Team:Duke/Notebook/July

From 2014.igem.org

(Difference between revisions)
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<div class="obj">Objective: Create pTet-anti-tracrRNA</div>
<div class="obj">Objective: Create pTet-anti-tracrRNA</div>
<div class="lab">
<div class="lab">
-
 
+
<p> Digest of anti-tracrRNA PCR</p>
 +
<ul>
 +
<li> with XbaI, PstI-HF, and DpnI</li>
 +
<li> 3 hrs at 37C</li>
 +
<li> 60 uL DNA in 100 uL total reaction</li>
 +
</ul>
 +
<p> PCR Cleanup of anti-tracrRNA PCR digest and pSB1C3-R0040 digest</p>
 +
<ul>
 +
<li> Concentrations</li>
 +
<ul>
 +
<li> anti-tracrRNA: 100 ng/uL</li>
 +
<li> pSB1C3-R0040: 35 ng/uL</li>
 +
</ul>
 +
</ul>
 +
<p> Ligation of anti-tracrRNA and pSB1C3-R0040</p>
 +
<ul>
 +
<li> 100 ng = 3 uL pSB1C3-R0040 cut with SpeI/PstI</li>
 +
<li> 15 ng = 0.15 uL anti-tracrRNA PCR cut with XbaI/PstI/DpnI</li>
 +
<li> Experimental, Backbone only, and Insert only</li>
 +
<li> Transformed via heat shock into DH5alphas and plated on LB+Cm</li>
 +
</ul>
</div>
</div>
<div class="obj">Objective: Switch dCas9-tracrRNA into pSB1C3</div>
<div class="obj">Objective: Switch dCas9-tracrRNA into pSB1C3</div>
<div class="lab">
<div class="lab">
-
 
+
<p> Plate results:</p>
 +
<ul>
 +
<li> Experimental: 8 colonies</li>
 +
<li> BO Control: 4 colonies</li>
 +
<li> IO Control: 7 colonies</li>
 +
</ul>
 +
<p> Culture colonies</p>
 +
<ul>
 +
<li> 4 copies of potential pSB1C3-dCas9-tracrRNA construct</li>
 +
</ul>
 +
<p> Digest of dCas9-tracrRNA PCR and heat inactivation</p>
 +
<ul>
 +
<li> Digest with DpnI</li>
 +
<li> 22 uL DNA in 30 uL reaction</li>
 +
<li> 1 hr at 37C, then 30 mins at 80C to heat-inactivate</li>
 +
<li> assumed concentration 20 ng/uL</li>
 +
</ul>
 +
<p> PCR Cleanup of pSB1C3 digest</p>
 +
<ul>
 +
<li> 2 tubes of gel-extracted and cleaned pSB1C3 cut with XbaI and PstI</li>
 +
<li> 11 ug original yields 309.6 ng/uL in 20 uL “superclean”</li>
 +
</ul>
 +
<p> Ligation of dCas9-tracrRNA PCR and pSB1C3</p>
 +
<ul>
 +
<li> 150 ng = 0.5 uL pSB1C3 cut with XbaI and PstI</li>
 +
<li> 100 ng = 5 uL dCas9-tracrRNA PCR cut with Xbal/PstI/DpnI</li>
 +
<li> Experimental, Backbone only, and Insert only</li>
 +
<li> Transformed via heat shock into DH5alphas and plated on LB+Cm</li>
 +
</ul>
</div>
</div>
<div class="obj">Objective: Create pSB1C3-R0011-I13500 as destination for mCherry G-block</div>
<div class="obj">Objective: Create pSB1C3-R0011-I13500 as destination for mCherry G-block</div>
<div class="lab">
<div class="lab">
-
 
