Properties of a ribonucleoprotein particle isolated from Nonidet P-40-treated Rous sarcoma virus.

Abstract:

:A ribonucleoprotein particle containing about 20% ribonucleic acid (RNA), and containing little if any phospholipid or glucosamine, was recovered in high yield after treatment of Schmidt-Ruppin strain of Rous sarcoma virus and B77 virus with the nonionic detergent Nonidet P-40. This structure, which probably derives from the internal ribonucleoprotein filament described in electron microscopy studies, contained 80 to 90% of the viral 60 to 70S RNA and only about 10% of the protein present in intact virions. It sedimented in glycerol density gradients at approximately 130S and had a buoyant density in sucrose of about 1.34 g/ml. Studies with (32)P-labeled virus indicated that the ribonucleoprotein particle contained approximately 30 4S RNA molecules per 10(7) daltons of high-molecular-weight viral RNA. Intact virions contained about 70 4S RNA molecules per 10(7) daltons of high-molecular-weight RNA. Electrophoretic studies in dodecyl sulfate-containing polyacrylamide gels showed that the ribonucleoprotein particle contained only 5 of the 11 polypeptides found in the virion; of these the major component was a polypeptide weighing 14,000 daltons.

journal_name

J Virol

journal_title

Journal of virology

authors

Davis NL,Rueckert RR

doi

10.1128/JVI.10.5.1010-1020.1972

subject

Has Abstract

pub_date

1972-11-01 00:00:00

pages

1010-20

issue

5

eissn

0022-538X

issn

1098-5514

journal_volume

10

pub_type

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