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Rauscher leukemia virus populations enriched for “immature” virions contain increased amounts of P70, the gag gene product
Open accessAbstract
Preparations of Rauscher leukemia virus (RLV) that had relatively low, intermediate, or high levels of P70 (the gag gene product) on sodium dodecyl sulfatepolyacrylamide gel electrophoresis were examined by thin-section electron microscopy. A direct correlation was found between the number of immature virions in the RLV preparation and the amount of P70. The immature core subparticles isolated from these RLV preparations could themselves be further subdivided into two categories, based on their P70 content and negative stain morphology. Those immature cores containing a high P70/p30 ratio predominantly (85%) exhibited a highly coiled internal structure; those with a relatively low level of P70 exhibited less of an internal coiled structure.
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“Such structural differences have been observed in viruses that assemble at the plasma membrane, such MLV and HIV-1, as well as those that preassemble in the cytoplasm before budding, such as MPMV and MMTV”
From Beyond reverse transcription: molecular mechanisms and emerging paradigms in retroviral replication (2026) · cites this paper as Luftig and Yoshinaka 1978
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Beyond reverse transcription: molecular mechanisms and emerging paradigms in retroviral replication
Jehad, M. A., Ali, L. M., Pillai, V. N., Prabhu, S. G., Mustafa, F., & Rizvi, T. A. (2026) · FEMS Microbiology Reviews · doi:10.1093/femsre/fuaf066 · Cited by 5
“Such structural differences have been observed in viruses that assemble at the plasma membrane, such MLV and HIV-1, as well as those that preassemble in the cytoplasm before budding, such as MPMV and MMTV (Luftig and Yoshinaka 1978 , Katoh et al. 1985 , Voynow and Coffin 1985 , Göttlinger et al. 1989 , Peng et al. 198…”
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Metadata
- Authors
- Luftig, R. B., & Yoshinaka, Y.
- Venue
- Journal of Virology
- Publisher
- American Society for Microbiology
- Published
- 1978-01
- Volume
- 25
- Issue
- 1
- Pages
- 416-421
- ISSN
- 0022-538X (ISSN-L)
- 1098-5514
- PMC
- PMC353940
- OpenAlex
- W1596461060
- Cited by
- 20
- References
- 0
- Citations by year
- 2025: 1 · 2012: 1
- FWCI
- 1.63
- Type
- journal article
- Language
- en
- Open access
- green
- europepmc.org
- Locations
- Journal of Virology (publishedVersion)
- Europe PMC (PubMed Central) (publishedVersion)
- PubMed Central (publishedVersion)
- PubMed (publishedVersion)
- Topics
- Life Sciences › Immunology and Microbiology › Immunology › T-cell and Retrovirus Studies
- Life Sciences › Immunology and Microbiology › Virology › HIV Research and Treatment
- Health Sciences › Medicine › Infectious Diseases › Infectious Diseases and Mycology
- Keywords
- Rauscher leukemia virus, immature virions, p70, virion ultrastructure, p30
- MeSH terms
- Genes, Viral, Protein Precursors, Rauscher Virus, Surface-Active Agents, Viral Proteins, Virion
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