BME100 f2014:Group31 L4

BME 100 Fall 2014	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: Jimmy Xu Name: Andrew Liu Name: Andy Chang Name: Charles Bolton Name: Afshin Isadvesta Name: Michael Chatarachanwong LAB 4 WRITE-UP Protocol Materials Lab coat and disposable gloves PCR reaction mix, 8 tubes, 50 μL each: Mix contains Taq DNA polymerase, MgCl2, and dNTP's (http://www.promega.com/resources/protocols/product-information-sheets/g/gotaq-colorless-master-mix-m714-protocol DNA/ primer mix, 8 tubes, 50 μL each: Each mix contains a different template DNA. All tubes have the same forward primer and reverse primer A strip of empty PCR tubes Disposable pipette tips: only use each only once. Never re-use disposable pipette tips or samples will be cross-contaminated Cup for discarded tips Micropipettor OpenPCR machine: shared by two groups PCR Reaction Sample List Tube Label PCR Reaction Sample Patient ID G31 + Positive control none G31 - Negative control none G31 1-1 Patient 1, replicate 1 G31 1-2 Patient 1, replicate 2 G31 1-3 Patient 1, replicate 3 G31 2-1 Patient 2, replicate 1 G31 2-2 Patient 2, replicate 2 G31 2-3 Patient 2, replicate 3 DNA Sample Set-up Procedure Step 1 Step 2 Step 3... OpenPCR program HEATED LID: 100°C INITIAL STEP: 95°C for 2 minutes NUMBER OF CYCLES: 35 Denature at 95°C for 30 seconds, Anneal at 57°C for 30 seconds, and Extend at 72°C for 30 seconds FINAL STEP: 72°C for 2 minutes FINAL HOLD: 4°C Research and Development PCR - The Underlying Technology What is the function of each component of a PCR reaction? TEMPLATE DNA The template DNA in a PCR reaction contains the starting sequence of nucleotides that are to be amplified. The DNA sequence is added first and denatured by increasing temperature to about 95°C. There are now two separate strands from the original DNA double helix strand. Each strand will be used for replication to amplify the desired DNA sequence. PRIMERS Primers are small sequences of nucleotides that have been designed in a laboratory. Their function is to find the locus at which DNA replication is to occur, and bind to that location. Because primers are manufactured, they can be manipulated to have the exact desired sequence. The primers will attach, or "anneal" at around 55°C. To ensure that they don't attach to another area on the DNA strand, a length of about 20 nucleotide is used. A total of two primers are actually used in the reaction, one for each strand of the template DNA. These primers, after pairing with complimentary bases, kick-start the DNA polymerase replication, because DNA polymerase can only attach to certain start areas in the DNA.