Team:Baltimore US/Notebook

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|With a little guidance from some trained professionals we should be able to figure this stuff out...<br>
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I think we are actually getting there!! - Dr Liz
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|[[Image:Baltimore_US_logo.png|200px|right|frame]]
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|[[Image:Baltimore_US_team.png|right|frame|Your team picture]]
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|align="center"|[[Team:Baltimore_US | Team Example]]
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<!--- The Mission, Experiments --->
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{| style="background-color:#7998AD;" cellpadding="1" cellspacing="1" border="0" bordercolor="#fff" width="924px" align="center"
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!align="center"|[[Team:Baltimore_US|Home]]
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!align="center"|[[Team:Baltimore_US|<span style="color:white;">Home</span>]]
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!align="center"|[[Team:Baltimore_US/Team|Team]]
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!align="center"|[[Team:Baltimore_US/Team|<span style="color:white;">Team</span>]]
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!align="center"|[https://igem.org/Team.cgi?year=2010&team_name=Baltimore_US Official Team Profile]
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!align="center"|[https://igem.org/Team.cgi?year=2010&team_name=Baltimore_US <span style="color:white;">Official Team Profile</span>]
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!align="center"|[[Team:Baltimore_US/Project|Project]]
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!align="center"|[[Team:Baltimore_US/Project|<span style="color:white;">Project</span>]]
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!align="center"|[[Team:Baltimore_US/Parts|Parts Submitted to the Registry]]
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!align="center"|[[Team:Baltimore_US/Parts|<span style="color:white;">Submitted Parts</span>]]
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!align="center"|[[Team:Baltimore_US/Modeling|Modeling]]
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!align="center"|[[Team:Baltimore_US/Modeling|<span style="color:white;">Modeling</span>]]
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!align="center"|[[Team:Baltimore_US/Notebook|Notebook]]
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!align="center"|[[Team:Baltimore_US/Notebook|<span style="color:white;">Notebook</span>]]
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!align="center"|[[Team:Baltimore_US/MeetingTimes|Meeting/Lab Times This Week]]
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!align="center"|[[Team:Baltimore_US/MeetingTimes|<span style="color:white;">Meeting/Lab Times</span>]]
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!align="center"|[[Team:Baltimore_US/Safety|Safety]]
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!align="center"|[[Team:Baltimore_US/Safety|<span style="color:white;">Safety</span>]]
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__NOTOC__
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'''==Notebook==''' <br>
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== Group Notebook ==
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'''August 23 @ Burkett Lab''' <br>
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[[Team:Baltimore_US/OctGroupNotebook|Notes for October 2010]] <br>
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Parts to be transferred to Roberts Lab:
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[[Team:Baltimore_US/SeptGroupNotebook|Notes for September 2010]] <br>
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<table border="2" cellspacing="0" cellpadding="6" rules="groups" frame="hsides">
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[[Team:Baltimore_US/AugGroupNotebook|Notes for August 2010]] <br>
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<caption></caption>
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[[Team:Baltimore_US/JulyGroupNotebook|Notes for July 2010]] <br>
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<tr><th scope="col">Name</th><th scope="col">Well</th><th scope="col">Plasmid</th><th scope="col">Resistance</th><th scope="col">Description</th><th scope="col">Comments</th></tr>
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[[Team:Baltimore_US/JuneGroupNotebook|Notes for June 2010]]
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<tr><td><partinfo>BBa_C0051</partinfo></td><td>4E</td><td>pSB1A2</td><td>A</td><td>cI repressor from E. coli phage lambda (+LVA)</td><td></td></tr>
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<tr><td><partinfo>BBa_R0040</partinfo></td><td>6I</td><td>pSB1A2</td><td>A</td><td>"TetR repressible promoter"</td><td></td></tr>
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<tr><td><partinfo>BBa_E0420</partinfo></td><td>8K</td><td>pSB1A2</td><td>A</td><td>"ECFP (RBS+ LVA- TERM) (B0034.E0020.B0015)"</td><td></td></tr>
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<tr><td><partinfo>BBa_J61117</partinfo></td><td>11L</td><td>pSB1A2</td><td>A</td><td>Ribosome Binding Site Family Member</td><td></td></tr>
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<tr><td><partinfo>BBa_E0240</partinfo></td><td>12M</td><td>pSB1A2</td><td>A</td><td>GFP generator</td><td></td></tr>
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<tr><td><partinfo>BBa_I0500</partinfo></td><td>14N</td><td>pSB2K3</td><td>K</td><td>Inducible pBad/araC promoter</td><td></td></tr>
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<tr><td><partinfo>BBa_J23100</partinfo></td><td>18C</td><td><partinfo>BBa_J61002</partinfo></td><td>A</td><td>constitutive promoter family member</td><td></td></tr>
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<tr><td><partinfo>BBa_I13504</partinfo></td><td>22I</td><td>pSB1A2</td><td>A</td><td>Screening plasmid intermediate</td><td></td></tr>
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<tr><td><partinfo>BBa_I12007</partinfo></td><td>2-11L</td><td>pSB2K3</td><td>K</td><td>OriTF</td><td></td></tr>
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<tr><td><partinfo>BBa_J01002</partinfo></td><td>2-22I</td><td>pSB1AC3</td><td>A</td><td>Lambda Prm Promoter</td><td></td></tr>
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</table>
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'''August 16, 2010 @ Burkett's Lab  <br>'''
 
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Bernadette's notes: <br>
 
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Robert ran gels from our rxns on Aug 12th - success-  Robert analyzed <br>
 
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We tweaked rxn conditions for optimal DNA amplification.  <br>
 
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Bernadette's rxn primers included TAQ Rm and Bb Suufix + TAQ Reverse <br>
 
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PCR temps ranging from 57 degrees C to 98 for 30 cycles <br>
 
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Robert's rxn primers included Fwd Poll Complement and TAQ Fm <br>
 
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Robert ran separate PCR
 
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'''August 12, 2010 @ Burkett's Lab  <br>'''
 
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Bernadette prepped Control for PCR (Color Coded Red) with 34 ul H20, 2ul Control Template DNA, <br>
 
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10 ul 5x Pfu HF Buffer, 1 ul 10mM dNTPs, 2.5 ul Primers, .5 ul Pfu DNA Polymerase <br>
 
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Cycling 72 - 98 degree C, hold @ 10 degrees C
 
