Joshua Hombrebueno

Joshua Hombrebueno

Aug 04, 2016

Group 6 Copy 80
0

Week of 7/11 - 7/17


7/11

  • Ran PCR on the construct (5x) 
  • PCR'ed 84.2 ng/ml construct
  • 5 replicates made using Phire Polymerase
  • Used the following program for the thermocycler: 
    Thermocycler ProgramStepTemperature (Degrees C)Duration (seconds)
    Initial Denaturation9830
    Denaturation9820
    Annealing665
    Extension7230
    Final Extension7260
    Hold4Hold
    After step 4, return to step 2. Repeat steps 2-4 thirty-five times before continuing to step 5 and on.
    Water19.5 uL
    Phire Polymerase25 uL
    Template0.5 uL
    Forward Primer2.5 uL
    Reverse Primer2.5 uL
  • Restreaking of YEP352GAP transformed cells for miniprep
  • Restreaking placed in incubator at 12am

7/12

  • Made gel for electrophoresis of PCR construct 
  • Thermocycler Program: Same as PCR from 7/11
    Q5 Rx Buffer10 uL
    10nM dNTPs1 uL
    10 uM Forward Primer2.5 uL
    10 uM Reverse Primer2.5 uL
    Template (Q5 PCR Pw.1 for 6/30/16)0.5 uL
    Q5 Polymerase2.5 uL
    Water33 uL
  • LB liquid culture (3ml with 3ul of ampicillin)
  • Loaded 10ul Ladder DNA.
  • Loaded 1ul dye + 5ul PCR product
  • Ran gel at 115V
  • Checked gel ladder → faint, no band for the PCR product
  • Made new gel, loaded with the same amount of reagents as before → ran at 90V → No ladder band
  • Ran it again at 115V → visible ladder, no PCR band
  • Preparing a gel to run ladder and construct that previously showed a strong band → used this to diagnose a problem with gel setup. Ran TDGF1 152.9 Phire Child. Lane 1 is ladder, Lane 2 is that construct (10ul) with 2ul of dye
  • Setup new PCR using the 6/30/16 PCR construct
  1. 98°C → 30sec
  2. 98°C → 20sec
  3. 66°C → 5sec
  4. 72°C → 30sec
  5. 72°C → 1min
  6. 4°C → hold

7/13

  • Ran 5ul of PCR with ladder, cancer construct and vaccine construct → to diagnose problem with gel
  • Miniprep of Dean vector (3ml LB culture)
  • Purification of PCR product → nanodropped 16.4ug/ul
  • Nanodrop of:
  1. Yellow 7/13 construct NEB purified → 16.4ng/ml
  2. Blue gel purification → 48.7ng/ul
  3. Pink PCR purification 7/13 → 102.2ng/ul
  4. 7/13 -RK Vector 1 → 48.2ng/ul
  5. 7/13 -RK Vector 2 → 96.3ng/ul

7/14

Project Progress

Ran a gel PCR of TDGF-1

Lanes:

  1. Ladder
  2. PCR1
  3. PCR2
  4. PCR3
  5. Digest
  6. Digest Control
PCR of TDGF-1 IDT Construct
  • 3 reactions set up with the same setup as test 5 from 6/30
  • Annealing Temperature at 66°C for 5 seconds

7/15

  • Ran a gel on PCR'ed Construct
  • 1st gel failed → Samara poured a gel onto Brian's gel
  • All 3 PCR products worked → purified PCR → 30ul PCR product in each tube → 150ul building buffer
Nanodrop
    PCR TubeConcentration (ug/ul)
    PCR #115.6
    PCR #212.3
    PCR #311.6
  • PCR IDT construct and 1 PCRed construct with 130.9 ug/ul concentration

7/17

  • Epoch purification of one of PCR products from 7/14
  • Same protocol at 7/15
  • Approx. 10ul of DNA in tube for PCR use
  • 30ul of elution buffer used
  • Elution step centrifuged for 2 minutes at 13000RPM
Ran a Nanodrop
    ContentConcentration (ug/ul)260/280
    Sample I22.21.79
    Sample II22.91.79
IDT Construct Digest (10ul Reaction)
    ContentExperiment (ul)Control (ul)
    H
    2
    O
    3.54.5
    10X Cutsmart11
    XhoI.5X
    PvoII-HF.5X
    DNA (22.2ug/ul)4.54.5
YEP352GAP Vector Digest (10ul Reaction)
    ContentExperiment (ul)Control (ul)
    H
    2
    O
    6.97.9
    10X Cutsmart11
    XhoI.5X
    PvoII-HF.5X
    DNA (22.2ug/ul)1.041.04
  • Digested at 37°C in incubator for an hour
  • 2ul of 6X Purple Loading Dye added to each of the four tubes after an hour digest to inactivate enzyme
Ran a gel

Lane:

  1. Brian's Construct
  2. Construct Digest - Control
  3. Construct Digest - Experimental
  4. Ladder
  5. Vector Digest - Experiment
  6. Vector Digest -Control
  • Ran at 116V for 30 minutes

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About This Project

Our project aims to provide a method of detecting pancreatic cancer in humans. We are using yeast in this project as a method for expressing Cripto-1, a membrane protein which binds to a biomarker for pancreatic cancer. We hope to be able to couple CR-1 binding to a reporter inside yeast for indication of the presence of the biomarker in human blood serum. This could offer insight into the potential for synthetic biology as an important medical tool in the future.


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