Cited by 98Chromosomal and Genetic VariationsHIV Research and TreatmentT-cell and Retrovirus Studies

Human Endogenous Retroviral Element K10 (HERV-K10) Encodes a Full-Length Gag Homologous 73-kDa Protein and a Functional Protease

Mueller-Lantzsch, Nikolaus, Sauter, Marlies, Weiskircher, Anette, Kramer, Klaus, Best, Barbara, Buck, Marion, Grässer, Friedrich·1993·AIDS Research and Human Retroviruses

Abstract

The gag -homologous region of the human endogenous retrovirus K10 (HERV-K10) was amplified by PCR from human genomic DNA and was analyzed by DNA cloning, sequencing, and expression of open reading frames in the prokaryotic pATH expression system. The analysis of genomic DNA of three donors provided evidence that HERV-K10 genes contain an open reading frame of 1966 bp spanning the entire gag -homologous region. In the prokaryotic system the entire reading frame of the HERV-K10 gag gene could be expressed as a fusion protein exhibiting a molecular weight of about 110,000. In addition, when the gag -homologous region and the adjacent HERV-K10 protease gene were prokaryotically expressed, we observed a Gag-protease fusion protein that exhibited specific autoproteolytic activities and processing of HERV-K10 Gag protein. By introducing deletions on the right end of the putative protease gene an autocatalytic site could be localized within 300 bp of the putative HERV-K10 protease gene. For the first time, these results provide evidence that the HERV-K10 encodes a full-length Gag protein and a functional protease.

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Crossref · 10.1089/aid.1993.9.343

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28 of 28 references verified0 citation errors · 0 not checkable

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  • Retrovirus-like particles (RLPs) resemble retroviral vesicles on EM but are non-infectious, are defined by size 90-100 nm and a subset of retroviral proteins, arise by budding from the plasma membrane, and Gag protein may serve as a marker.

    “Retrovirus-like Particles (RLPs) are those that resemble retroviral vesicles on EM but are non-infectious because they do not contain the full complement of genes required for cellular entry or viral propagation. These vesicles are typically defined by their size (90-100 nm) and the presence of a subset of retroviral proteins [69-72].”

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Authors
Mueller-Lantzsch, N., Sauter, M., Weiskircher, A., Kramer, K., Best, B., Buck, M., & Grässer, F.
Venue
AIDS Research and Human Retroviruses
Published
1993-04
Volume
9
Issue
4
Pages
343-350
ISSN
  • 0889-2229 (ISSN-L)
  • 1931-8405
OpenAlex
W2011460120
Cited by
98
References
28
Citations by year
2026: 1 · 2025: 1 · 2024: 1 · 2023: 1 · 2022: 1 · 2019: 6 · 2018: 2 · 2014: 1 · 2013: 3 · 2012: 3
FWCI
10.75
Type
journal article
Language
en
Open access
closed
Locations
  • AIDS Research and Human Retroviruses (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Life Sciences › Agricultural and Biological Sciences › Plant Science › Chromosomal and Genetic Variations
  • Life Sciences › Immunology and Microbiology › Virology › HIV Research and Treatment
  • Life Sciences › Immunology and Microbiology › Immunology › T-cell and Retrovirus Studies
Keywords
human endogenous retroviruses, Gag protein, proteolytic enzymes, retroviral gene expression
MeSH terms
Base Sequence, Cloning, Molecular, DNA, Viral, Escherichia coli, Humans, Molecular Sequence Data, Endopeptidases, Retroviridae, Tumor Cells, Cultured, Blotting, Southern, Immunoblotting, Gene Products, gag, Polymerase Chain Reaction, Sequence Homology

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