Regulation of expression of type C virion DNA polymerase (reverse transcriptase) in human × mouse and human × rat hybrid cells

John D. Minna, Thomas H. Marshall, Stuart H. Brown, Robert D. Burk, Richard S. Lemons, Samuel H. Wilson

Research output: Contribution to journalArticle

Abstract

Human cells from 13 different individuals were fused to mouse and rat cells producing abundant type C viral particles. The results demonstrate that incorporation of active DNA polymerase (reverse transcriptase) into mature type C particles is suppressed in many of the hybrid clones but not in the parental mouse cell clones. This low particle-associated DNA polymerase phenotype was a heritable trait for over 100 cell generations but reversion to a high particle-associated DNA polymerase phenotype was possible. In contrast, no evidence for suppression of viral p30 antigen was found. These results suggest that human cells contain a factor (s) capable of interfering with the normal maturation of the mouse retrovirus DNA polymerase protein; however, it was not possible to assign this function to any of 20 different human chromosomes tested. It is suggested that these somatic cell hybrids may be useful in examining individual events in retrovirus packaging and release.

Original languageEnglish (US)
Pages (from-to)991-1011
Number of pages21
JournalSomatic Cell Genetics
Volume5
Issue number6
DOIs
StatePublished - Nov 1979
Externally publishedYes

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Hybrid Cells
RNA-Directed DNA Polymerase
DNA-Directed DNA Polymerase
Virion
Retroviridae
Clone Cells
Phenotype
Viral Antigens
Human Chromosomes
Product Packaging
DNA polymerase C
Proteins

ASJC Scopus subject areas

  • Genetics
  • Medicine(all)

Cite this

Regulation of expression of type C virion DNA polymerase (reverse transcriptase) in human × mouse and human × rat hybrid cells. / Minna, John D.; Marshall, Thomas H.; Brown, Stuart H.; Burk, Robert D.; Lemons, Richard S.; Wilson, Samuel H.

In: Somatic Cell Genetics, Vol. 5, No. 6, 11.1979, p. 991-1011.

Research output: Contribution to journalArticle

Minna, John D. ; Marshall, Thomas H. ; Brown, Stuart H. ; Burk, Robert D. ; Lemons, Richard S. ; Wilson, Samuel H. / Regulation of expression of type C virion DNA polymerase (reverse transcriptase) in human × mouse and human × rat hybrid cells. In: Somatic Cell Genetics. 1979 ; Vol. 5, No. 6. pp. 991-1011.
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