DNA viruses and viral proteins that interact with PML nuclear bodies

R D Everett1

  • 1MRC Virology Unit, Church Street, Glasgow G11 5JR, UK.

Oncogene
|November 13, 2001
PubMed

Insights

This review explores how DNA viruses interact with promyelocytic leukemia nuclear bodies (PML NBs). Understanding these connections is crucial for deciphering viral replication strategies and host-pathogen interactions.

Area of Science:

  • Molecular Biology
  • Virology
  • Cell Biology

Background:

  • Promyelocytic leukemia nuclear bodies (PML NBs) are nuclear structures implicated in various cellular processes.
  • A general association between DNA viruses and PML NBs has been observed since early research.
  • Viral regulatory proteins can interact with and alter PML NBs.

Purpose of the Study:

  • To review recent advancements in the understanding of PML NB interactions with DNA viruses.
  • To highlight the molecular mechanisms underlying these interactions.
  • To discuss the impact of these interactions on viral replication and infection.

Main Methods:

  • Literature review of studies on PML NBs and DNA viruses.
  • Analysis of research on herpesviruses, adenoviruses, and papovaviruses.
  • Synthesis of findings on viral genome association and replication centers.

Main Results:

  • Parental DNA viral genomes often associate with PML NBs.
  • Viral transcription and replication sites are frequently located near PML NBs.
  • Viral proteins can modify PML NBs, affecting viral infection efficiency.

Conclusions:

  • The interplay between PML NBs and DNA viruses is complex and multifaceted.
  • Further research is needed to fully elucidate the molecular mechanisms involved.
  • Understanding these interactions may reveal new targets for antiviral therapies.

Related Concept Videos

Viral Structure00:56

Viral Structure

Viruses are extraordinarily diverse in shape and size, but they all have several structural features in common. All viruses have a core that contains a DNA- or RNA-based genome. The core is surrounded by a protective coat of proteins called the capsid. The capsid is composed of subunits called capsomeres. The capsid and genome-containing core are together known as the nucleocapsid.
Size and Structure of Viral Genomes01:26

Size and Structure of Viral Genomes

Viral genomes exhibit remarkable diversity in size, structure, and composition, influencing their replication strategies and interactions with host cells. These genomes consist of either DNA or RNA and may be linear or circular. Additionally, they can be single-stranded or double-stranded, with each configuration affecting how the virus propagates within a host. RNA viruses, for instance, generally have smaller genomes than DNA viruses, a factor that contributes to their high mutation rates and...
Viruses with RNA Genomes01:29

Viruses with RNA Genomes

RNA viruses are categorized into positive-strand, negative-strand, or double-stranded groups based on their genomic structure and replication mechanisms. This classification dictates how they exploit host cellular machinery for protein synthesis and replication. Some RNA viruses also utilize reverse transcription as part of their life cycle, further diversifying their replication strategies.Positive-Strand RNA VirusesPositive-strand RNA viruses have genomes that function directly as messenger...
Subviral Agents01:29

Subviral Agents

Subviral agents are infectious entities that resemble viruses but lack one or more viral components, such as a capsid or essential replication machinery. These agents include viroids, prions, and satellites, each possessing distinct structural and functional characteristics that influence their mode of infection and replication.Viroids are the simplest subviral agents, consisting of circular, single-stranded RNA molecules without a protein coat. They exclusively infect plants, relying entirely...
Inhibitors Of Virion Release01:25

Inhibitors Of Virion Release

Viral replication and dissemination rely on efficient mechanisms for host cell entry, genome replication, assembly, and release. Influenza viruses, such as types A and B, are negative-sense single-stranded RNA viruses with a segmented genome, that depend on two critical surface glycoproteins to carry out these processes: hemagglutinin (HA) and neuraminidase (NA). HA initiates infection by binding to sialic acid residues on the surface of host epithelial cells, facilitating receptor-mediated...
Inhibitors of Virion Maturation and Assembly01:19

Inhibitors of Virion Maturation and Assembly

As part of their replication cycle, certain viruses synthesize long precursor proteins called polyproteins within infected host cells. In human immunodeficiency virus (HIV), two major polyproteins are produced: Gag and Gag-Pol. The Gag polyprotein supplies the structural components of the virus, while Gag-Pol includes essential viral enzymes such as reverse transcriptase, integrase, and protease. After synthesis, these polyproteins move to the host cell membrane, where they assemble into an...