Related Experiment Video
Updated: Aug 27, 2026

Streamlined Purification of Plasmid DNA From Prokaryotic Cultures
Published on: January 5, 2011
A simple method for DNA purification from peripheral blood
T A Ciulla1, R M Sklar, S L Hauser
1Neuroimmunology Unit, Massachusetts General Hospital, Boston 02114.
Abstract:
A new, simple, and inexpensive method for the rapid isolation of DNA from whole blood is described. Cell nuclei are prepared by lysis of cytoplasmic membranes and DNA within the nuclear pellet is dispersed with guanidine isothiocyanate and precipitated with isopropanol. DNA prepared in this way restricts completely and results in low backgrounds of nonspecific hybridization after Southern analysis. The yields of DNA are similar to those obtained by more tedious traditional procedures. Numerous genomic DNA samples can be prepared from whole blood in 2 h, thus facilitating gene linkage or other molecular studies in which large numbers of individuals are required.
Related Concept Videos
DNA Isolation
DNA Isolation
DNA Agarose Gel Electrophoresis
Gel extraction follows five major steps: running gel electrophoresis to separate fragments, isolating the individual bands, extracting DNA from those bands, and removing the dye and salts from the extracted mixture to obtain pure DNA.
In cloning experiments, both the insert and vector DNA...

