BME100 s2015:Group5 9amL4: Difference between revisions

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   ((Two of the tubes must be labelled as "control." [P or N]))
   ((Two of the tubes must be labelled as "control." [P or N]))
* Patient Example: G5 1-2
* Patient Example: G5 1-2 (Group 5, Patient 1, Sample 2)
* Control Example: G5 P
* Control Example: G5 P (Group 5, Positive Control)
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Revision as of 17:42, 31 March 2015

BME 100 Spring 2015 Home
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Lab Write-Up 1 | Lab Write-Up 2 | Lab Write-Up 3
Lab Write-Up 4 | Lab Write-Up 5 | Lab Write-Up 6
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OUR TEAM

Name: Jacob Licko
Name: Stephen Belikoff
Name: Khalil Khoury
Name: Daniela Romero
Name: Wei Lu

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
  • Open PCR machine: shared by two groups


PCR Reaction Sample List

Tube Label PCR Reaction Sample Patient ID
G5 P + Positive control none
G5 N - Negative control none
G5 1-1 Patient 1, replicate 1 59697
G5 1-2 Patient 1, replicate 2 59797
G5 1-3 Patient 1, replicate 3 59797
G5 2-1 Patient 2, replicate 1 79049
G5 2-2 Patient 2, replicate 2 79049
G5 2-3 Patient 2, replicate 3 79049


DNA Sample Set-up Procedure

  1. Gather all required materials (listed above)
  2. Divide strip of 8 empty tubes into two sets of four
  3. Follow the instructions from the Student Workbook and label each of the 8 tubes legibly with a black fine point marker in the following way:
  1. G (Group)
  2. # (Group Number)
  3. Patient # (1 or 2) [DASH] Sample # (1, 2, or 3)

((Two of the tubes must be labelled as "control." [P or N]))

  • Patient Example: G5 1-2 (Group 5, Patient 1, Sample 2)
  • Control Example: G5 P (Group 5, Positive Control)

OpenPCR program

  1. HEATED LID: 100°C
  2. INITIAL STEP: 95°C for 2 minutes
  3. NUMBER OF CYCLES: 35
  1. Denature at 95°C for 30 seconds
  2. Anneal at 57°C for 30 seconds
  3. Extend at 72°C for 30 seconds
  1. FINAL STEP: 72°C for 2 minutes
  2. FINAL HOLD: 4°C



Research and Development

PCR - The Underlying Technology

Q1: What is the function of each component of a PCR reaction

Template DNA: This is the sequence of DNA that is intended for amplification. It will undergo extreme heat in order for it to denature.

Primers: A primer is a single strand of DNA that serves as the starting point for DNA synthesis that binds to specific DNA sequences.

Taq Polymerase: This is a thermostable enzyme that recombines nucleotides following separation by heat. It creates a new, complimentary strand of DNA through adding new nucleotides to the old ones.

Deoxyribonucleotides (dNTP's): There are the building blocks of DNA: adenine (A), thymine (T), cytosine (C) and guanine (G). These are used by the Taq Polymerase to synthesize the complementary strand of DNA.

Q2: What happens to the components (listed above) during each step of thermal cycling?


Q3: DNA is made up of four types of molecules called nucleotides, designated as A, T, C and G. Base-pairing, driven by hydrogen bonding, allows base pairs to stick together. Which base anneals to each base listed below?;;;

  • Adenine (A): pairs with Thymine (T)
  • Thymine (T): pairs with Adenine (A)
  • Cytosine (C): pairs with Guanine (G)
  • Guanine (G): pairs with Cytosine (C)

Q4: During which two steps of thermal cycling does base-pairing occur? Explain your answers.