+
<p> Plate results:</p>
 +
<ul>
 +
<li> Lawn of colonies on Experimental and BO control</li>
 +
<li> No colonies on IO control</li>
 +
</ul>
 +
<p> Digest of pSB1C3-R0011</p>
 +
<ul>
 +
<li> With SpeI, PstI, and CIP</li>
 +
<li> 50 uL DNA in 100 uL reaction</li>
 +
<li> 2.5 hrs at 37C</li>
 +
</ul>
 +
<p> PCR Cleanup of pSB1C3-R0011 digest and I13500 digest</p>
 +
<ul>
 +
<li> pSB1C3-R0011 concentration 175 ng/uL</li>
 +
<li> I13500 (from previous digestion and extraction)</li>
 +
<ul><li> 2.3 ug original yields 124 ng/uL in 20 uL “superclean”</li></ul>
 +
</ul>
 +
<p> Ligation of I13500 and pSB1C3-R0011</p>
 +
<ul>
 +
<li> 100 ng = 0.6 uL pSB1C3-R0011 cut with SpeI/PstI/CIP</li>
 +
<li> 150 ng = 1.2 uL I13500 cut with XbaI/PstI</li>
 +
<li> Experimental, Backbone only, and Insert only</li>
 +
<li> Transformed via heat shock into DH5alphas and plated on LB+Cm</li>
 +
</ul>
</div>
</div>
<div class="obj">Objective: Switch K608012 into pSB6A1</div>
<div class="obj">Objective: Switch K608012 into pSB6A1</div>
<div class="lab">
<div class="lab">
-
 
+
<p> Plate results:</p>
 +
<ul>
 +
<li> 2 colonies on experimental plate</li>
 +
<li> 1 colony on BO, no colonies on IO</li>
 +
</ul>
 +
<p> Cultured colonies</p>
 +
<ul>
 +
<li> 2 colonies of potential pSB6A1-K608012 construct</li>
 +
</ul>
 +
<p> PCR Cleanup of pSB6A1 digest and K608012 digest</p>
 +
<ul>
 +
<li> pSB6A1, 2 tubes gel extracted and cleaned</li>
 +
<ul><li> 10 ug original yields 203 ng/uL in 30 uL</li></ul>
 +
<li> K608012, 3 tubes gel extracted and cleaned</li>
 +
<ul><li> 4 ug original yields 73.0 ng/uL in 30 uL</li></ul>
 +
</ul>
 +
<p> Ligation of K608012 and pSB6A1</p>
 +
<ul>
 +
<li> 100 ng = 0.5 uL pSB6A1 cut with EcoRI and SpeI</li>
 +
<li> 150 ng = 2 uL K608012 cut with EcoRI and SpeI</li>
 +
<li> Experimental, Backbone only, and Insert only</li>
 +
<li> Transformed via heat shock into DH5alphas and plated on LB+Amp</li>
 +
</ul>
</div>
</div>
</div>
</div>
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<div class="obj">Objective: Create pTet-anti-tracrRNA</div>
<div class="obj">Objective: Create pTet-anti-tracrRNA</div>
<div class="lab">
<div class="lab">
-
 
+
<p> Plate results:</p>
 +
<ul>
 +
<li> Experimental: over 1000 colonies</li>
 +
<li> BO control had ~500 colonies, IO control had ~50 colonies</li>
 +
</ul>
 +
<p> Cultured colonies</p>
 +
<ul>
 +
<li> 4 copies of potential pSB1C3-R0040-anti-tracrRNA</li>
 +
</ul>
</div>
</div>
<div class="obj">Objective: Switch dCas9-tracrRNA into pSB1C3</div>
<div class="obj">Objective: Switch dCas9-tracrRNA into pSB1C3</div>
<div class="lab">
<div class="lab">
-
 
+
<p> Plate results: </p>
 +
<ul>
 +
<li> Experimental: 12-15 colonies</li>
 +
<li> BO control had 3 colonies, IO control had ~30 colonies</li>
 +
</ul>
 +
<p> Minipreps</p>
 +
<ul>
 +
<li> 4 copies of potential pSB1C3-dCas9-tracrRNA construct</li>
 +
<li> From 7/14 ligation</li>
 +
<li> concentrations: 537.2, 45.4, 79.1, and 71.5 ng/uL</li>
 +
<ul><li> Only one has normal concentration, others very low</li></ul>
 +
</ul>
 +
<p> Analytical digest of pSB1C3-dCas9-tracrRNA constructs:</p>
 +
<ul>
 +
<li> 4 copies with NheI/XbaI</li>
 +
</ul>
 +
<p> Agarose gel of digests:</p>
 +
<ul>
 +
<li> Lanes 1-2: pSB6A1-K608012 with MfeI/XbaI (expected 4.1, 0.6 kb bands)</li>
 +
<li> Lanes 3-6: pSB1C3-dCas9-tracrRNA with NheI/XbaI (expected 5.0, 1.5 kb bands)</li>
 +
<li> Results: gel was fuzzy and unclear</li>
 +
<ul>
 +
<li> lanes 2,3,5,6 clearly incorrect: 1 band ~2.0 kb</li>
 +
<li> lane 1 had one fuzzy band around 4-5 kb (could be incomplete digest)</li>
 +
<li> lane 4 had band around 5 kb with smear above (could be incomplete digest)</li>
 +
</ul>
 +
</ul>
 +
<p> New analytical digest of pSB1C3-dCas9-tracrRNA construct</p>
 +
<ul>
 +
<li> Only copy #2 (showed potential in previous digest</li>
 +
<li> With KpnI/SpeI for 2 hours at 37C</li>
 +
<li> Also put previous digest back in bath for 2 more hours</li>
 +
</ul>
 +
<p> Agarose gel of digests</p>
 +
<ul>
 +
<li> DETAILS</li>
 +
</ul>
</div>
</div>
<div class="obj">Objective: Create pSB1C3-R0011-I13500 as destination for mCherry G-block</div>
<div class="obj">Objective: Create pSB1C3-R0011-I13500 as destination for mCherry G-block</div>
<div class="lab">
<div class="lab">
-
 
