BME100 f2013:W1200 Group18 L4: Difference between revisions

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'''Experimenting With the Connections'''<br>
'''Experimenting With the Connections'''<br>


When we unplugged (part 3) from (part 6), the machine ... (did what? fill in your answer)
When we unplugged (part 3) from (part 6), the machine's screen on top of the box no longer functioned. The screen shows the data of the experiment, but because it was unplugged, we could not see the data.


When we unplugged the white wire that connects (part 6) to (part 2), the machine's heat sensor no longer functioned. It determines how hot the machine runs, therefore the machine did not pick up any heat when it was unplugged.  
When we unplugged the white wire that connects (part 6) to (part 2), the machine's heat sensor no longer functioned. It determines how hot the machine runs, therefore the machine did not pick up any heat when it was unplugged.  

Revision as of 15:13, 29 October 2013

BME 100 Fall 2013 Home
People
Lab Write-Up 1 | Lab Write-Up 2 | Lab Write-Up 3
Lab Write-Up 4 | Lab Write-Up 5 | Lab Write-Up 6
Course Logistics For Instructors
Photos
Wiki Editing Help


OUR TEAM

Name: Carlyn Harris
Role(s):Protocol
Name: Tori Platt
Role(s):Reseach and Development
Name: Nikhil Patel
Role(s):Initial PCR Testing
Name: Alexandra Olson
Role(s): Protocol
Name: Matthew Armas
Role(s):Initial PCR Testing
Name: student
Role(s)

LAB 1 WRITE-UP

Initial Machine Testing

The Original Design
(Add image of the full OpenPCR machine here, from the Week 9 exercise. Write a paragraph description for visitors who have no idea what this is)


Experimenting With the Connections

When we unplugged (part 3) from (part 6), the machine's screen on top of the box no longer functioned. The screen shows the data of the experiment, but because it was unplugged, we could not see the data.

When we unplugged the white wire that connects (part 6) to (part 2), the machine's heat sensor no longer functioned. It determines how hot the machine runs, therefore the machine did not pick up any heat when it was unplugged.

Test Run

Open PCR was first tested on 10/23/13 from 1:18pm to 1:44pm. During the lab, we inspected the 16-tube PCR block and the heating lid, which are both designed to retain a constant temperature across the samples that would be tested. We also explored the insides of the machine, and how its various components affected one another. Our experience with the machine was somewhat frustrating because the machine failed to complete the required amount of cycles in a reasonable amount of time. It was labeled as being slow.




Protocols

Thermal Cycler Program
Lid heated to 100 degrees Celsius
1.Initial: Thermo-cycler reaches 95°C for 3 minutes. Here, the DNA double helix separates into 2 strands
2. 35 cycles of the following:
-Denature at 95°C for 30 seconds. Double helix separates.
-Anneal at 57°C for 30 seconds. Primers attach to their target strands
-Extend at 72°C for 30 seconds.DNA polymerase is activated. It locates the primer and begins to add complementary nucleotides onto the strand until it gets to the end of the strand.
At the end of these steps, you have numerous replicates of your target DNA
3. Final Step: 72°C for 3 minutes
4. Final hold: 4°C


DNA Sample Set-up
PCC= Positive control: Cancer DNA
NCC= Negative control: Non-cancer DNA
P11,P12,P13= Patient 1's DNA samples
P21,P22,P23= Patient 2's DNA samples
Patient 1 ID: 54174
Patient 2 ID: 43184


PCC P11 P12 P13
NCC P21 P22 P23


DNA Sample Set-up Procedure
1. Label 6 50 μL disposable pipette tips with the labels given below corresponding to each patient.
2. Label the remaining 2 50 μL pipette tips, one as the positive control cancer DNA (PCC) and one as the negative control non-cancer DNA (NCC).
3. Pipette the PCR reaction mix into each reaction tube.
4. Using a different disposable pipette tip for each sample, pipette the DNA sample primer mix into each reaction tube.
5. Place the reaction tubes in the thermal cycler.
6. Run the PCR software that follows the protocol below.


PCR Reaction Mix

The PCR reaction mix contains:

   -Tag DNA Polymerase
   -MgCl2
   -dNTP's


DNA/ primer mix

The DNA primer mix contains:

   -Different template DNAs
   -Forward primer
   -Reverse primer





Research and Development

Polymerase Chain Reaction (PCR) - The Underlying Technology

Polymerase chain reaction occurs when DNA is heated and cooled at exact temperatures for exact intervals of time. However, there are five components required for the reaction to work successfully; template DNA, primers, TAQ polymerase, Magnesium Chloride (MgCl2), and dNTPs (deoxyribonucletides).


(BONUS points: Use a program like Powerpoint, Word, Illustrator, Microsoft Paint, etc. to illustrate how primers bind to the cancer DNA template, and how Taq polymerases amplify the DNA. Screen-captures from the PCR video/ tutorial might be useful. Be sure to credit the sources if you borrow images.)