Protocols and Applications Guide (US Letter Size) - Promega
Protocols and Applications Guide (US Letter Size) - Promega
Protocols and Applications Guide (US Letter Size) - Promega
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||||||||| 9DNA Purification<br />
3. Apply vacuum to pull liquid through Minicolumn.<br />
Release vacuum when all liquid has passed through<br />
Minicolumn.<br />
Washing<br />
4. Add 700µl of Membrane Wash Solution (ethanol<br />
added). Apply a vacuum to pull solution through<br />
Minicolumn.<br />
5. Turn off vacuum <strong>and</strong> repeat Step 4 with 500µl of<br />
Membrane Wash Solution. Apply a vacuum to pull<br />
solution through Minicolumn.<br />
6. Transfer Minicolumn to a Collection Tube. Centrifuge<br />
at 16,000 × g for 5 minutes.<br />
7. Empty the Collection Tube <strong>and</strong> recentrifuge the column<br />
assembly for 1 minute with the microcentrifuge lid open<br />
(or off) to allow evaporation of any residual ethanol.<br />
Elution<br />
8. Carefully transfer Minicolumn to a clean 1.5ml<br />
microcentrifuge tube.<br />
9. Add 50µl of Nuclease-Free Water to the Minicolumn.<br />
Incubate at room temperature for 1 minute. Centrifuge<br />
at 16,000 × g for 1 minute.<br />
10. Discard Minicolumn <strong>and</strong> store DNA at 4°C or –20°C.<br />
XI. Composition of Solutions<br />
LB (Luria-Bertani) medium (1 liter)<br />
10g Bacto®-tryptone<br />
5g Bacto®-yeast extract<br />
5g NaCl<br />
Adjust pH to 7.5 with NaOH. Autoclave.<br />
LB-Miller medium (1 liter)<br />
10g Bacto®-tryptone<br />
5g Bacto®-yeast extract<br />
10g NaCl<br />
Adjust pH to 7.0 with NaOH. Autoclave.<br />
Membrane Wash Solution<br />
(Wizard® SV Gel <strong>and</strong> PCR Clean-Up System)<br />
10mM potassium acetate (pH 5.0)<br />
80% ethanol (after ethanol addition)<br />
16.7µM EDTA (pH 8.0)<br />
To prepare this solution, add 95% ethanol to the supplied<br />
Membrane Wash Solution (concentrated) as described in<br />
Table 9.11 in the Fragment/PCR Product Purification<br />
protocol section.<br />
<strong>Protocols</strong> & <strong>Applications</strong> <strong>Guide</strong><br />
www.promega.com<br />
rev. 3/09<br />
Membrane Binding Solution<br />
(Wizard® SV Gel <strong>and</strong> PCR Clean-Up System)<br />
4.5M guanidine isothiocyanate<br />
0.5M potassium acetate (pH 5.0)<br />
1X TE buffer<br />
10mM Tris-HCl (pH 7.5)<br />
1mM EDTA (pH 8.0)<br />
1X TBE buffer<br />
89mM Tris base<br />
89mM boric acid<br />
2mM EDTA (pH 8.0)<br />
1X TAE buffer<br />
40mM Tris base<br />
5mM sodium acetate<br />
1mM EDTA (pH 8.0)<br />
Terrific Broth (1 liter)<br />
12g Bacto®-tryptone<br />
24g Bacto®-yeast extract<br />
4ml glycerol<br />
Add components to 900ml deionized water. Autoclave <strong>and</strong><br />
allow solution to cool to ~60°C. Add 100ml of a sterile<br />
solution of 0.17M KH2PO4, 0.72M K2HPO4 <strong>and</strong> mix to<br />
disperse evenly.<br />
0.17M KH2PO4, 0.72M K2HPO4 sterile solution<br />
2.31g KH2PO4<br />
12.54g K2HPO4<br />
Dissolve in 90ml deionized water. Adjust volume to 100ml<br />
<strong>and</strong> sterilize by autoclaving.<br />
YPD broth (1 liter)<br />
10g yeast extract<br />
20g peptone<br />
20g dextrose<br />
Autoclave. Final pH 6.5±0.2 at 25°C.<br />
2X YT medium (1 liter)<br />
16g Bacto®-tryptone<br />
10g Bacto®-yeast extract<br />
5g NaCl<br />
Adjust pH to 7.0 with NaOH. Autoclave.<br />
XII.References<br />
Adams, D.S. (2003) In: Lab Math: A H<strong>and</strong>book of Measurements,<br />
Calculations, <strong>and</strong> Other Quantitative Skills for Use at the Bench Chapter<br />
5, Cold Spring Harbor Laboratory Press, NY, 127–45.<br />
Ahmed, A. et al. (2003) Madurella mycetomatis strains from<br />
mycetoma lesions in Sudanese patients are clonal. J. Clin. Microbiol.<br />
41, 4537–41.<br />
Ausubel, F.M. et al. (1989) Current <strong>Protocols</strong> in Molecular Biology,<br />
Vol. 2, John Wiley <strong>and</strong> Sons, NY.<br />
Birnboim, H.C. (1983) A rapid alkaline extraction method for the<br />
isolation of plasmid DNA. Methods Enzymol. 100, 243–55.<br />
Birnboim, H.C. <strong>and</strong> Doly, J. (1979) A rapid alkaline extraction<br />
procedure for screening recombinant plasmid DNA. Nucl. Acids<br />
Res. 7, 1513–23.<br />
PROTOCOLS & APPLICATIONS GUIDE 9-35