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Also ran Agarose gel for PCR 2.. <br>
 
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prepped 2 gels - one refrigerated for future use <br>
 
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Observed apparent DNA fragment, but will re-run samples on Monday with ladders to confirm results <br>
 
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'''August 11th, 2010 @ Burkett's Lab''' <br>
 
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Bernadette's notes:
 
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PCR from Aug. 10th unsuccessful due to the low PCR temp of 72 degrees C.  New primers received require low <br>
 
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temp of 69 degrees. <br>
 
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Prepared PCR 1: Rxn 1 (colored coded Black) included 2.5 ul Taq DNA, 10 ul Pfu buffer <br>
 
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25.5 ul H20, 1ul dNTP, 5 ul (diluted) Fwd Poll Complement, 5 ul (diluted) TAQ RM, 1 ul Pfu. <br>
 
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Rxn 2 (Color coded Blue) was identical to Rxn 1 except it included 1 ul DMSO & 24.5 ul H20 <br>
 
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3rd group (Color coded Red) was a no DNA group <br>
 
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4th group (Color coded Green) was a no enzyme group <br>
 
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Ran a Touch Down PCR ranging from 61 - 98 degrees C <br>
 
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Prepped PCR 2:  <br>
 
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Rxn 1 (Color coded Light Green): 2.5 ul Taq DNA, 25.5 ul H20, 1 ul dNTPs, 5 ul TAQ FM (diluted) <br>
 
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5 ul Bb suffix+TAQ RM (diluted), 10 ul PFU buffer & 1 ul PFU <br>
 
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No DNA rxn (Color Coded Orange) prepped w/ 28 ul H20 & obviously no TAQ DNA  <br>
 
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No PFU rxn (Color Coded Brown) prepped w/ 29 ul H20 & no PFU <br>
 
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Touchdown PCR --cycles ranging from 61-98 degree C <br>
 
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Agarose gel ran for PCR 1 completed 8-11 <br>
 
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'''August 10th, 2010 @ Burkett Lab ''' <br>
 
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Robert's notes: <br>
 
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New dNTPs and Primers for PCR received and aliquots made of each. <br>
 
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PCR optimization can be started back up once again, now that uncontaminated <br>
 
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materials are available again.  Testing the necessity of a 2:00 minute denature time <br>
 
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at the start of the PCR program, as well as testing three parts <br>
 
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(J23056, J23031 & J23008) for DNA after boiling mini-prep from a few days ago. <br>
 
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For the PCR, I am using concentrations of .5 uM for primers and 200 uM for dNTPs, <br>
 
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a 1:1000 dilution of the three parts for boiling prep DNA, and for the other <br>
 
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tube's DNA, a 1:10000 dilution of J04450.<br>
 
<br>
<br>
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Duke ran a gel for the PCR products from last night's meeting, where he and <br>
 
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Bernadette had started work on the TAQ project's first step. The results were <br>
 
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less than he had hoped, based on his reaction to the gel.  <br>
 
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<br>
 
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Patrick's notes: <br>
 
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<br>
 
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'''August 9th, 2010 @ Burkett lab'''  <br>
 
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Bernadette's notes: <br>
 
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Duke ran PCR #1 <br>
 
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Rxn 1 consisted of 1 ul PFU, 2.5 ul Taq DNA, .5 ul FM, .5 ul RM, 10 ul PFU buffer <br>
 
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.5 ul dNTP & 35 ul H20.  <br>
 
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Rxn 2 was identical to Rxn 1 except it contained 1 ul DMSO & 35 ul H20  <br>
 
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A No DNA sample was produced and A No PFU sample was also produced <br>
 
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Bernadette ran PCR #2 <br>
 
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Rxn 1 consisted of 1 ul PFU, .5 ul FM, .5 ul RM, 10 ul PFU buffer, 2.5 ul DNA, 35 ul H20 <br>
 
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Rxn 2 was identical to 1 except that it contained 1 ul DMSO & 34 ul H20 <br>
 
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A No DNA sample was produced (no DMSO) & a No PFU sample produced (no DMSO)  <br>
 
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All 8 rxns ran through 30 cycles ranging from 72-98 degrees C
 
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'''August 3rd, 2010 @ Burkett lab ''' <br>
 
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To determine validity of Castenholz media, Bernadette performed an inoculation <br>
 
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of Thermos Aquaticus/Taq.  Due to the non antibiotic resistant Taq, <br>
 
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inoculation completed under sterile conditions/hood with all equipment, material <br>
 
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and limbs under hood cleaned with 70% isopropanol w/autoclaved pipettes. <br>
 
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Taq kept at -85 degrees C, heat blocked at 37 degrees C for a minute <br>
 
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15 ml media was combined with Taq <br>
 
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Incubating overnight @ 70 degrees C to observe for Taq growth. <br>
 
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Patrick completed DNA extractions using 23007 and 23030  <br>
 
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Bernadette ran a gel to determine DNA presence.  <br>
 
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DNA successfully extracted confirmed by Electrophoresis.
 
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<br>
 
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'''July 29th, 2010 @ Roberts Lab / Towson''' <br>
 
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Dr liz is wondering if anyone is bringing materials from CCBC over to the TU lab today. It is currently 1:50pm at the time of this post. Please email Dr Liz and let her know what, if anything, you are planning for today.<br>
 
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<br>
 
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'''July 28th, 2010 @ Roberts Lab / Towson''' <br>
 
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In Attendance: Dr Roland Roberts, Dr Liz, Dr Schiefele, Patrick, Ryan, Duke <br>
 
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<br>
 
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Dr Liz introduced this group of iGEM folks to Dr Roland Roberts. Dr Roberts is willing to have a small cadre of the iGEM Team Baltimore work in his lab. Because Dr Roberts is not officially an iGEM Advisor, we are going to be especially considerate about using his lab space. '''We are not going to have any more people come into his lab space at this time.''' There may be room for one more person to work in the Roberts' Lab at a later date.<br>
 
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<br>
 
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Dr Roberts has a very disctinct protocol in his lab, and he was kind enough to distribute Lab Instructions to all of us -- these are what he gives his own students when they first comoe into his lab. We are very grateful for Dr Roberts' support, and we will show that by being especially sensitive to his lab policies and procedures.
 
