Griffitts:Common buffers: Difference between revisions
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==plasmid purification solutions== | ==plasmid purification solutions== | ||
===resuspension buffer=== | ===resuspension buffer=== | ||
* 50 | * 50 mM [[Griffitts:Common buffers#1 M Tris, pH 8.0 (75 mL)|Tris pH 8.0]] | ||
* 10 | * 10 mM [[Griffitts:Common buffers#0.25 M EDTA (75 mL)|EDTA]] | ||
===lysis solution=== | ===lysis solution=== | ||
* 1% [[ | * 1% [[Griffitts:Stock solutions#20% SDS (75 mL)|SDS]] | ||
* 200 | * 200 mM NaOH | ||
===neutralization solution=== | ===neutralization solution=== | ||
* 4 | * 4 M KOAc (pH to 5.5 with acetic acid) | ||
===RNAse A=== | ===RNAse A=== | ||
* 5 mg/mL | * 5 mg/mL RNAse A (in freezer) | ||
* 50 mM [[ | * 50 mM or 20 mM [[Griffitts:Common buffers#1 M Tris, pH 8.0 (75 mL)|Tris pH 8.0]] | ||
Note: RNAse A is purchased from Sigma (R-6513) | |||
===silica suspension=== | ===silica suspension=== | ||
* Wash 5X with ddH<sub>2</sub>0<br> | * Wash 5X with ddH<sub>2</sub>0<br> | ||
* Resuspend as 50% slurry in ddH<sub>2</sub>0<br> | * Resuspend as 50% slurry in ddH<sub>2</sub>0<br> | ||
Store at -20°C | |||
===silica wash solution=== | ===silica wash solution=== | ||
* 50% | * 50% ethanol | ||
* 10 mM [[ | * 10 mM [[Griffitts:Common buffers#1 M Tris, pH 7.5 (75 mL)|Tris pH 7.5]] | ||
* 50 mM NaCl | * 50 mM [[Griffitts:Stock solutions#5 M NaCl (75 mL)|NaCl]] | ||
* 2.5 mM [[ | * 2.5 mM [[Griffitts:Common buffers#0.25 M EDTA (75 mL)|EDTA]] | ||
===Proteinase K=== | |||
* 20 mg/mL Proteinase K (in freezer) | |||
* 20 mM [[Griffitts:Common buffers#1 M Tris, pH 8.0 (75 mL)|Tris pH 8.0]] | |||
Store at -20°C | |||
===Lysozyme=== | |||
* 1 mL dH<sub>2</sub>O | |||
* 30mg lysozyme (in freezer) | |||
* Dilute 60X into [[Griffitts:Common buffers#colony lysis solution (for PCR) (100 mL)|lysis buffer]] | |||
Store at -20°C |
Revision as of 10:36, 13 February 2008
Electrophoresis Buffers
2% bromophenol blue
Sterile filter
8X DNA loading
- 40% glycerol
- 1/50 dilution of bromophenol blue
6X SDS loading
- 7.5 mL 80% glycerol
- 2.5 mL 1M Tris pH 6.8
- 1.2 g SDS
- 600 μL 2-mercaptoethanol
- 150 μL 2% bromophenol blue
DNA ladder
- 147 μL ddH20
- 34 μL 8X DNA loading buffer
- 20 μL 1 kb ladder from NEB
- 2 μL 0.25M EDTA
Note: use 5 μL per lane; 3kb band=60 ng
Protein ladder
- Open vial of Sigma SDS6H2-1VL
- Add 1 mL ddH20
- Add 500 μL 6X SDS loading
- Aliquot 50 μL per tube and store at -20
Note: use 5 μL per lane
ethidium bromide (10 mL)
- 10 mL ddH20
- 10 mg ethidium bromide
Note: use 8 μL per 50 mL gel
50X TAE (1 L)
- ~800 mL ddH20
- 242 g Trizma base
- 57.1 mL glacial acetic acid
- 100 mL 0.25 M EDTA (pH 8.0)
QS to volume with ddH20
Note: this is half the amount of EDTA compared to standard TAE
10X Laemmli running buffer
QS to volume with ddH20
Coomassie stain (300 mL)
- 120 mL ethanol
- 0.3 g Brilliant Blue R
Mix for 30 min.
- 30 mL acetic acid
- 150 mL ddH20
Coomassie destain solution (1 L)
- 550 mL ddH20
- 400 mL ethanol
- 50 mL acetic acid
DNA extraction buffers
colony lysis solution (for PCR) (100 mL)
- 96.2 mL of sterile ddH2O
- 0.5 mL of 1 M Tris, pH 8.0 (final concentration: 5 mM)
- 0.8 mL of .25 M EDTA (final concentration: 2 mM)
- 2.5 mL of 20% Triton X-100 (final concentration: 0.5%)
- in fridge with the antibiotics
- in fridge with the antibiotics
Note: Store in fridge
TE buffer
1 M Tris, pH 7.5 (75 mL)
- 75 mL ddH2O
- 9.09 g Tris (Trizma)
- pH to 7.5 with HCl
1 M Tris, pH 8.0 (75 mL)
- 75 mL ddH2O
- 9.09 g Tris (Trizma)
- pH to 8.0 with HCl
0.25 M EDTA (75 mL)
- 75 mL ddH2O
- 6.98 g EDTA
- pH to 8.0 with NaOH
20% Triton X-100
Note: do not filter sterilize
Store in fridge with the antibiotics
plasmid purification solutions
resuspension buffer
- 50 mM Tris pH 8.0
- 10 mM EDTA
lysis solution
- 1% SDS
- 200 mM NaOH
neutralization solution
- 4 M KOAc (pH to 5.5 with acetic acid)
RNAse A
- 5 mg/mL RNAse A (in freezer)
- 50 mM or 20 mM Tris pH 8.0
Note: RNAse A is purchased from Sigma (R-6513)
silica suspension
- Wash 5X with ddH20
- Resuspend as 50% slurry in ddH20
Store at -20°C
silica wash solution
- 50% ethanol
- 10 mM Tris pH 7.5
- 50 mM NaCl
- 2.5 mM EDTA
Proteinase K
- 20 mg/mL Proteinase K (in freezer)
- 20 mM Tris pH 8.0
Store at -20°C
Lysozyme
- 1 mL dH2O
- 30mg lysozyme (in freezer)
- Dilute 60X into lysis buffer
Store at -20°C