+
<p> Plate results:</p>
 +
<ul>
 +
<li> ~500 colonies on experimental plate</li>
 +
<li> BO control had over 1000 colonies</li>
 +
<li> IO control had no colonies</li>
 +
</ul>
 +
<p> Cultured colonies</p>
 +
<ul>
 +
<li> 4 copies of potential pSB1C3-R0011-I13500 construct</li>
 +
</ul>
</div>
</div>
<div class="obj">Objective: Switch K608012 into pSB6A1</div>
<div class="obj">Objective: Switch K608012 into pSB6A1</div>
<div class="lab">
<div class="lab">
-
 
+
<p> Plate results:</p>
 +
<ul>
 +
<li> 0 colonies on experimental plate</li>
 +
<li> 4 colonies on BO control, 1 colony on IO control</li>
 +
</ul>
</div>
</div>
<div class="obj">Objective: Insert crRNAs into pdCas9</div>
<div class="obj">Objective: Insert crRNAs into pdCas9</div>
<div class="lab">
<div class="lab">
-
 
+
<p> Colony PCR of pdCas9-GFP3 plate</p>
 +
<ul>
 +
<li> Plate from 7/7/14</li>
 +
<li> 15 colonies plus pdCas9 miniprep as control</li>
 +
<li> double dipped in 50 uL Taq poly mix and 50 uL SOC</li>
 +
<li> Oligos pdCas9-up1 and pdCas9-dn1</li>
 +
<li> TALCOLONYPCR protocol with 64C anneal</li>
 +
</ul>
 +
<p> Agarose gel of colony PCR</p>
 +
<ul>
 +
<li> Expected to see higher band matching control in successful colonies</li>
 +
<li> lanes 1 and 17 are pdCas9 control</li>
 +
<li> assay looks helpful, successes in samples 3,5,6,8,9,12,13,15</li>
 +
</ul>
 +
<p> Cultured colonies</p>
 +
<ul>
 +
<li> Copies 3,5,6, and 8 from colony PCR in LB+Cm</li>
 +
</ul>
</div>
</div>
</div>
</div>

Revision as of 15:13, 15 August 2014

May 2014
Month 2 of Project
sun mon tue wed thu fri sat
1 2 3
4 5 6 7 8 9 10
11 12 13 14 15 16 17
18 19 20 21 22 23 24
25 26 27 28 29 30 31

June 2014
Month 3 of Project
sun mon tue wed thu fri sat
1 2 3 4 5 6 7
8 9 10 11 12 13 14
15 16 17 18 19 20 21
22 23 24 25 26 27 28
29 30

July 9

Objective: Insert crRNAs into pdCas9

Miniprep 40 cultures of potential crRNA inserts in pdCas9

  • Labeled with three numbers
    • Date of transformation - crRNA-GFPx - sample number

700uL of each culture saved to freeze in glycerol if colonies appear successful

  • Stored at 4C for the day

Analytical restriction digest of potential crRNA inserts

  • All 40 tubes + 2 pdCas9 tubes as control
  • 1 uL DNA in 10 uL digest for 2 hrs at 37C
  • SacI-HF and NheI-HF in cutsmart

