BME103:T930 Group 4 l2: Difference between revisions

From OpenWetWare
Jump to navigationJump to search
Line 134: Line 134:


'''Background on Disease Markers'''
'''Background on Disease Markers'''
Much like the cancer-linked genes we observed in our first lab write up, we were able to pinpoint several other diseases that can be linked to genetic variation. The first of these to be discussed will be Alzheimer's disease. Alzheimer's is a degenerative brain disease that results primary in memory loss, as well as loss of other cognitive brain functions. The Reference SNP number for this genetic variation is 63750082, and similar to the mutation that causes cancer because it is a missense mutation. However, rather than a single-nucleotide missense mutation, there are a few different mutations that can occur. Basically, in the sequence GGT, the second G can become an A, C, or T (GAT, GCT, GTT). For more information about the gene alteration, visit [http://www.ncbi.nlm.nih.gov/projects/SNP/snp_ref.cgi?rs=63750082 here!]


<!--- A description of the diseases and their associated SNP's (include the database reference number and web link) --->
<!--- A description of the diseases and their associated SNP's (include the database reference number and web link) --->

Revision as of 20:21, 28 November 2012

BME 103 Fall 2012 Home
People
Lab Write-Up 1
Lab Write-Up 2
Lab Write-Up 3
Course Logistics For Instructors
Photos
Wiki Editing Help

OUR TEAM

Name: Alex Hoang
Role(s): Open PCR Machine Engineer
Name: Bobby Ryan
Role(s): Open PCR Machine Engineer
Name: Sabrina Freeman
Role(s): Experimental Protocol Planner
Name: Sheanah Conneen
Role(s): Experimental Protocol Planner
Name: Hayden Hilliard
Role(s): Research and Development Scientist

LAB 2 WRITE-UP

Thermal Cycler Engineering

Our re-design is based upon the Open PCR system originally designed by Josh Perfetto and Tito Jankowski.


System Design


Key Features


Instructions





Protocols

Materials

Supplied in the Kit Amount
PCR machine 1
Empty sample tubes 30
Pre-mixed reagent 1,000 μL
Gloves (latex) 1 pair
Open PCR software 1 copy
Sample tube carrier 1
Calf thymus 1,000 μL
SYBR Green 1,000 μL


Supplied by User Amount
Micro-pipetter 1 (50 μL volume)
Pipette tips As needed
Patient samples 1,000 μL
Waste container 1
IMAGEJ Application 1 smart phone


PCR Protocol

  1. Create as many copies of each original DNA sample as needed. Be sure to label each container explicitly.
  2. Put the appropriate amount of reagent mixture and patient sample into each container.
  3. Place samples in the PCR machine.
  4. Start the PCR machine.
  5. Create a new program for the PCR machine, set it as follows:
    1. Indicate that there will be 15 cycles.
    2. Start the samples at 95°C for 30 seconds to unwind the helix.
    3. Then lower temperature to 57°C for 30 seconds to activate the primer and strand pairing.
    4. Next raise the temperature to 72°C for 1 minute to activate the DNA polymerase for replication.
  6. Remove the samples from the PCR machine and store them until it is time to take flourimeter measurements.


DNA Measurement Protocol

  1. Explicitly label all pipettes and Eppendrof tubes so that it is used for one specific sample.
  2. Transferred each sample into and Eppendorf tube containing 400 μL of buffer and label it with the number of the sample.
  3. Obtain the Eppendrof tube containing SYBR Green I and place two drops on the first two centered drops of the glass slide inside the flourimeter box.
  4. Place two drops of one sample mixed with the buffer on top of the SYBR Green.
  5. Align the light so that it is shining through the drop.
  6. After opening the IMAGEJ Application on a smartphone place said smartphone in the carriage of the flourimeter box designated for smartphones.
  7. Take pictures of each sample using the flourimeter box.
  8. To analyze images using the IMAGEJ Application.
  9. Using the default settings draw ovals around the drops in the images and press MEASURE.
  10. Save the number that is measured and select ANALYZE BACKGROUND.
  11. Save all measurements as a single file and either export the file via email or connect the smartphone to a computer to transfer the file. The file will open in Microsoft Excel.

Research and Development

Background on Disease Markers Much like the cancer-linked genes we observed in our first lab write up, we were able to pinpoint several other diseases that can be linked to genetic variation. The first of these to be discussed will be Alzheimer's disease. Alzheimer's is a degenerative brain disease that results primary in memory loss, as well as loss of other cognitive brain functions. The Reference SNP number for this genetic variation is 63750082, and similar to the mutation that causes cancer because it is a missense mutation. However, rather than a single-nucleotide missense mutation, there are a few different mutations that can occur. Basically, in the sequence GGT, the second G can become an A, C, or T (GAT, GCT, GTT). For more information about the gene alteration, visit here!



Primer Design



Illustration