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Dr Roberts keeps a sterile working environment. PCR reactions and cloning are always done under the hood. His lab only uses filtered tips. Dishes do not stack up in his sink. We will help do the autoclaving. Ethidium Bromide is done in only one area of the lab - it is stained into gels after they are run, rather than put into the gel agarose. The reasons for all of Dr Roberts' protocols are completely obvious. (Even if they weren't, we would follow them anyway!) <br>
 
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<br>
 
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We will have to provide ALL of our expendables - from gloves, tape, felt-tips, foil for autoclaving, tissue wipes, clips and storage bottles, to all reagents we need for reactions. That means gel agarose, molecular ladder, restriction enzymes, ligase, competent cells, antibiotics, cell culture plates and agar, DNA oligos, primers, dntp's, polymerase, BSA, buffers for PCR and Restriction digestion reactions. We also need to bring over a gel apparatus or two (he has ample power supplies), pipetmen, filter tips, tubes of all sizes, work blocks for holding tubes, chemical jars (orange lids) if we need to mix up own own solutions. Other needs will become apparent as we begin to perform experiments in the Roberts lab.<br>
 
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<br>
 
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We do not have to provide our own TAE, TBA or paper towels. These items are cheap enough that Dr Roberts can let us use his. We will not bring ethidium bromide for now. Maybe later.<br>
 
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<br>
 
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We may use Dr Roberts' glassware. If you break it, Dr Liz buys it. Please be careful! We have access to PCR machines, rockers, water bath, centrifuges, spinners, cold centrifuge, fridge, freezers (both -20 and -80), microwave, autoclave, and the gel imaging system. The cell culture room is on the 4th floor of Smith and is open all the time for anyone's use.<br>
 
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<br>
 
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We may also use the PC's in the lab for lab-related work or checking email. (Please do not update your facebook account on Dr Roberts' PC's!). He has two pipet stands - one has been spoken for by Dr Liz. Sr Jim Saunders, Director of the MB3 Program, has gotten lengthy wish lists over the last few days from Dr Liz, and he has already provided storage boxes for tubes. He emailed Dr liz yesterday and said he has more stuff. Dr Saunders is sure to be a great resource. <br>
 
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<br>
 
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In Dr Robert's lab, it goes without saying that Dr Roberts' say is final. Otherwise, Dr Liz's say is final. It is her reputation on the line at the Towson Lab space, and anything the iGEM team does will reflect directly on Dr Liz. Anyone who cannot work under that caveat should bow out now from the Towson Lab space. <br>
 
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<br>
 
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On a more upbeat note, the Towson Lab will have results to report soon, we hope!<br>
 
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<br>
 
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'''July 27th, 2010 @ Burkett Lab<br>
 
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Day Shift: Patrick, Robert, Duke and Ryan<br>
 
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<br>
 
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Running restriction digests on ANN parts for validation.  Problem with <partinfo>J23030</partinfo>: restriction digest shows only a faint band of genomic DNA in lanes 2 & 3 (cut, uncut with Spe1):
 
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http://imgur.com/ePNEO.jpg
 
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Will run a larger gel tomorrow with all ANN parts to confirm.
 
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--[[User:Pon|Pon]] 22:40, 27 July 2010 (UTC)
 
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Ryan ran the transformations for the PoliColi Ignition Ligation. (<partinfo>R0010</partinfo>, <partinfo>B0034</partinfo>, <partinfo>PsB1C3</partinfo>)<br>
 
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https://static.igem.org/mediawiki/2010/c/c2/BbPart_%28Ignition-R0010%2CB0034%2CPsB1C3%29Transformation.pdf<br>
 
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When we return to the lab on thursday, cell plates must be checked from incubator. Looking especially for results on RXN plate, sample should be run for electrophoresis sizing after additional culturing.<br>
 
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<br>
 
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'''July 26th, 2010 - Burkett Lab'''<br>
 
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Attendence: Robert, Duke, Ryan, Patrick<br>
 
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<br>
 
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Ryan ran the Photospectrometer analysis on the Bb DNA that's been cultured for the ANN and PolIColi ignition components.
 
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Results are as follows...<br>
 
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<br>
 
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<bbpart>J01001</bbpart> A260 = 1.03  Concentration= 51.57 ug/ml    Concentration = 0.05  ug/ul<br>
 
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<bbpart>J01003</bbpart> A260 = 2.37  Concentration = 118.55 ug/ml  Concentration = 0.12  ug/ul<br>
 
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<bbpart>J23007</bbpart> A260 = 1.33  Concentration = 66.72 ug/ml  Concentration = 0.07 ug/ul<br>
 
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<bbpart>J23008</bbpart> A260 = 2.52  Concentration = 125.74 ug/ml  Concentration = 0.13  ug/ul<br>
 
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<bbpart>J23022</bbpart> A260 = 1.87  Concentration = 93.46 ug/ml  Concentration= 0.09  ug/ul <br>
 
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<bbpart>J23030</bbpart> A260 = 3.11  Concentration = 155.94 ug/ml  Concentration = 0.16  ug/ul<br>
 
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<bbpart>J23031</bbpart> A260 = 0.14  Concentration = 7.11 ug/ml  Concentration = 0.01  ug/ul<br>
 
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<bbpart>J23032</bbpart> A260 = 2.01  Concentration = 100.36 ug/ml  Concentration = 0.10 ug/ul<br>
 
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<bbpart>J23036</bbpart> A260 = 2.08  Concentration = 104.07 ug/ml  Concentration = 0.10  ug/ul<br>
 
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<br>
 
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<bbpart>R0010</bbpart> A260 = 1.44  Concentration = 72.19 ug/ml  Concentration = 0.07  ug/ul<br>
 
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<bbpart>B0034</bbpart> A260 = 2.55  Concentration = 127.36 ug/ml  Concentration = 0.13  ug/ul<br>
 
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<bbpart>B0015</bbpart> A260 = 2.43  Concentration = 121.23 ug/ml  Concentration = 0.12 ug/ul<br>
 
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<br>
 
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'''July 23rd, 2010 at Towson Campus'''<br>
 
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In Attendance: Liz, Roland Roberts, Jim Saunders<br>
 