Made and ran 1.5% agarose/TBE gels

  • To differentiate between small band differences
  • Gel 1:
    • 1. 2-log ladder
    • 2. pdCas9
    • 3-12. pdCas9-crRNA-GFP1 from 7/3 transformation
    • 13-22. pdCas9 -crRNA-GFP2 from 7/3 transformation
    • 23. pdCas9
    • 24. 2-log ladder
  • Gel 2:
    • 1. 2-log ladder
    • 2. pdCas9
    • 3-12. pdCas9-crRNA-GFP1 from 7/7 transformation
    • 13-22. pdCas9 -crRNA-GFP2 from 7/7 transformation
    • 23. pdCas9
    • 24. 2-log ladder
  • Expected results:
    • pdCas9 and successful inserts:
      • 3.1, 2.8, and 2.7 kb bands, plus 620 bp insert band
    • unsuccessful recircularizations:
      • 3.1, 2.8, and 2.7 kb bands, plus 585 bp insert band
  • Results:
    • Gel 1 appears to only be recircularized
    • Gel 2 has some promising inserts:
      • GFP1 samples 1,2, and 3 from 7/7 transformation
      • GFP2 samples 7,8, and 9 from 7/7 transformation
  • Glycerol stocks frozen for these six samples
  • Next Steps:
    • Run digest with BsaI to confirm that plasmids are not uncut pdCas9
    • Sequence to confirm presence of insert (using oligos ordered 7/8/14)
Objective: Obtain new backbones and switch inserts into new backbones

Miniprep 3 new backbones

  • pSB6A1-J04450 (3 copies)
    • concentrations 437.6, 483.9, and 450.1 ng/uL
  • pSB3K3-I20260 (3 copies)
    • concentrations 114.6, 120.0, and 97.3 ng/uL
  • pSB4K5-J04450 (3 copies)
    • concentrations 129.3, 165.9, and 155.1 ng/uL

Prep-scale digest of all 9 backbone tubes

  • 50 uL DNA in 60 uL total reaction
  • EcoRI-HF/Spe-HF in cutsmart
  • 3 hours at 37C

Agarose gel extraction of 3 backbones

  • Gel 1, Left: pSB6A1
  • Gel 1, Right: pSB3K3
  • Gel 2, Left: pSB4K5
  • All 3 lanes had 2 bands as expected
    • upper band (backbone) in 3K3 had messy trail behind it (not extracted)
  • All 180 uL from three tubes combined with 20 uL loading dye in x-large gel well
  • top band extracted from all 3 plasmids, split into 2 tubes each, stored at -20C

Streak plate from frozen stock

  • pSB1C3-K608012
  • In order to switch into pSB6A1
Objective: Remake new version of pDGC3

Transformation from iGEM distribution kit plates

  • Plate 2-6D: pSB1C3-BBa_R0011
    • Engineered Lac promoter (not affected by glucose)
  • Plate 3-15O: pSB1C3-BBa_I13500
    • Strong RBS-GFP
  • Plated on LB+Cm

July 10

Objective: Obtain backbones and switch parts into new backbones

Gel cleanup of 3 backbones with Zymoclean prep kit

  • Some tubes had to be divided into two samples for cleanup
  • Final elution was 20 uL each into 2-3 tubes per backbone
  • Nanodrops looked unclean: Most had high peak around 220-240 nm
    • pSB6A1: 300mg + 120 mg gel = 230.4 ng/uL
      • Peak ~220, then hump ~260
    • pSB6A1: 270 mg gel = 220 ng/uL
      • Peak, then hump as before
    • pSB3K3: 320 mg gel = 53.9 ng/uL
      • No clear sign of DNA in graph
    • pSB3K3: 230 mg gel = 20 ng/uL
      • No DNA
    • pSB3K3: 130 mg gel = 72 ng/uL
      • Possibly DNA, best option but may not be useful
    • pSB4K5: 290 mg gel = 43.4 ng/uL
      • No clear sign of DNA in graph
    • pSB4K5: 320 mg gel = 117.3 ng/uL
      • Possibly DNA, best option but may not be useful

Culture 3 colonies of pSB1C3-K608012

  • In order to switch into pSB6A1
Objective: Insert crRNAs into pdCas9

Analytical Digest of promising crRNA inserts

  • XbaI/BsaI digest
  • In order to confirm that plasmids are not uncut pdCas9
  • Samples 7-1-1,2,3 and 7-2-7,8,9 (6 tubes) plus pdCas9 as control

Agarose gel of digest results:

