Team:Cornell/Notebook/Wetlab

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{{:Team:Cornell/Navbar}}
 
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=June=
 
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==June 10th-16th==
 
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===June 13th, Wednesday===
 
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*Set up [[Team:Cornell/Notebook/Phusion_PCR|PCR]] for four fragments of the nah operon as well as the pBMT-1 backbone, using primers designed to mutate cut-sites concurrently with Gibson Assembly. Also set up a PCR for the entire nah operon. Due to length of the fragments, a longer extension time was chosen.
 
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*If Gibson Assembly fails, but we are able to PCR the entire 10kb nah operon, an alternate method of mutation using three sequential site-directed mutageneses will be pursued.
 
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**''Work done by: Caleb, Claire, Dylan, Spencer, Steven, and Swati''
 
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===June 14th, Thursday===
 
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*PCR only amplified nah1, nah3, and nah4 - longer fragments (nah2, the full nah operon, and pBMT-1) were not identified on the PCR product gel. Set up another [[Team:Cornell/Notebook/Phusion_PCR|PCR]] with shorter extension time.
 
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===June 15th, Friday===
 
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*PCR of four out of five products visible on gel. Set up PCR of pBMT-1, final fragment required for Gibson Assembly of the nah operon.
 
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==June 17th-23rd==
 
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===June 17th, Sunday===
 
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*Successful PCR of pBMT-1 [[Team:Cornell/Notebook/Gel_purification| gel purified]].
 
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===June 19th, Tuesday===
 
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*Ran [[Team:Cornell/Notebook/Gibson_assembly|Gibson Assembly]] of nah operon fragments into pBMT-1 backbone and [[Team:Cornell/Notebook/Transformation_ecoli | transformed]] into DH5a electrocompotent ''E. coli'' cells.
 
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*Set up [[Team:Cornell/Notebook/Phusion_PCR|PCR]] to amplify the Gibson Assembly products.
 
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**''Work done by: Dylan and Swati''
 
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===June 20th, Wednesday===
 
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*Set up a [[Team:Cornell/Notebook/Digestion|digestion]] of the PCR of Gibson Assembly products and ran the digested products on a gel to see if Gibson worked.
 
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*Three colonies on plates of DH5a transformed with Gibson Assembly product. Made liquid cultures to miniprep and sequence.
 
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**''Work done by: Dylan and Swati''
 
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===June 22nd, Friday===
 
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*[[Team:Cornell/Notebook/Miniprep | Miniprepped]] directly transformed Gibson Assembly product for sequencing using the the Gibson nah1F and nah4R primers (each w/ 20 bp overhangs).
 
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*Ran undigested miniprep with [[Team:Cornell/Notebook/Gel_electrophoresis|gel electrophoresis]], looking for large bands corresponding to supercoiled DNA. The gel shows distinct bands for all three lanes. We interpreted this to mean that we got product. Submitted for [[Team:Cornell/Notebook/Sequencing|sequencing]]
 
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::[[File:Cornell2012_0621_Gibson-entire-plasmid.jpg|600px]]
 
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==June 24th-30th==
 
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===June 27th, Wednesday===
 
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[[Image:2012_627_RafDylanGelMaking.jpg|thumb|right|Rafael and Dylan making an agarose gel.]]
 
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*Ran digest of gibson-assembled nah operon with [[Team:Cornell/Notebook/Gel_electrophoresis|gel electrophoresis]]
 
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===June 28th, Thursday===
 
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[[Image:2012_6_28_StevenArchieGelLoading.jpg|thumb|right|Stephen and Archie Gel purifying our arsR construct]]
 
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*Gel purified arsR construct
 
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===June 29th, Friday===
 
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* [[Team:Cornell/Notebook/Vent_PCR|Vent PCR]] at 11:00 (DPW)
 
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** Amplifying both previous Phusion PCR band and original p21 template
 
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** Dylan's magic triple anneal method (55/60/63)
 
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* Gel purified PCR product from Phusion template (~1:20 pm) (DPW)
 
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** Quantified product at  22.4 ng/uL
 
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** Set up digestion of p21 PCR product with EcoRI-HF and AscI (~9:00 pm).
 
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*** 22 ng/uL --> 45.5 uL sample for 1 ug digest
 
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*** Buffer 4
 
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** Ran digestion on gel. (~11:00 pm)
 
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** Sliced out relevant band on gel, stored overnight at -20.
 
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<br>
 
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* [[Team:Cornell/Notebook/Miniprep|Miniprep]]ped overnight cultures of PL14-PL20 (~1:00 pm, STC)
 
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** Using C1015 rotor, 6666 x g, the Corning culture tubes only fit in the centrifuge with the lids off
 
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<br>
 
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* Made [[Team:Cornell/Notebook/LB|LB]], 3x 60 mL in 100 mL bottles (~ 3:00pm, SS)
 
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* Made [[Team:Cornell/Notebook/LB|LB Agar]], 4 x 250 mL LB Agar in 500 mL bottles (~3:00, CS)
 
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* [[Team:Cornell/Notebook/Autoclave|Autoclave]]d LB, LB Agar, and milliQ (~3:30 pm, SS)
 
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* Made [[Team:Cornell/Notebook/LB|LB]] plates with Kan (~6:30 pm, CMR)
 
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<br>
 
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* CUGEM movie outing at 8:00 pm.
 
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<br>
 
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* [[Team:Cornell/Notebook/Phusion_PCR|Phusion PCR]] at 10:00 pm (DPW)
 
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** Dylan's magic triple anneal method (57/65/70, 35 cycles total)
 
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** Amplifying nah operon from Gibson 1
 
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** Appending BioBrick cutsites for ligation into pSB3C5
 
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<br>
 
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===June 30th, Saturday===
 
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* Took PCR out of thermal cycler at 9:00 am (DPW)
 
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** Set up gel using NEB 100bp and 2-log ladders (10:00am)
 
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** Gel extracted PCR product, quantified at ~10ng/uL
 
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** Set up new [[Team:Cornell/Notebook/Phusion_PCR|Phusion PCR]] using Gibson 1 as template
 
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*** Dylan's magic three-anneal method (57.6/65/72)
 
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*** Extension time of 3 min.
 
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<br>
 
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* Continued gel extraction of p21 PCR digest from previous day (SS)
 
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* Set up ligation of p21 PCR digest extraction and dephosphorylated pBBRBB+mtrB (11:11am, SS)
 
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** Desalted ligation using Millipore membrane paper
 
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** Transformed 2 electrocompetent DH5alpha stocks at 5:30 pm and 5:50 pm, respectively.
 
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** Observed time constants for electroporation of 4.38 ms and 4.24 ms, respectively
 
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** Let cells recover for 1 hour, plated on LB + Kan.
 
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<br>
 
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* Set up two ligations of pSB3C5 into [[Team:Cornell/Notebook/Transformation_shewanella|PNNL]] electrocompetent Shewanella strain JG700 (6:30 pm, Sp.C and St.C)
 
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** First transformation performed at usual PNNL voltage of 0.75 kV (time constant of 9.30 ms)
 
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** Second transformation performed at [[Team:Cornell/Notebook/Transformation_shewanella|Myers and Myers]] specification of 0.55 kV (time constant of 9.34 ms).
 
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<br>
 
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=July=
 
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=August=
 

Latest revision as of 06:40, 26 October 2012