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<br>
 
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Dr Liz met with Dr Roberts and was given the tour of the lab space and equipment available for Team Baltimore to use if a subgroup wants to work at TU. All the usual equipment is available except Dr Roberts want Team Baltimore at TU to bring their own set of pipetment, and of course, supply its own needs for expendable items. Dr Jim Saunders has taken a copy of Team Baltimore at TU's wish list, and says he can provide a set of pipetment, and tips/tubes without much trouble. We also need to take a gel electrophoresis apparatus, because Dr Roberts has a limited supply and other students use them frequently. He does have an extremely large one he said we could use.<br>
 
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Dr Roberts wants to meet with the students who wish to have access to his lab, sooner rather than later. It is important that Team Baltimore bring reagents over to the Roberts Lab and begin to use some of the space Dr Roberts has set aside for us, in order to demonstrate that we are serious about using his lab. Anyone who would like to work at the TU site sometimes should contact Dr Liz immediately.<br>
 
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There is a DNA sequencer and a high-throughput DNA seperator that is accurate to 1 bp for oligos between 100-650 bp long. If Team Baltimore wants to use this machine, that is possible. In that case Dr liz will talk to her Dean at TU to acquire funds to help share the cost of using it.<br>
 
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<br>
 
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'''July 20th, 2010'''<br>
 
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In Attendance: Gary, Bernadette, Tom, Patrick, Ryan<br>
 
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During day shift, Robert finished working on PCR optimizations. While Patrick and Ryan, troubleshot their primers and put the order in so that they can begin PCR reactions when they return on monday.<br>
 
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Bernadette concentrated on her Ligation reactions for the PolIColi project. <br>
 
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Ligation reaction (COLOR CODED RED)included: 6 ul R0010 promoter, 6 ul B0034 RBS, <br>
 
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2 ul PsB1C3 chloremphenacol resistant plasmid,2 ul buffer, 3 ul H20 & 1 ul ligase enzyme <br>
 
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For comparison, I also completed a 'No Insert' group (COLOR CODED TEAL/BLUE)using 2 ul plasmid, 2 ul buffer,<br>
 
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15 ul H20, 1 ul ligase<br>
 
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In addition a 'No Enzyme' group (COLOR CODED DARK GREEN)was completed that included 6 ul R0010 promoter, <br>
 
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6 ul B0034 RBS, 2 ul plasmid, 2 ul buffer, 4 ul H20 <br>
 
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The 3 groups were incubated at 16 degrees C overnight
 
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<br>
 
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Gary got caught up on project status and development.<br>
 
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<br>
 
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'''July 19th, 2010'''<br>
 
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In attendance: Miles, Patrick, Robert, Duke, Liz, Tom, Bernadette, Steven<br>
 
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Steve transformed <partinfo>J23030</partinfo> as it was the only DNA from last week's transformations that did not develop any colonies.<br>
 
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Bernadette began restriction digestions for the Bbparts for the PoliColi project.<br>
 
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Part #'s<br>
 
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<partinfo>R0010</partinfo> The LacI Promoter<br>
 
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<partinfo>B0034</partinfo> The Strong RBS<br>
 
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<partinfo>PsB1C3</partinfo> A Chloremphenacol Resistant Plasmid Backbone<br>
 
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<partinfo>B0014</partinfo> The Double Terminator<br>
 
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<partinfo>R0010</partinfo> and <partinfo>B0034</partinfo> are meant to be ligate into the <partinfo>PsB1C3</partinfo> as all the initial PoliColi Bbparts had a native Amp resistance and one had Amp and Kanamyacin.<br>
 
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The <partinfo>B0014</partinfo> will be ligated with the PoliColi NewPart once the Overlap Extension Point Mutation PCR is completed.<br>
 
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Restriction digestion included the following: R0010 Promoter (COLOR CODED BLUE): 5 ul DNA, 5 ul buffer#4, <br>
 
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37.5 ul H20,cuts made with 1 ul EcoRI and 1 ul SpeI enzymes, and .5 ul BSA  The result will be the insert <br>
 
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In a separate reaction B0034 RBS (COLOR CODED PURPLE): 5 ul DNA, 5 ul buffer #4, 37.5 ul H20, 1 ul XbaI,<br>
 
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1 ul PstI,.5 ul BSA <br>
 
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The 3rd reaction PsB1C3 plasmid(COLOR CODED LIGHT GREEN): 5 ul DNA, 38 ul H20, 5 ul buffer #4, 1 ul EcoRI,<br>
 
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1 ul PstI, no BSA <br>
 
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Incubated overnight 37 degrees C
 
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Ryan and Patrick began working on Primer design for their various PCR projects.<br>
 
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Miles showed off initial development of Gel Electrophoresis Kit and Power Supply. Discussed PCR construction with Tom, as well as introduction to Oligonucleotide synthesis.<br>
 
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<br>
 
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'''July 12th - 15th, 2010'''<br>
 
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Dayshift Lab Techs began DNA Preparation of various identified BbParts. Robert and Duke finished with Boiling Prep.<br>
 
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Evening Lab intermittently closed with Tom unavailable for lab supervision.<br>
 
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<br>
 
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'''July 8th, 2010'''<br>
 
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In Attendance: Gary, Patrick, Robert, Lisa, Liz, Steven
 
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Strategy Meeting in spare room. Patrick outlined strategy of ANN (Artificial Neural Network) based on Berkeley's previous work. Discussed use of conjugation plasmids for weight assessment.<br>
 
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<br>
 
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'''July 6th, 2010'''<br>
 
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Can't quite remember back far enough to state what occurred. Got to remind everyone to update the notebook wiki page as during the evening's in question.<br>
 
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<br>
 
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'''July 1st, 2010'''<br>
 
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Ryan didn't make it, but I hear something happened.
 
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<br>
 
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'''June 29th, 2010''' <br>
 
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In attendance: Day - Duke, Tom, Patrick, Ryan, Robert <br>
 
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Evening: Gary, Liz, Tom, Patrick, Duke, Ryan <br>
 
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<br>
 
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During the day-shift Robert continued to work on the PCR optimization, with the second set of Gels showing a continued contamination of one of the main components, pointing possibly to the template mixing into the dNTP's. Patrick helped Tom with some Thermophilic cultures, and Ryan completed the Plasmid Transformations of T3, K3, & C3 along with the Batch prep of the CAT8 plasmids.<br>
 
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<br>
 
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We caught tonight's attendees up to speed as to where the group stands on it's individual projects. Then together we discussed in detail how to break up the foundational work-flow and what steps need to be accomplished to make them happen.
 