  • 1. pdCas9
  • 2-4. pdCas9-crRNA-GFP1, samples 1,2,3
  • 5-7. pdCas9-crRNA-GFP2, samples 7,8,9
  • Expected:
    • 2 bands at 4.2 and 5.1 kb in pdCas9
    • 1 band at 9.3 kb in successful plasmids with inserts
  • Results:
    • pdCas9 appears to be an incomplete digest, showing 2 small and 1 large band
    • Lack of any trace of smaller bands in 6 experimental samples indicates successful inserts.
Objective: Make pDGC3

Culture 3 colonies each from pSB1C3-R0011 and pSB1C3-I13500

Objective: Test effectiveness of DH5alpha-Z1 strain
Mitch and Sargis

Culture pSB1C3-I13521 (pTet-RFP)

  • For flow
  • In aTc and non-aTc

July 11

Objective: Switch K608012 into pSB6A1

Miniprep 3 copies of pSB1C3-K608012

  • concentrations 361, 324, 362 ng/uL

Prep-scale digest of pSB1C3-K608012

  • 2 miniprep tubes, 50 uL DNA in 100 uL each
  • With EcoRI and SpeI
  • 2+ hrs at 37C

Gel extraction and cleanup to isolate K608012

  • Cut lower band
  • Zymoclean prep kit
  • Each of 2 bands divided into two tubes during cleanup
    • 1A: 280 mg =
    • 1B: 240 mg =
    • 2A: 200 mg =
    • 2B: 200 mg = 62.5 ng/uL (20 uL)
  • Graphs on nanodrop did not look ideal: peak lower than usual
Objective: Create pSB1C3-R0011-I13500 as destination of mCherry G-block

Miniprep pSB1C3-R0011 and pSB1C3-I13500

  • 3 copies each
  • Concentrations
    • pSB1C3-R0011: 181, 229, 194 ng/uL
    • pSB1C3-I13500: 321.5, 228, 300.4 ng/uL

Prep scale digests of two tubes from each miniprep

  • pSB1C3-R0011 with SpeI/PstI
    • no extraction necessary
  • pSB1C3-I13521 with XbaI/PstI
    • to extract I13521 insert
  • 100 uL total reaction per tube
  • 2-3 hrs at 37C

Agarose gel of pSB1C3-I13500 XbaI/PstI digests

  • Intended for gel extraction
  • Expected 2 bands, but only one present
  • No extraction performed

Analytical agarose gel of pSB1C3-R0011 SpeI/PstI digests

  • Single band appears correct
  • see below for gel picture

PCR cleanup of pSB1C3-R0011 SpeI/PstI digests

  • concentrations 124.8, 157.3 ng/uL (30 uL each)
Objective: Switch dCas9-tracrRNA into pSB1C3

Miniprep pdCas9

  • concentration 167.4 ng/uL

Prep-scale digest of pSB1C3-R0011

  • 1 miniprep with XbaI/PstI
  • To extract pSB1C3 backbone

Agarose gel of pSB1C3-R0011 XbaI/PstI digest

  • Intended for gel extraction
  • Expected 2 bands, but only one present
  • No extraction performed

PCR of dCas9-tracrRNA and anti-tracrRNA

  • 4 tubes each, with pdCas9 as template in 0, 0.4, 0.7, and 1.0 uL quantities
  • oligos dCas9tracr-up and dCas9tracr-dn for dCas9-tracrRNA PCR
  • oligos dCas9tracr-up and tracrRNA-dn for anti-tracrRNA PCR
  • Q5 polymerase, with 64C annealing and 2 min extension

Agarose gel of PCR (and digest) results:

  • Lanes 1-4: dCas9-tracrRNA PCR (0, 0.4, 0.7, 1.0 uL template)
  • Lanes 5-8: tracrRNA PCR (0, 0.4, 0.7, 1.0 uL template)
  • Lanes 9-10: pSB1C3-R0011 SpeI/PstI digests
  • Results:
    • dCas9-tracr PCR appears correct, band ~4 kb in 3 lanes
    • tracrRNA PCR unclear: strong primer-sized band may be correct, faint bands ~4 kb indicate off-target extension.
      • tracrRNA PCR should be done with shorter extension time

PCR cleanup of dCas9-tracrRNA PCR

  • Concentration >200 ng/uL
Objective: Test BsaI and XbaI enzymes

Analytical digest of dCas9

  • One tube with BsaI/EcoRI
  • One tube with XbaI/EcoRI
    • XbaI from tube with exp. 5/14
  • One tube with XbaI/EcoRI
    • XbaI from tube with exp. 2/15

