Properly purified preparations of poliovirus particles are practically free of -galactose and -acetyl--glucosamine. These sugars, however, are found in crude virus preparations, obtained by high and low speed sedimentation and by CsCl-gradient fractionation from infected HeLa cells. They are separated from the virus particle by extraction with chloroform and subsequent isopycnic sedimentation of the virus preparation. Since -galactose and -acetyl--glucosamine are regular constituents of glycoproteins, the absence of significant amounts of these sugars demonstrates the lack of glycoproteins in poliovirus particles.

Radioactive monosaccharides are recommended for the detection of cellular impurities in carbohydrate-free viruses.

A simple and rapid method for the purification of large quantities of poliovirus by ‘precipitation’ with polyethylene glycol, resuspension in CsCl solutions, extraction with chloroform and isopycnic sedimentation is described.


Article metrics loading...

Loading full text...

Full text loading...


Most cited this month Most Cited RSS feed

This is a required field
Please enter a valid email address
Approval was a Success
Invalid data
An Error Occurred
Approval was partially successful, following selected items could not be processed due to error