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Patrick detailed some of the foundational work previously performed by the earlier iGEM teams on Artificial Neural Networks.<br>
 
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DIY-Gem notes: Creation of Pol-1 Taq Polmerase in Bb format J04637.1<br>
 
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1. Amplify Pol-1 gene from T. Aquaticus <br>
 
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  Convert to Bb format - Add Bb Prefix and Suffix <br>
 
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  Change internal Pst-1 site - Single BP Mutation <br>
 
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2. Characterize Part <br>
 
-
  Error Rate? <br>
 
-
  Activity <br>
 
-
  Etc... (Versus Lab Ordered Purity) <br>
 
-
3. Educational Supplementation <br>
 
-
  Techniques - How to do a single point mutation <br>
 
-
  Tools Discussion / Software & Hardware <br>
 
-
<br>
 
-
DNA Computing Notes: Turing Automatons w. Back Propagation <br>
 
-
1. What Species is it? <br>
 
-
  Identifying parts available. <br>
 
-
  Identify parts to be made. <br>
 
-
  Assemble parts. <br>
 
-
  Build Assemblies. <br>
 
-
  Test & Characterize System. <br>
 
-
What is a Neural Network? The XOR switching system. <br>
 
-
  - Addressable Conjugation. <br>
 
-
  - RNA Hairpins. <br>
 
-
  - HSL Senders / Receivers. <br>
 
-
  - Others. <br>
 
-
  - Attaching varied weights among various pathways. <br>
 
-
  - Summing. <br>
 
-
  - Thresholdiing. <br>
 
-
  - Back Propagation Control through Lysing (Cellular Suicide model). <br>
 
-
<br>
 
-
'''June 28th, 2010'''<br>
 
-
In attendance: Day - Duke, Robert, Patrick, Robert, Ryan, Tom <br>
 
-
Evening: Miles, Robert, Patrick, Tom, Ryan, Burnadette <br>
 
-
<br>
 
-
We welcomed a new comer Bernadette Gallagher. And spoke more in depth about project design and workflow. Tom helped get our new team mate oriented, while Miles, Patrick and Robert worked on flushing out conceptual foundations for their projects of interest.<br>
 
-
<br>
 
-
Ryan - Performed Restrictions (e/p)and Ligations on Pb1t3,c3,k3 while assisting the batch prep upon the CAT8 plasmids, performed first step lysis to instruction 14 putting DNA in alcohol. <br>
 
-
'''June 24th, 2010''' <br>
 
-
In Attendance: Patrick, Robert, Tom, Duke, Ryan <br>
 
-
<br>
 
-
After a roughly a week's break from official activities the team met to discuss
 
-
strategies and tactics. <br>
 
-
A few hands have been taking up the lab tech training from Tom and Duke throughout the lazy summer days, while doing so they revisited the basic procedural steps of ligation, gel-phoresis, transformation, as well as the tasks
 
-
of mixing and pouring media, basic chemical preparation, as well as safety and hygeine in the lab. Tom has also been introducing us to the concepts behind workflow and how to divide and stage the various processes towards a greater project concept. <br>
 
-
<br>
 
-
Miles suggested that he will be working towards several ideas in hardware project construction from a PCR unit to a DNA synthesizer. We discussed in depth Patrick's idea for the creation of a cellular automaton. He broke down the
 
-
previous tactics in DNA computing where everything is synthesized then re-sequenced for the answer, then posited the creation of an Artificial Neural Network type approach in utilizing various signaling proteins to reach consensus
 
-
and establishing some way to create back propagation of error. <br>
 
-
<br>
 
-
We've decided to restrict lab nights to Monday and Tuesday from 7-10pm, with a floater strategy meeting on Thursday nights so we can stimulate thought with a change of environment. With that in mind we are back tonight and look forward to
 
-
seeing those of you who can make it in to keep cranking on our technique.<br>
 
-
<br>
 
-
'''June 16th, 2010''' <br>
 
-
In attendance: Lisa, Ryan, Tom, Colin (for a short time), Duke (for a moment) <br>
 
-
Missing: Steve <br>
 
-
 
-
Earlier in the day, Robert and Ryan performed a mini-prep of the pcr'd plasmid backbones 3A1(2) and 5A1(2).
 
-
Robert also began working on finding optimized conditions for pcr. <br>
 
-
 
-
With the small turnout, Ryan began the digestion restriction with Colin's assistance. We combined the 2 strains of 3A1 and 5A1 together, then put together 3 - .8 eppendorf's with 50 ul of rxn ingrediates. <br>
 
-
<br>
 
-
(2 tubes of positive control of both along with 1 negative control that contained no enzymes and 40 ul of H2O) <br>
 
-
<br>
 
-
5 ul of DNA <br>
 
-
1 ul of Pst <br>
 
-
1 ul of EcoR1 <br>
 
-
5 ul of Buffer <br>
 
-
38 ul of H20 <br>
 
-
<br>
 
-
50 ul - Negative Controls Labelled with minus sign.<br>
 
-
<br>
 
-
 
-
After preparation, the cells were put into the pcr block for a 30 minute heat cycle. <br>
 
-
Tom will be heading to Arizona, tomorrow, so we called it a night so he could pack and go. <br>
 
-
It has been suggested that we run a "Low-Heat Agar Gel" so we can find and physically splice out the appropriate sized plasmid structures. <br>
 
-
<br>
 
-
'''June 15th, 2010''' <br>
 
-
In attendance: Patrick, Ryan, Duke, Tom, Steve <br>
 
-
Missing: Colin, Liz, Scott, Andy <br>
 
-
<br>
 
-
Tom says results seemed to have worked for all of the transformations this time. Some better then others. <br>
 
-
<br>
 
-
Steve asks the question.. "Why did transformation work better this time?" <br>
 
-
Tom discusses differences in attempts. <br>
 
-
<br>
 
-
Plasmid contains part a, another contains part b, another part c is simply a linear piece of DNA representing a Tet resistant backbone with the EcoRi and PstI restriction sites. <br>
 
-
<br>
 
-
We cut Part A with EcoR1 and Xba1. <br>
 
-
We cut Part B with Spe1 and Pst1. <br>
 
-
We cut the Linear Backbone Part C wit EcoR1 and Pst1. <br>
 
-
<br>
 
-
Then we combined everything into one tube using 2 ul of each part into 1 tube, and added t4 DNA ligase, hoping to get a Part A joined to Part B, because the Spe1 combines with the Xba1. And the Part A would join Part C with the EcoR1 and the Part B with Part C at the Pst1 site. <br>
 