Agarose gel of digest:

  • 1. BsaI/EcoRI: expected 3 bands at 2.7, 2.9, and 3.5 kb
  • 2. XbaI (5/14) / EcoRI: expected 3 bands at 5.7, 2.1, 1.4 kb
  • 3. XbaI (2/15) / EcoRI: expected 3 bands at 5.7, 2.1, 1.4 kb
  • Results: Lanes 1 and 3 look as expected. Lane two has one extra band at 3.5 kb corresponding to partial digestion with XbaI. 5/14 XbaI tube is ineffective and has been thrown out

July 14

Objective: insert crRNAs into pdCas9

Sequencing Order #1608

    • BigDye reaction with BD buffer 1.1
    • pdCas9-crRNA_GFP1 sample 7-1 w/ pdCas9up1
    • pdCas9-crRNA_GFP1 sample 7-2 w/ pdCas9up1
    • pdCas9-crRNA_GFP1 sample 7-3 w/ pdCas9up1
    • pdCas9-crRNA_GFP2 sample 7-7 w/ pdCas9up1
    • pdCas9-crRNA_GFP2 sample 7-8 w/ pdCas9up1
    • pdCas9-crRNA_GFP2 sample 7-9 w/ pdCas9up1
    • pdCas9-crRNA_GFP3 sample 3 w/ pdCas9up1
    • pdCas9-crRNA_GFP1 sample 7-1 w/ pdCas9dn1
    • pdCas9-crRNA_GFP1 sample 7-2 w/ pdCas9dn1
    • pdCas9-crRNA_GFP1 sample 7-3 w/ pdCas9dn1
    • pdCas9-crRNA_GFP2 sample 7-7 w/ pdCas9dn1
    • pdCas9-crRNA_GFP2 sample 7-8 w/ pdCas9dn1
    • pdCas9-crRNA_GFP2 sample 7-9 w/ pdCas9dn1
    • pdCas9-crRNA_GFP3 sample 3 w/ pdCas9dn1

Results:

    • pdCas9-crRNA_GFP1 use sample 7-1
    • pdCas9-crRNA_GFP2 use sample 7-9
    • pdCas9-crRNA_GFP3 need to find more colonies
Objective: Create pSB1C3-R0011-I13500 as destination of mCherry G-block

Prep scale digest of pSB1C3-I13500 with XbaI/PstI

  • Tube 3 from 7/11/14 miniprep
  • To extract both I13500 and pSB1C3 backbone
  • 100 uL reaction with 50 uL DNA in cutsmart

Agarose gel extraction and cleanup of pSB1C3 and I13500

  • Top band (~2kb): pSB1C3
  • Bottom band (~1kb): I13500
  • Zymoclean prep kit
  • Concentrations:
    • pSB1C3: 319 ng/uL in 20 uL (dirty)
    • I13500: 91.2 ng/uL in 20 uL (dirty)

Ligation of pSB1C3-R0011 and I13500

  • 100ng = 0.7 uL pSB1C3-R0011 (#2) cut with SpeI/PstI on 7/11
  • 150ng = 1.8 uL I13500 cut with XbaI/PstI on 7/14
  • Experimental, BO control, and IO control
  • rt for 1 hr
  • Heat shock transformation into DH5alpha and plated on LB+Cm
Objective: Switch K608012 into pSB6A1

Ligation of pSB6A1 and K608012

  • 100 ng = 0.5 uL pSB6A1 (“Yellow” sample) cut with EcoRI/SpeI on 7/9
  • 150 ng = 2.5 uL K608012 (#2B) cut with EcoRI/SpeI on 7/11
  • Experimental, BO control, and IO control
  • rt for 1 hr
  • Heat shock transformation into DH5alpha and plated on LB+Amp
Objective: Switch dCas9-tracrRNA into pSB1C3

Prep scale digests

  • dCas9-tracr PCR with XbaI/PstI (no extraction)
  • pSB1C3-K608012 (tube 3) with XbaI/PstI (to obtain pSB1C3)
  • 100 uL reaction each with 50 uL DNA in cutsmart

PCR cleanup of dCas9-tracr digest

  • Qiagen miniprep kit
  • Concentration 38.1 ng/uL in 30 uL

Agarose gel extraction and cleanup of pSB1C3

  • gel order: left K608012, right I13500
  • extracted pSB1C3, top band of K608012 (~2 kb)
  • Zymoclean kit
  • Concentration 127.9 ng/uL in 20 uL (dirty)

