Isolation of DNA from agarose gels using DEAE-paper. Application to restriction site mapping of adenovirus type 16 DNA

Isolation of DNA from agarose gels using DEAE-paper. Application to restriction site mapping of adenovirus type 16 DNA.

A new method for isolating DNA from agarose gels is described. The method involves the simultaneous transfer of all DNA-fragments from an agarose slab gel onto DEAE-cellulose paper and the elution of the individual fragments from the paper with 1 M NaCl. DNA isolated from agarose gels in this way is susceptible to cleavage with several restriction endonucleases, and can be labeled in vitro with...

Disposable device for the isolation of DNA from agarose gels.

A problem that arises when cloning DNA is the isolation of specific DNA molecules following restriction enzyme digestion or PCR amplification. Typically, a mixture of DNA fragments is electrophoretically separated by agarose gel electrophoresis, the gel is stained with ethidium bromide, and the DNA is visualized by UV transillumination. The DNA fragments of interest are excised from the gel usi...

Isolation and purification of large DNA restriction fragments from agarose gels.

This unit describes methods for recovering and purifying DNA restriction fragments from agarose gels. The first basic protocol describes electroelution of the fragment of interest from standard agarose gels using buffer-filled dialysis bags, followed by concentration and purification using an Elutip column. This approach can be used effectively for fragments of all sizes from 50 to 20,000 bp. E...

Recovering DNA from agarose gels with pumice.

Detection of DNA in agarose gels.

Nucleic acids that have been subjected to electrophoresis through agarose gels may be detected by staining and visualized by illumination with 300-nm UV light. Methods for staining and visualization of DNA using either ethidium bromide or SYBR Gold are described here. The most convenient and commonly used method to visualize DNA in agarose gels is staining with the fluorescent dye ethidium brom...