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        Restriction Digests of High Molecular Weight Yeast DNA

        互联网

        1155

        Purpose:

         

         

          To perform restriction digests of YACs for mapping using rare cutting enzymes or more conventional restriction endonuclease digestion.

        Time required:

         

         

          2-4 hours

        Special Reagents:

         

        • dependent upon enzymes desired

         

        Procedure:

         

        1. Using wide-bore pipette, aliquot 100 ng of liquid DNA into eppendorf tube. Add 2.5 � 10X restriction buffer, 1-2 ul RNase (5 mg/ml stock), 250-500 ng BSA, then dH2O up to 25 � volume. Incubate at appropriate temperature for 2-4 hours.

           

        2. Stop the reaction by adding 3 � of 10X glycerol stop mix; mix in tube gently, then microfuge for 15 seconds (rather than pipette up and down, which may shear the DNA).

         

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