Ligation of pSB1C3 and dCas9-tracrRNA PCR

  • 100 ng = 3 uL dCas9-tracrRNA PCR cut with XbaI/PstI on 7/14
  • 150 ng = 0.6 uL pSB1C3 (from I13500) cut with XbaI/PstI on 7/14
  • Experimental, BO control, and IO control
  • rt for 1 hr
  • Heat shock transformation into DH5alpha and plated on LB+Cm
Objective: Create pTet-anti-tracrRNA

Prep-scale digest of pSB1C3-R0040

  • With SpeI/PstI (no extraction necessary)
  • 100 uL reaction with 50 uL DNA in cutsmart
  • 4 hrs at 37C

PCR anti-tracrRNA from pdCas9

  • Oligos dCas9tracr-up and tracrRNA-dn
  • 0, 0.4, 0.7, and 1.0 uL pdCas9 template in 50 uL reactions
  • Q5 polymerase
  • annealed at 64C, 20 sec extension

Agarose gel of anti-tracrRNA PCR

  • Results: only 1.0 uL template lane appeared to amplify
    • Need to make more using this template concentration

PCR anti-tracrRNA from pdCas9

  • Oligos dCas9tracr-up and tracrRNA-dn
  • 1.0 uL pdCas9 template in each 50 uL reaction
  • 8 tubes with Q5 polymerase
  • annealed at 64C, 20 sec extension

Agarose gel of anti-tracrRNA PCR and pSB1C3-R0040 digest

  • Lanes 1-8: anti-tracrRNA PCR
  • Lane 9: R0040 digest
  • Results:
    • PCR appears to work in all lanes (band size ~0.1 kb)
    • R0040 digest single band appears correct

PCR cleanup of anti-tracrRNA PCR and pSB1C3-R0040

  • Concentrations:
    • anti-tracrRNA: 83.3 ng/uL in 30 uL
    • pSB1C3-R0040: 25 ng/uL in 30 uL

July 15

Objective: Create pTet-anti-tracrRNA

Digest of anti-tracrRNA PCR

  • with XbaI, PstI-HF, and DpnI
  • 3 hrs at 37C
  • 60 uL DNA in 100 uL total reaction

PCR Cleanup of anti-tracrRNA PCR digest and pSB1C3-R0040 digest

  • Concentrations
    • anti-tracrRNA: 100 ng/uL
    • pSB1C3-R0040: 35 ng/uL

Ligation of anti-tracrRNA and pSB1C3-R0040

  • 100 ng = 3 uL pSB1C3-R0040 cut with SpeI/PstI
  • 15 ng = 0.15 uL anti-tracrRNA PCR cut with XbaI/PstI/DpnI
  • Experimental, Backbone only, and Insert only
  • Transformed via heat shock into DH5alphas and plated on LB+Cm
Objective: Switch dCas9-tracrRNA into pSB1C3

Plate results:

  • Experimental: 8 colonies
  • BO Control: 4 colonies
  • IO Control: 7 colonies

Culture colonies

  • 4 copies of potential pSB1C3-dCas9-tracrRNA construct

Digest of dCas9-tracrRNA PCR and heat inactivation

  • Digest with DpnI
  • 22 uL DNA in 30 uL reaction
  • 1 hr at 37C, then 30 mins at 80C to heat-inactivate
  • assumed concentration 20 ng/uL

PCR Cleanup of pSB1C3 digest

  • 2 tubes of gel-extracted and cleaned pSB1C3 cut with XbaI and PstI
  • 11 ug original yields 309.6 ng/uL in 20 uL “superclean”

Ligation of dCas9-tracrRNA PCR and pSB1C3

  • 150 ng = 0.5 uL pSB1C3 cut with XbaI and PstI
  • 100 ng = 5 uL dCas9-tracrRNA PCR cut with Xbal/PstI/DpnI
  • Experimental, Backbone only, and Insert only
  • Transformed via heat shock into DH5alphas and plated on LB+Cm
Objective: Create pSB1C3-R0011-I13500 as destination for mCherry G-block

Plate results:

