digested yesterday: pC13BG, pC13AG and pC13K. In addition, we purified inserts of pC13AF and pC13P. We continued recording measurements of G. lucidum’s growth in the presence of antibiotics.
-Rafael
September 17th
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We met for our first run through of our presentation. The script needs some work, but it’s coming along nicely. It seems that the only part lacking in the presentation is the characterization data and charts. They coming soon!
-Arun, Eric
September 18th
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We are getting more data with regards to fungal growth on resistance plates! We ran the pC13CO digests on a gel and they looked good. We ran a PCR of pC13AI to amplify lox sites for Gibson.
-Rafael
September 19th
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Something may be wrong with the pC13AI plasmid based on gel screens. We ligated the constructs from Tuesday--crtB with crtI and crtI with PtrpC. We continued recording measurements of G. lucidum’s growth in the presence of antibiotics.
-Rafael
September 20th
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We will start a new growth assay to test afp1. We ran a Q5 PCR for pAK13CR.
-Rafael
September 21st
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We set up the PCR to append KpnI and BamHI cut sites to pC13F again with different annealing temperatures and ran a gel to test the PCRs. Ran Gibson for pC13AI. A large Q5 PCR was done on fluorescent constructs pC13BQ with pC13AT, pC13BQ with pC13AU, pC13BR with pC13AU, pC13BR with pC13AT, and pAK13AO with pC13F. We ran the gel for pAK13CR from yesterday. We ligated the following: RBS + crtE to make pAK13CQ, RBS + crtB to make pC13CV, ctrB + pC13BG to make pC13DP, RBS + crtI to make pAK13CS. We attempted to transform pC13BV into BL21 E. coli, but failed. We then poured CYM plates.
-Rafael
September 21st
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We ran through our slides for the full team. We received a lot of good advice, and we still have a lot of work to do, but most of it will have to wait until after tuesday so we don’t fail our orgo exam! The main suggestion would be to change the theme of the presentation as the baby blue and serene green are too subtle to captivate attention. In addition, there are little glitches to the images.
-Arun , Eric
September 22nd
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We plated pC13AI. We are continuing Aspergillus growth assay, and completed the G. lucidum growth assay.
-Rafael
Week 15
(09/23 - 09/29)
September 23rd
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Today we ran a gel to verify insert lengths from Q5 PCR products of fluorescent constructs. We also transformed our T7 + hygromycin resistance construct into E. coli for characterization, and set up a zone of inhibition experiment to test the efficacy of antibiotics and antifungals on G. lucidum.
-Rafael
September 24th
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The gel of pC13AI showed nothing - the EtBr (for gel staining) needs to be replaced. We also continued putting our T7+resistances constructs into E. coli for part characterization.
-Rafael
September 25th
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Sequencing of pC13CO did not turn out to be positive. Still trying to get data from Aspergillus and growth assay, and characterizing the T7 promoter and antibiotic resistances constructs.
-Rafael
September 25th
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We made a lot of changes to the presentation tonight, and it is an almost polished form now. Arun switched to his next color scheme: a deep Cornell red with baby blue banners. Eric has gotten his part of the script memorized. He will be speaking about the three components of our project. The fungal toolkit, and its implementation through the carotenoid pathway and antifungals expression. Hannah has also prepared her part on human practices. In addition she has prepared an analysis on the market trends towards bioplastics.
-Arun, Eric
September 26th
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The T7 promoter and hygromycin resistance construct appears functional in E. coli.
-Rafael
September 26th
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Today we met again with Oat to make some changes to our images. Arun moved onto his next color scheme: the same deep maroon with elephant grey banners. In addition, the data, and ending slides will follow a baby blue and off white color scheme. We also made a few of our slides (our styrofoam map, standoff figure, and toolkit image) fancier and more attractive.
-Eric
September 27th
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Today we met again with Oat to make some changes to our images. Arun moved onto his next color scheme: the same deep maroon with elephant grey banners. In addition, the data, and ending slides will follow a baby blue and off white color scheme. We also made a few of our slides (our styrofoam map, standoff figure, and toolkit image) fancier and more attractive. Arun also experimented with backgrounds of clouds, dirt, and toolkit to make the introduction slides very sharp. It look like we now have a solid design for our presentation.
-Arun,Eric