[The electrophysiological properties of the structural polypeptides of the foot-and-mouth-disease virus]

Nauchnye Doklady Vysshei Shkoly. Biologicheskie Nauki
|January 1, 1992
PubMed

Insights

This study presents methods for analyzing Foot-and-Mouth Disease Virus (FMDV) polypeptides using electrophoresis and electro-focussing. Findings reveal FMDV

Area of Science:

  • Virology
  • Biochemistry
  • Structural Biology

Background:

  • Foot-and-Mouth Disease Virus (FMDV) is a significant pathogen affecting livestock.
  • Understanding the structural and electrical properties of FMDV is crucial for developing effective control strategies.
  • Previous research has focused on FMDV serotypes but lacked detailed analysis of polypeptide properties and virion charge.

Purpose of the Study:

  • To present methodological approaches for isolating and analyzing FMDV structural polypeptides.
  • To determine the isoelectric points and electric potential of FMDV structural polypeptides.
  • To elucidate the virion structure, charge distribution, and environmental resistance of FMDV serotypes.

Main Methods:

  • Isolation of FMDV structural polypeptide preparations.
  • Analysis using electrophoresis and electro-focussing techniques.
  • Application of the superposition principle for virion structure analysis.

Main Results:

  • Isoelectric points and electric potential values for FMDV structural polypeptides were determined.
  • Similarities and differences among FMDV serotypes were identified based on polypeptide surface distribution.
  • FMDV exhibits a summarized negative charge, varying by type, which influences environmental resistance.

Conclusions:

  • A graphical model of FMDV, reflecting dipole charge distribution and icosahedral symmetry, was proposed.
  • The determined electrical properties provide insights into FMDV serotype characteristics and environmental persistence.
  • This study enhances the understanding of FMDV structure-function relationships for potential therapeutic and prophylactic interventions.

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.
Leaky Scanning02:28

Leaky Scanning

During most eukaryotic translation processes, the small 40S ribosome subunit scans an mRNA from its 5' end until it encounters the first start AUG codon. The large 60S ribosomal subunit then joins the smaller one to initiate protein synthesis. The location of the translation initiation is largely determined by the nucleotides near the start codon as there may be multiple translation initiation sites present on the mRNA.  Marilyn Kozak discovered that the sequence RCCAUGG (where R stands for...
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...
Poliomyelitis01:17

Poliomyelitis

Poliomyelitis is caused by poliovirus, a small, non-enveloped, positive-sense RNA virus of the Picornaviridae family and Enterovirus genus. Transmission occurs primarily via the fecal-oral route, often through ingestion of contaminated water or food. The virus initially replicates in the oropharynx and intestinal mucosa, particularly in lymphoid tissues such as the tonsils, Peyer’s patches, and regional lymph nodes. Primary viremia follows, allowing dissemination throughout the body.In most...
Rabies01:28

Rabies

Rabies is a lethal zoonotic disease caused by a single-stranded, negative-sense RNA virus of the Lyssavirus genus, within the family Rhabdoviridae. Its primary mode of transmission to humans is through bites or saliva-contaminated scratches from infected mammals such as dogs, bats, raccoons, or foxes. Transmission can also occur if infectious saliva contacts abraded skin or intact mucous membranes, including the conjunctiva.Viral Entry and Early ReplicationOnce introduced at the bite or scratch...
Coronavirus01:29

Coronavirus

Coronaviruses, including the severe acute respiratory syndrome coronavirus (SARS-CoV), are enveloped viruses characterized by their single-stranded, positive-sense RNA genome and helical nucleocapsid structure. The hallmark of these viruses is their club-shaped spike (S) glycoproteins that protrude from the viral envelope, facilitating attachment to host cells. Typically, coronaviruses infect the upper respiratory tract, often causing mild or asymptomatic disease. However, certain strains like...