20.109(F13): TA notes for module 2

Day by Day Plan

M2D1

Before Class:

1. Gather 96-well plates for pipetting exercise
   • 2 plates / team = 9x2 + 8x2 = 34 plates (find 40 to be safe).
2. Make Xylene Blue & Eosin Y solutions
   • Xylene Blue at 1mM
   • Eosin Y at 10 mM
   • 40 mL total of each will be enough for both days
   • Make 20 aliqouts of 1.8 mL each in 2 mL eppendorf tubes

During Class:

1. Help students with simulation exercise
2. Stagger teams through pipetting exercise

M2D2

Before Class:

1. Trypsinize and pellet one T150 flask of SKOV3 cells and 15 cm dish of HCC827
   • This should be done right before class start (or you may start right when the quiz is handed out).
   • Resuspend the pellet in PBS and aliquot into 9 and 8 eppendorfs for T/R and W/F, respectively, for each cell type.
   • Go ahead and use all the cells available to you, just report to the students how many cells are in the pellet.
   • Cells should be ok on ice in PBS until the are needed.

1. • SKOV3 Media:
     • McCoys 5A
     • 10% FBS (Atlanta Biologicals)
     • 1% Glutamine
     • 1% Pen-Strep
     • 1% Non-essential Amino Acids
     • Can prepare media ahead of time
   • Use 2 mL of total media per dish
2. Thaw and aliqout 1XTrypsin (2 mL x 20 for M2D3, store aliqouts at -20C)

RNA Harvest & RT Reactions

1. Aliqout 1.1 mL of 0.5 mM EDTA for each group (20 total)
2. Prepare Qiashredder & RNEasy columns
   • Need 2 of each per team
     • Total of 18 of each T/R
     • Total of 16 of each W/F
3. Prepare RLT + βME
   • Need 14.25 mL total volume (10 μL of BME / mL)
   • Prepare 375 μL aliqouts
   • Note: This could be done on Monday and stored at 4C until R/F -- do this in chemical hood (w/ safety glasses on)
4. Aliqout RNeasy Buffers (20 each)
   • 800 μL 70% Ethanol (see me for correct ethanol to use)
   • 1.45 mL RW1
   • 2.2 mL of RPE
   • 1 mL RNAse-free water

EGFR Mutation PCR

1. Resuspend primers from IDT in PCR grade water at 100 μM
2. Aliquot into 10 uL aliqouts, one per team (20 total).

Day of Class

1. Prepare RT MasterMix (2013: we will find the components during the W/F M2D1 class)
2. Prepare & aliqout PCR MasterMix (2013: done -- 52 uL per tube)
3. Pour 2% gels for analysis

M2D4

Before Class:

1. Double check that there are 9 total SDS-PAGE gels.
2. Make-up enough transfer buffer for each class.
3. Make-up 1X TGS buffer -- will need ~ 1L for each box (5 boxes T/R and 4 boxes W/F)
4. Make sure there are 20 aliqouts of protease inhibitor and phosphatase inhibitor
5. Cut filter paper for WB -- Shannon will bring down from DAL lab
6. Put ethanol bottles from transformations on the front bench.
7. Have extra bag of eppendorf tubes ready on the front bench.

Day of Lab

1. Set-up gel boxes prior to start of lab (5 for T/R, 4 for W/F).
2. Put PBS and lysis buffer on ice.
3. Take the protein assay reagent out of the fridge and warm to RT.
4. Get a Styrofoam cooler with dry ice to put leftover cell lysates.

Each team will need:

1. 25 mL of ice-cold PBS
2. one, 1 mL aliqout of lysis buffer (cold)
3. very full ice bucket (need to use 4th floor ice machine + 3rd floor ice machine)
4. plastic cell scraper

Before the module starts

It will be easiest to pre-make many of the buffers that will be used during the module.

Old Notes

• Note: most of this is now out of date due to change in module aim

1. BRET Buffer (M2D7): -- pre-make this now:
   1. PBS
   2. 0.1% Glucose
   3. 0.1% BSA
   4. 1mM Sodium Pyruvate
   5. Note: using sterile TC technique, aliquot what you need of the sodium pyruvate and then prepare the BRET Buffer in the main lab.
   6. Sterile filter using a bottle top filter and store at 4C.
2. Transfer Buffer (10X) (without methanol) -- pre-make this now:
   1. 30.3 g Tris-Base
   2. 144 g Glycine
   3. Don't need to pH. Add dH2O to 1L.
   4. To make 1X: 100 mL 10X stock + 700 mL dH2O + 200 mL Methanol
3. Transfer Buffer (1X) (M2D4): -- make this day of lab
   1. 25 mM Tris Base
   2. 192 mM Glycine
   3. 20%(v/v) Methanol
4. CHO-K1 Growth Media:
   1. DMEM, high glucose
   2. 1% Sodium Pyruvate
   3. 1% NEAA
   4. 1% Glutamine
   5. 1% penicillin-streptomycin
   6. 10% FBS (Atlanta Biologicals)
5. CHO-K1-EGFR-GFP Growth Media:
   1. CHO-K1 Media
   2. 50 μg/mL G418 (neomycin)
6. CHO-K1 Starvation Media (can use for both K1 and EGFR-GFP cells):
   1. DMEM, high glucose
   2. 1%Sodium Pyruvate
   3. 1% NEAA
   4. 2% Glutamine
   5. 1% penicillin-streptomycin
   6. 0.1% FBS (Atlanta Biologicals)
   7. 0.35% BSA