Abstract
The RNA-dependent DNA polymerase present in intracisternal A-type particles from mouse myeloma tumor cells has been studied. This polymerase can use either endogenous A particle RNA or an exogenous synthetic polynucleotide [poly (rA)] as a template. The DNA reaction product is small (4S-10S) and over 90% of it hybridizes to A particle RNA, whereas up to 50% of it hybridizes to murine sarcoma-leukemia virus RNAs. The RNA isolated from purified A particles is generally of low molecular weight (5S-15S) but contains small amount of 70S and 35S components. These results suggest that A-type particles may be related to C-type oncornaviruses.
MeSH Terms
Animals
Cell Fractionation
Cell Line
Centrifugation, Density Gradient
DNA, Viral/biosynthesis
Dactinomycin/pharmacology
Gammaretrovirus/analysis,enzymology
Mice
Mice, Inbred BALB C
Microscopy, Electron
Molecular Weight
Nucleic Acid Hybridization
Plasmacytoma
Polyethylene Glycols/pharmacology
Polynucleotides/metabolism
RNA, Viral/analysis,metabolism
RNA-Directed DNA Polymerase/metabolism
Templates, Genetic
Thymine Nucleotides/metabolism
Tritium
Chemicals
DNA, Viral
Polynucleotides
RNA, Viral
Thymine Nucleotides
Tritium
Dactinomycin
Polyethylene Glycols
RNA-Directed DNA Polymerase
Authors & Affiliations
4 authors, click to expand affiliations / ORCID
Robertson D L
Baenziger N L
Dobbertin D C
Thach R E
References (15)
15 references, click to expand
-
Studies on DNA synthesis in murine myeloma. II. Activation of latent RNA-dependent DNA polymerase activity in membrane fractions.
Biochem Biophys Res Commun. 1972 Nov 15;49(4):1093-9
PMID: 4641706
-
Immunoglobulin-producing tumors and myeloma proteins of mice.
Physiol Rev. 1972 Jul;52(3):631-719
PMID: 4555516
-
Intracellular and virion 35 S RNA species of murine sarcoma and leukemia viruses.
Virology. 1974 May;59(1):258-65
PMID: 4826208
-
A crude nuclease preparation suitable for use in DNA reassociation experiments.
Biochim Biophys Acta. 1971 Jul 29;240(4):522-31
PMID: 5123563
-
Characterization of C-type particles produced by a tissue culture-adapted murine myeloma.
J Virol. 1973 Dec;12(6):1589-97
PMID: 4128386
-
Characterization of an endogenous RNA-dependent DNA polymerase associated with murine intracisternal A particles.
J Virol. 1974 Mar;13(3):712-20
PMID: 4132671
-
The low molecular weight RNAs of Rous sarcoma virus. I. The 4 S RNA.
Virology. 1970 Sep;42(1):182-95
PMID: 4318979
-
Distribution of intracisternal A-particles in a variety of normal and neoplastic mouse tissues.
Int J Cancer. 1971 Jan 15;7(1):167-75
PMID: 4322935
-
Some structural and antigenic properties of intracisternal A particles occurring in mouse tumors (complement fixation-immunodiffusion-neuroblastoma-plasma-cell tumor).
Proc Natl Acad Sci U S A. 1972 Jan;69(1):218-22
PMID: 4333040
-
RNA-directed DNA synthesis and RNA tumor viruses.
Adv Virus Res. 1972;17:129-86
PMID: 4348509
-
Characterization of RNA from noninfectious virions produced by sarcoma positive-leukemia negative transformed 3T3 cells.
Proc Natl Acad Sci U S A. 1973 Oct;70(10):3002-6
PMID: 4355380
-
Letter: Evidence for non-repetitive subunits in the genome of Rous sarcoma virus.
J Mol Biol. 1974 Mar 25;84(1):217-21
PMID: 4364588
-
A novel DNA polymerase activity found in association with intracisternal A-type particles.
Proc Natl Acad Sci U S A. 1972 Jun;69(6):1531-6
PMID: 4504367
-
Intracisternal A particles in ova and preimplantation stages of the mouse.
Nat New Biol. 1973 May 16;243(124):91-3
PMID: 4512964
-
Analysis of high-molecular-weight ribonucleic acid associated with intracisternal A particles.
J Virol. 1973 Feb;11(2):287-98
PMID: 4688704