REAGENTS REQUIRED FOR
M.C.B. SUMMER
Protogel
National Diagnostics cat. No. EC-890 1L
Temed Sigma cat. No. T9281 25 ml
Ammonium persulphate Sigma cat. No. A3678 25 g
To make the gel you need Running buffer : 1.5 M tris pH 8.8
Stacking buffer : 0.5 M tris pH 6.8
10% w/v SDS
10% w/v Ammon. Persulphate ( make fresh on the day )
Electrode buffer 6g Tris , 28.8 g Glycine , 20 ml of 10% SDS
and make up to 2 L with water.
Protein loading buffer : 2x is 4% SDS , 20% glycerol , 200 mM DTT , 120 mM Tris pH 6.8
0.002% Bromophenol blue.
PVDF membrane is from Millipore. One roll and cut to size – Immobilon P roll
cat.No. IPVH 000 10
Transfer buffer : 5.8 g Tris , 2.9 g Glycine , 3.7 ml 110% SDS , 200 ml Methanol make up to 1L with water.
Blocking solution : 1% BSA in tris buffered saline ( TBS ) containing 0.1% Tween 20
TBS : Dissolve 8.0 g NaCL , 0.2 g KCL , 3.0 g Tris in Distilled water, adjust to pH8 with HCL and make up to 1L. Can be autoclaved but may not be needed for this practical unless you want to make lots and store it for the 3 weeks. Store at R.T.
ECL protocol stocks Luminol from ICN 195038 or Fluka 09253 , make a 250mM stock soln. Dissolved in DMSO.
Indophenol from Sigma 1 – 5763 make a 400mM stock dissolved in DMSO
Glycine – NaoH buffer : 0.5M glycine in water , pH to 9.6 with NaoH
Hydrogen peroxide 30%w/v ( 9.8M ) bought from Sigma or BDH , goes off so must be bought in fresh.
Developer 2.0 ml Luminol stock
10.0 ml Indophenol stock
100 ml Glycine – NaoH buffer make to 1000ml with water
Store in dark at 4 C. Just before use activate the reagent by adding 36mL of Hydrogen Peroxide to 20 ml stock developer.
Chemiluminescence film : Kodak Biomax light from Sigma. ( Z37349 – 4 )
We get the 35 x 43 cm box and cut them if we need smaller bits.
Get the biggest film size that will fit the cassette , it should last for years so buy a big box.
Cholesterol assay reagent : Sigma 401 – 25P 500ml liquid 10 x 25 ml Pack
Cholesterol calibrator : Non certified is O.K. C0284 5ml
Bradford concentrate for protein assays : Biorad 450 ml 500 – 0006 ready to use
To make from scratch Dissolve 100mg coomassie brilliant blue G – 250 in 50ml 95% ethanol. Add 100ml conc. Phosporic acid and adjust vol. To 200ml with distilled water. Store at 4 C .
Antibody : The antibody is RC20H from Transduction labs. Order through Beckton Dickinson. Require 108 mL cat no. E120H and specify 50mg. Will keep at - 20.