-
<br>
 
-
(See photo of board - ) <br>
 
-
<br>
 
-
Last week, we got nothing, so why? <br>
 
-
Where could things go wrong? <br>
 
-
They could go wrong at the restriction digestion reaction (less likely as process is fairly robust, and had been tested the day previously.)<br>
 
-
<br>
 
-
Ligation reaction may not have worked.. (again less likely, process is fairly robust). If the buffer isn't mixed well it may separate. <br>
 
-
How do we test? we could perform pcr to see if the ligation took place, using primers to amplify the ligated segment checking with gel electrophoreis to identify. <br>
 
-
 
-
Transformation reaction - (Except we ran positive controls successfully) <br>
 
-
Still possible to have mixed up the media, since positive used Amp instead.. <br>
 
-
Tom checked the media and found that wasn't the case. <br>
 
-
Amount of Plasmid may not have been accurate. (The only thing we didn't physically check ahead of time.) <br>
 
-
<br>
 
-
Pure operator/Pipetting action - such as the 30 second heating followed by
 
-
kill cycle. <br>
 
-
<br>
 
-
-------------- <br>
 
-
<br>
 
-
Detection limits for Ethidium Bromide 10-15 ngs of a product. <br>
 
-
(3600 bp ) (650 gm/b.p molar weight) <br>
 
-
2,340,000 Grams per mole of 3600 bp molecule. <br>
 
-
50 nanograms <br>
 
-
(50 x 10-9) / 2,340,000 = 2.1 x 10-14 moles <br>
 
-
<br>
 
-
Transformation rxn is 1 x 10 (-8/-9), still fairly efficient.<br>
 
-
<br>
 
-
We did 2 things last night, we did the transformations into the stocks.. <br>
 
-
<br>
 
-
By using assembly strategies that don't use the same resistance as the parts, we can more efficiently screen out non-transformed pieces. <br>
 
-
 
-
Previously in Genetic Engineering all parts and pieces had variorus resistances where as bb tries to create a standard. <br>
 
-
 
-
Cells can be lost in replication due to metabolic costs, and new generations lacking the Costly programming tend to outgrow the special cells. <br>
 
-
 
-
When designing the assembly strategy try to use a plasmid backbone with a different resistance to allow the filtration/screening of parts that didn't transform correctly.<br>
 
-
<br>
 
-
-----<br>
 
-
Gel-Electrophoresis Prep Review for tonights run. <br>
 
-
 
-
Agarose 2 % for smaller parts will create a more viscous environment. <br>
 
-
0.8% for the larger parts will allow longer molecules to move better. <br>
 
-
 
-
50ml final volume <br>
 
-
 
-
Weigh out the agarose (.4 gms for the 0.8%) (1 gm for the 2%) <br>
 
-
 
-
Emphasize again the importance of NCBI databases... http://www.ncbi.nlm.nih.gov/ <br>
 
-
With links to BLAST, PubMed, and other official literature. Program called entree which links all the information together. <br>
 
-
<br>
 
-
When reviewing the tubes from last evening left in PCR there was difficulty in identifying the tubes that were done by each individual. We spent a little time using the process of elimination. Knowing Patrick, Steve, Miles, Ryans and Gary's without issue, we had to guesstimate which was Roberts, and which was David's. The reason we needed differentiation was to create a loading template, in one of the two different agarose preparations. <br>
 
-
<br>
 
-
'''June 14, 2010''' <br>
 
-
In Attendance: Tom, Duke, Patrick, Robert, Steve, Gary, David, Ryan, Miles
 
-
 
-
3 Separate transformations attempted: <partinfo>pSB1C3</partinfo> [1-3A] (ChlorAmphenacol resistant), <partinfo>pSB1K3</partinfo> [1-5A](Kanamicin resistant), <partinfo>pSB1T3</partinfo> [1-7A] (Tetracycline resistant)
 
-
Control Group: PET-17B  (still had separate resistance for Ampicillan)
 
-
Tom will be culturing some adjacently resistant control groups for our next trial, thereby eliminating the extra variable in our testing.
 
-
 
-
<!-- Gary Cygiel -->
 
-
Procedural experience: <br>
 
-
Transformations using 1-3A
 
-
50uL EXPERIMENTAL <br>
 
-
200uL EXPERIMENTAL <br>
 
-
250uL NEGATIVE CONTROL <br>
 
-
Cells were plated and put in the 37C incubator.  Plates labeled in <font color="red">RED</font>.
 
-
 
-
9 Parts for PCR - 7 Distributed amongst us. Various participants were asked to look up their function and various bp lengths.
 
-
 
-
Patrick - <partinfo>Bba_R0010</partinfo> - 200 bp <br>
 
-
Gary - <partinfo>Bba_R0063</partinfo> - 151 bp <br>
 
-
Robert - <partinfo>Bba_J04450</partinfo> - 1,069 bp <br>
 
-
Dave - <partinfo>Bba_R0062</partinfo> - 55 bp<br>
 
-
Steve - <partinfo>Bba_J23009</partinfo> - 97 bp<br>
 
-
Miles - <partinfo>Bba_I731014</partinfo> 1,938 bp<br>
 
-
Ryan - <partinfo>Bba_I13507</partinfo> - Intermediate Screening Plasmid - 861 bp <br>
 
-
 
-
PCR for part [http://partsregistry.org/wiki/index.php/Part:BBa_R0063 R0063]: <br>
 
-
Vial labeled with <font color="red">RED X </font> is the EXPERIMENTAL REACTION <br>
 
-
Vial labeled with <font color="red">RED Y </font> is the TEMPLATE CONTROL <br>
 
-
Vial labeled with <font color="red">RED Z </font> is the PRIMER CONTROL <br>
 
-
 
-
PCR Polymerase Chain Reactions<br>
 
-
 
-
Requirements <br>
 
-
1. Template <br>
 
-
2. 2 Primers (limiting) <br>
 
-
3. dNTP's (limiting) <br>
 
-
4. Polymerase (limiting by heatcycle) Using Taq which tends to transcribe more errors. <br>
 
-
5. Buffer (mg++) (limiting) <br>
 
-
 
-
Primers are 18-30 bp long. Have to be at least 15 bp long. Primers bind to template DNA, one primer for each (5'/3' strands).
 