  • Lawn of colonies on Experimental and BO control
  • No colonies on IO control

Digest of pSB1C3-R0011

  • With SpeI, PstI, and CIP
  • 50 uL DNA in 100 uL reaction
  • 2.5 hrs at 37C

PCR Cleanup of pSB1C3-R0011 digest and I13500 digest

  • pSB1C3-R0011 concentration 175 ng/uL
  • I13500 (from previous digestion and extraction)
    • 2.3 ug original yields 124 ng/uL in 20 uL “superclean”

Ligation of I13500 and pSB1C3-R0011

  • 100 ng = 0.6 uL pSB1C3-R0011 cut with SpeI/PstI/CIP
  • 150 ng = 1.2 uL I13500 cut with XbaI/PstI
  • Experimental, Backbone only, and Insert only
  • Transformed via heat shock into DH5alphas and plated on LB+Cm
Objective: Switch K608012 into pSB6A1

Plate results:

  • 2 colonies on experimental plate
  • 1 colony on BO, no colonies on IO

Cultured colonies

  • 2 colonies of potential pSB6A1-K608012 construct

PCR Cleanup of pSB6A1 digest and K608012 digest

  • pSB6A1, 2 tubes gel extracted and cleaned
    • 10 ug original yields 203 ng/uL in 30 uL
  • K608012, 3 tubes gel extracted and cleaned
    • 4 ug original yields 73.0 ng/uL in 30 uL

Ligation of K608012 and pSB6A1

  • 100 ng = 0.5 uL pSB6A1 cut with EcoRI and SpeI
  • 150 ng = 2 uL K608012 cut with EcoRI and SpeI
  • Experimental, Backbone only, and Insert only
  • Transformed via heat shock into DH5alphas and plated on LB+Amp

July 16

Objective: Create pTet-anti-tracrRNA

Plate results:

  • Experimental: over 1000 colonies
  • BO control had ~500 colonies, IO control had ~50 colonies

Cultured colonies

  • 4 copies of potential pSB1C3-R0040-anti-tracrRNA
Objective: Switch dCas9-tracrRNA into pSB1C3

Plate results:

  • Experimental: 12-15 colonies
  • BO control had 3 colonies, IO control had ~30 colonies

Minipreps

  • 4 copies of potential pSB1C3-dCas9-tracrRNA construct
  • From 7/14 ligation
  • concentrations: 537.2, 45.4, 79.1, and 71.5 ng/uL
    • Only one has normal concentration, others very low

Analytical digest of pSB1C3-dCas9-tracrRNA constructs:

  • 4 copies with NheI/XbaI

Agarose gel of digests:

  • Lanes 1-2: pSB6A1-K608012 with MfeI/XbaI (expected 4.1, 0.6 kb bands)
  • Lanes 3-6: pSB1C3-dCas9-tracrRNA with NheI/XbaI (expected 5.0, 1.5 kb bands)
  • Results: gel was fuzzy and unclear
    • lanes 2,3,5,6 clearly incorrect: 1 band ~2.0 kb
    • lane 1 had one fuzzy band around 4-5 kb (could be incomplete digest)
    • lane 4 had band around 5 kb with smear above (could be incomplete digest)

New analytical digest of pSB1C3-dCas9-tracrRNA construct

  • Only copy #2 (showed potential in previous digest
  • With KpnI/SpeI for 2 hours at 37C
  • Also put previous digest back in bath for 2 more hours

Agarose gel of digests

  • DETAILS
Objective: Create pSB1C3-R0011-I13500 as destination for mCherry G-block

Plate results:

  • ~500 colonies on experimental plate
  • BO control had over 1000 colonies
  • IO control had no colonies

Cultured colonies

  • 4 copies of potential pSB1C3-R0011-I13500 construct
Objective: Switch K608012 into pSB6A1

Plate results:

  • 0 colonies on experimental plate
  • 4 colonies on BO control, 1 colony on IO control
Objective: Insert crRNAs into pdCas9

Colony PCR of pdCas9-GFP3 plate

  • Plate from 7/7/14
  • 15 colonies plus pdCas9 miniprep as control
  • double dipped in 50 uL Taq poly mix and 50 uL SOC
  • Oligos pdCas9-up1 and pdCas9-dn1
  • TALCOLONYPCR protocol with 64C anneal

Agarose gel of colony PCR

  • Expected to see higher band matching control in successful colonies
  • lanes 1 and 17 are pdCas9 control
  • assay looks helpful, successes in samples 3,5,6,8,9,12,13,15

Cultured colonies

  • Copies 3,5,6, and 8 from colony PCR in LB+Cm