Reaktion #670135

Reaktionsgleichung

dATP

dCTP

dGTP

dUTP

phenol

→

Uridine

Reaktionsbedingungen

Aufarbeitung

1. 1
   workup.ADDITIONThe subtracter-amplicon was diluted to 10 μg/ml, and four PCR reactions
2. 2
   SonstigeEach 50 μl reaction
3. 3
   Sonstige(5 min, 72° C.)
4. 4
   Sonstige(1 min, 95° C.; 3 min, 72° C.)
5. 5
   Extraktionextracted
6. 6
   Sonstigeisopropanol-precipitated
7. 7
   SonstigeThe S-adaptors were then removed with Hpa2-restriction
8. 8
   Extraktionextracted
9. 9
   Sonstigeisopropanol-precipitated
10. 10
    Sonstigeresuspended in a total 16 μl EEx3 buffer (30 mM EPPS, pH 8.0 at 20° C.; 3mM EDTA)

Vorschrift

The subtracter-amplicon was diluted to 10 μg/ml, and four PCR reactions were set up on ice to generate subtracter U-DNA for the control set. Each 50 μl reaction contained 2 μl diluted ligation, 1 μl 4 μg/μl S-hpa-24mer oligo, 2 μl dNTPs (10 mM dATP, 10 mM dCTP, 10 mM dGTP, and 30 mM dUTP), 5 μl 10× PCR buffer, 1 μl 3.5 U/μl Taq DNA polymerase and ddH2O. The S-hpa-12mer was melted away (5 min, 72° C.), and ends filled in with Taq DNA polymerase (7 min, 72° C.). Twenty-one cycles of amplification were performed (1 min, 95° C.; 3 min, 72° C.), and the products were phenol-extracted, isopropanol-precipitated and resuspended in 20 μl 10 mM Tris-buffer each (Sambrook et. al., "Molecular Cloning, 2nd Edition", p10.49 (1989)). The S-adaptors were then removed with Hpa2-restriction, and the restricted products (subtracters) were phenol-extracted, isopropanol-precipitated, combined and resuspended in a total 16 μl EEx3 buffer (30 mM EPPS, pH 8.0 at 20° C.; 3mM EDTA). 6 μl (9 μg) subtracters were measured on a 2.5% TBE-agarose gel.

Quelle