-
Review: What is a base..? Sugar with A, C, T or G is a nucleotide. BP are the matching set of 5' and 3' hydrogen bonded nucleotides.
 
-
 
-
Polymerase links free dNTP's to the opened strand edges of basepairs. <br>
 
-
Denaturation 95 - 98 degrees c... DNA Melts <br>
 
-
Anealing 40 - 65 degrees c... Primer Binds <br>
 
-
Extension 72 degrees c... Strands Extend <br>
 
-
30 second cycles... <br>
 
-
 
-
As the DNA heats it denatures then as it cools the primers anneal and polymerization takes place creating twice as many strands. The strands are held together only by hydrogen bonds, making it very easy to melt and reform. The polymerase acts like a little machine stitching the free dNTP's into the template.
 
-
 
-
BioBrick plasmids have bb prefix and suffix. Primer binding sites vf2, vr.
 
-
Theoretically any area can become a primer site.
 
-
 
-
With PCR we can identify and amplify particular strands/compositions. You have to know how much of the requirements to use.
 
-
Gary asked if Tom could show us where to find the optimized volume information at, and he agreed to pull out the research to show how to optimize.
 
-
 
-
With PCR you can also design primers and introduce mutations. If primers are too short they can bind to the wrong spot.
 
-
Actual reactions may vary based on bp length and combination. Usually they are tweaked for the optimal over a series of trials.
 
-
 
-
PCR Reactions (Specific to this evening's trial) <br>
 
-
<table border="1">
 
-
<tr><td> </td><td> Experimental Reaction </td> <td> Neg. Template Control </td> <td> Neg. Primer Control> </td></tr>
 
-
<tr><td> Template </td> <td> 2 uL </td>  <td> 0 </td> <td> 2 uL </td></tr>
 
-
<tr><td>Forward Primer [VF2 310 uM] </td> <td> 16uL** </td> <td> 16uL** </td> <td> 0 </td></tr>
 
-
<tr><td>Reverse Primer [VR 345 uM] </td> <td> 14uL** </td> <td> 14uL** </td> <td> 0 </td></tr>
 
-
<tr><td> dNTPs </td>  <td> 1uL </td> <td> 1uL </td> <td> 1uL </td></tr>
 
-
<tr><td> Rxn Buffer [5X-k] </td> <td> 10uL </td> <td> 10uL </td> <td> 10uL </td></tr>
 
-
<tr><td> Enzyme </td> <td> 0.5uL </td> <td> 0.5uL </td> <td> 0.5uL </td></tr>
 
-
<tr><td> Water </td> <td> 6.5uL </td> <td> 8.5uL </td> <td> 36.5uL </td></tr>
 
-
<tr><td> Total Volume </td>  <td> 50uL </td> <td> 50uL </td> <td> 50uL </td></tr>
 
-
<tr><td> ** indicates 1:100 dilution </td></tr>
 
-
</table>
 
-
34mM of dried DNA in primers ($12.50) <br>
 
-
 
-
Several companies provide these primers: invitrogen is an example.<br>
 
-
 
-
34 x 10-9 moles / 100 x 10-6 liters = 3.4 x 10 -7 moles/liter<br>
 
-
 
-
Tomorrow we will look at the parts we pcr'd and then see how the bp length matches. If nothing happens its probably a pipetting error. If too many bands it may be an annealing issue.
 
-
 
-
We will also look at the cells we plated of the various transformed parts, 3A, 5A, 7A, and see again if any of the colonies grew.
 
-
 
-
----
 
-
 
-
'''June 10, 2010''' <br>
 
-
In attendance: Duke, Gary, Robert, Patrick, Ryan, Miles, Steven, Liz, and Colin.
 
-
 
-
Tonight we tested the hypothesis that the plasmid did not code for the antibiotic resistance/that we did not use enough DNA.  A Restriction Digest reaction was set up on the ligation reactions completed on June 7.  The reactions were cut with EcoR1 and Pst1.  The reactions were allowed to incubate at 37 degrees C for one and a half hours.  The digests were then ran on a electrophoresis gel.  No DNA was present as there was not enough DNA, thus proving Duke's hypothesis.
 
-
 
-
----
 
-
 
-
 
-
'''June 9, 2010''' <br>
 
-
In attendance: Duke, Tom, Ryan, Patrick, Lisa, Steven.
 
-
Missing: Kyle and Friend(Forgot his name)
 
-
 
-
1) Registration for iGEM site & Team affiliation, required to update team wiki.
 
-
 
-
2) Access and update wiki..
 
-
Consider stylization, as well as information content. Who is our audience?
 
-
Team info - blurb and caption of team members. Couple of sentences about you and your interests.
 
-
Lab Notebook? - Openwetware connection.
 
-
 
-
3) Research biobrick parts by accessing in Registry of Standard Parts.
 
-
XF to see if new combination are already on file?
 
-
If not begin documentation of the 3 new assemblies, with image using standard BioBrick icons.
 
-
Document bp length of new parts to compare with Gel-Electrophoresis.
 
-
How do we test efficacy? (Part for PPM still in brick.)
 
-
 
-
Is the media okay, is the antibiotic right. Positive tells you whether the cells themselves were capable of taking up our DNA. (Ideally, they should use the same antibiotic resistance, as our parts.
 
-
 
-
Negative groups tells us whether the antibiotic and media was effective and that the cells were not resistant to the media.
 
-
 
-
We know that cells were competent they were able to be transformed, and the antibiotic was effective. So the remaining question is whether they were able to be transformed.
 
-
 
-
The ligation's are in question. Generally the restrictions and ligation's go smoothly.
 
-
 
-
Tom's Hypothesis is questioning whether the media plates may have been mis-labeled with the wrong antibiotic resistance. Since we used a different resistance for controls, there was no telling.
 
-
 
-
Possible denaturing of enzymatic proteins from the heat shock on the initial restriction? 80c kill cycle.
 
-
Vector ? - Linear plasmids - ''was the amount to small...?
 
-
Parts - size already was confirmed, according to Tom
 
-
 
-
No Transformations.... so now what? Primers still on the way. Don't need to go to scratch.
 
-
 
-
 
-
The Core enzymes needed to perform the biobricks constructions...
 
