ArticleJournal of virology1990
Mutational analysis of the human immunodeficiency virus type 1 env gene product proteolytic cleavage site.
Article in Journal of virology, 1990. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 59 papers.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
59 citing papers in PubMed, 131 citations in OpenAlex.
- HIV-1 Env Heterogeneity: Cleavage, Trafficking, and Antigenic Consequences for Virions and Infected Cells.Viruses · 2026Review
- Pseudovirus-Based Systems for Screening Natural Antiviral Agents: A Comprehensive Review.International journal of molecular sciences · 2024Review
- Inhibition of human immunodeficiency virus (HIV-1) infectivity by expression of poorly or broadly neutralizing antibodies against Env in virus-producing cells.Journal of virology · 2024Article
- Signal peptide exchange alters HIV-1 envelope antigenicity and immunogenicity.Frontiers in immunology · 2024Article
- Broadly neutralizing antibody epitopes on HIV-1 particles are exposed after virus interaction with host cells.Journal of virology · 2023Article
- Application of pseudovirus system in the development of vaccine, antiviral-drugs, and neutralizing antibodies.Microbiological research · 2022Review
- Disruption of HIV-1 co-receptors CCR5 and CXCR4 in primary human T cells and hematopoietic stem and progenitor cells using base editing.Molecular therapy : the journal of the American Society of Gene Therapy · 2022Article
- Jurkat-Derived (J-Lat, J1.1, and Jurkat E4) and CEM-Derived T Cell Lines (8E5 and ACH-2) as Models of Reversible Proviral Latency.Methods in molecular biology (Clifton, N.J.) · 2022Article
- Asymmetric Structures and Conformational Plasticity of the Uncleaved Full-Length Human Immunodeficiency Virus Envelope Glycoprotein Trimer.Journal of virology · 2021Article
- Article
- SARS-CoV-2 Portrayed against HIV: Contrary Viral Strategies in Similar Disguise.Microorganisms · 2021Review
- Dual Pathways of Human Immunodeficiency Virus Type 1 Envelope Glycoprotein Trafficking Modulate the Selective Exclusion of Uncleaved Oligomers from Virions.Journal of virology · 2021Article
- HIV-1 Hijacking of Host ATPases and GTPases That Control Protein Trafficking.Frontiers in cell and developmental biology · 2021Review
- Conformational Differences between Functional Human Immunodeficiency Virus Envelope Glycoprotein Trimers and Stabilized Soluble Trimers.Journal of virology · 2019Article
- Comparison of Uncleaved and Mature Human Immunodeficiency Virus Membrane Envelope Glycoprotein Trimers.Journal of virology · 2018Article
- Identification of Novel Structural Determinants in MW965 Env That Regulate the Neutralization Phenotype and Conformational Masking Potential of Primary HIV-1 Isolates.Journal of virology · 2018Article
- Current status on the development of pseudoviruses for enveloped viruses.Reviews in medical virology · 2018Review
- Antigenic characterization of the human immunodeficiency virus (HIV-1) envelope glycoprotein precursor incorporated into nanodiscs.PloS one · 2017Article
- The V4 and V5 Variable Loops of HIV-1 Envelope Glycoprotein Are Tolerant to Insertion of Green Fluorescent Protein and Are Useful Targets for Labeling.The Journal of biological chemistry · 2015Article
- Conformational evaluation of HIV-1 trimeric envelope glycoproteins using a cell-based ELISA assay.Journal of visualized experiments : JoVE · 2014Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
2 authors at 2 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
The structural requirements for proteolytic cleavage of the human immunodeficiency virus type 1 env gene product, gp160, to gp120 and gp41 have been assessed by specific mutagenesis of the sequence Lys Ala Lys Arg Arg Val Val Glu Arg Glu Lys Arg located between amino acids 500 and 511, i.e., at the putative C terminus of gp120. The basic amino acids underlined have been mutated, individually and in combination, to neutral amino acids, and the cleavability of the mutated env gene products was examined after expression in CV-1 cells. The results show that the replacement of Arg-511 (cleavage presumably occurs C terminal to this amino acid) with Ser completely abolishes recognition and cleavage by the cellular protease(s), i.e., the remaining basic amino acids in the vicinity do not serve as alternative substrates. However, Arg-508 and Lys-510 are important features of the recognition site since, when they are individually changed to neutral amino acids, cleavage is severely impaired. The basic amino acids 500, 502, and 504 are, individually, not important for cleavage, since their individual replacement by neutral amino acids does not impair cleavage. However, when all four basic amino acids 500, 502, 503, and 504 are changed to neutral amino acids, cleavage is almost completely abolished. This shows that the sequence Arg Glu Lys Arg at the cleavage site is alone not sufficient for cleavage but that a contribution of other amino acids is required, whether the other amino acids provide a basic character or a certain structure in the vicinity of the cleavage site. When noncleavable or poorly cleavable mutant env genes are expressed from the infectious plasmid pNL4-3 in CD4+ human lymphoblastoid cells, noninfectious virus, incapable of spread throughout the culture, is produced.
Indexed as
Identifiers
What OpenQuestion holds
Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.