-
Spe1
 
-
pst1
 
-
ecor1
 
-
xba1
 
-
t4dna ligase
 
-
polymerase
 
-
 
-
Project idea: <br>
 
-
Polymerase in e.coli,  tag, perhaps other enzymes could be self-manufactured/purified.
 
-
 
-
Basic tools/measurements <br>
 
-
* Micropipetters [Measuring volume] <br>
 
-
* Measuring Mass <br>
 
-
* DV/HD camera - you tube videos and components. <br>
 
-
* Mini-preps. Growing the cells and isolating DNA. Cell competency Preparations. <br>
 
-
 
-
Lac polymerase - DIY-GEM
 
-
 
-
How do you purify?
 
-
 
-
What do you do with it... what is the process to create a project?
 
-
 
-
Hardware only takes you so far, these 5 basic tools.
 
-
Restrictions
 
-
Ligations
 
-
Transformations/Plating
 
-
PCR
 
-
Gel Electrophoresis
 
-
 
-
The core will be good technique with these processes and then the ability to understand the existing database navigation with the proper questions to yield an experiment of interest.
 
-
 
-
Research educational tools from the MIT educator on IGEM site.
 
-
Should we have an e-mail/Comments section added to wiki - openwetware, so observers can ask us questions?
 
-
 
-
 
-
----
 
-
 
-
 
-
'''June 8, 2010''' <br>
 
-
 
-
In attendence: Colin, Patrick, Liz, Ryan, Duke and Tom.
 
-
Missing: Andy, Scott.
 
-
 
-
So tonight we came in and took the 4 ligation's/new part combinations from yesterday and transformed them into the competent cells, using a heat-shock transformation, while also preparing the Control groups (one with nothing/one with the ampicillin resistance). 3 of the parts were Tetracycline resistant, and 1 was Chlorephenecol. After the 90 minute transformation cycle we plated 6 versions of each of the 3 parts along with 1 plate of control and one negative group.
 
-
 
-
The 6 plates were done in a 0, -1, -2 dilutions in 2 concentrations one of 50 ul, and one of 200 ul.
 
-
 
-
They will be left for tomorrows team to run gel electrophoresis to determine whether they have the appropriate combination links.
 
-
 
-
 
-
----
 
-
 
-
 
-
'''June 7, 2010''' <br>
 
-
 
-
In attendance: Colin, Patrick, Robert, Ryan, David, Gary, Miles, Duke and Tom.
 
-
Missing: Melissa.
 
-
 
-
Tom greeted us with 4 separate sheets that contained 3 reactions each for us to begin restrictions and began heating to let the enzymes cut. A lesson in what not to do, was offered as we began the heating cycle of restriction in the PCR blocks and he timing had been set to 35 seconds instead of 35 minutes, after which it heated to a kill cycle of 80 degrees and we had to reapply the enzymes, in case the enzymes had been denatured.
 
-
 
-
We had 6 individuals building the 4 sheets, 2 in redundancy.
 
-
 
-
The legend for the various parts is as follows...
 
-
<table>
 
-
<tr><td>1PO</td><td><bbpart>BBa_R0063</bbpart></td></tr>
 
-
<tr><td>2PO</td><td><bbpart>BBa_P0412</bbpart></td></tr>
 
-
<tr><td>3PO</td><td><bbpart>pSBIT3</bbpart></td></tr>
 
-
<tr><td>R (black marker)</td><td><bbpart>BBa_R0062</bbpart></td></tr>
 
-
<tr><td>I (black marker)</td><td><bbpart>BBa_I13507</bbpart></td></tr>
 
-
<tr><td>S (black marker)</td><td><bbpart>pSBIT3</bbpart></td></tr>
 
-
<tr><td>F (green marker)</td><td><bbpart>BBa_F2620</bbpart></td></tr>
 
-
<tr><td>I (green marker)</td><td><bbpart><BBa_I13507</bbpart></td></tr>
 
-
<tr><td>S (green marker)</td><td><bbpart>SBIC3</bbpart></td></tr>
 
-
<tr><td>R10 (green marker)</td><td><bbpart>BBa_R0010</bbpart></td></tr>
 
-
<tr><td>462 (green marker)</td><td><bbpart>BBa_I0462</bbpart></td></tr>
 
-
<tr><td>IT3 (green marker)</td><td><bbpart>pSBIT3</bbpart></td></tr>
 
-
<tr><td>A/R10 (green marker)</td><td><bbpart>BBa_R0010</bbpart></td></tr>
 
-
<tr><td>B/462 (green marker)</td><td><bbpart>BBa_I0462</bbpart></td></tr>
 
-
<tr><td>C/IT3 (green marker)</td><td><bbpart>pSBIT3</bbpart></td></tr>
 
-
</table>
 
-
 
-
Patrick cut parts <bbpart>BBa_r0063</bbpart> and <bbpart>BBa_p0412</bbpart>, and the plasmid backbone <bbpart>pSBIT3</bbpart>. <br>
 
-
Robert cut parts <bbpart>BBa_R0062</bbpart> and <bbpart>BBa_I13507</bbpart>, and the plasmid backbone <bbpart>pSBIT3</bbpart>. <br>
 
-
Collin/Miles cut parts <bbpart>BBa_F2620</bbpart>, <bbpart>BBa_I13507</bbpart> and the plasmid backbone <bbpart>pSBIC3</bbpart> (labeled w/green marker). <br>
 
-
The next step is to ligate them.
 
-
 
-
After which we had a round table discussion about what kind of projects we may follow up with and the process of using the NCBI databases to discover pre-existing sequence information related to our various ideas.
 
-
One idea we have discussed was the option of creating a smoother introductory curve for fellow DIY-Bio commmunity members and the creation of home-brewed enzymes that might be to pricey for the amateur scientists.
 
-
We ended the night with the beginning of the various ligation reactions, as seen above.
 
-
 
-
*Ligation Reaction for R10+462+IT3 in 'LIGATE 05X''
 
-
*Ligation Reaction for A/R10+B/462+C/IT3 in 'L/LIG''
 
-
*Ligation Reaction for F2620+I13507+IC3 with "Green Asetrisk"
 
-
*Ligation Reaction for R0062+I13507 in "Squiggly Sigil"
 
-
 
-
[[Team:Baltimore_US/Notebook/computation|biological computation]]
 
-
 
-
[[Team:Baltimore_US/Notebook/conjugation|conjugation notes]]
 

Latest revision as of 03:33, 28 October 2010

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