Related Experiment Video
Updated: May 24, 2026

08:31
Advancing High-Resolution Imaging of Virus Assemblies in Liquid and Ice
Published on: July 20, 2022
Crystal structure of human enterovirus 71
Pavel Plevka1, Rushika Perera, Jane Cardosa
1Department of Biological Sciences, Purdue University, West Lafayette, IN 47907, USA.
Summary
Enterovirus 71 causes fatal neurological illness. Its crystal structure reveals a partly exposed pocket factor, suggesting antiviral drugs need specific hydrophilic head groups for effective treatment.
Area of Science:
- Virology
- Structural Biology
- Infectious Diseases
Background:
- Enterovirus 71 (EV71) is a picornavirus linked to severe neurological disease in children.
- Understanding EV71's structure is crucial for developing targeted antiviral therapies.
Purpose of the Study:
- To determine the crystal structure of Enterovirus 71.
- To identify structural features that could be targeted by antiviral compounds.
Main Methods:
- X-ray crystallography was used to resolve the three-dimensional structure of Enterovirus 71.
Main Results:
- The crystal structure of EV71 was determined.
- Unlike other enteroviruses, the pocket factor in EV71 is partially exposed at the canyon floor.
- This unique structural feature suggests a specific binding site for potential drugs.
Conclusions:
- The exposed pocket factor in EV71 presents a novel target for antiviral drug design.
- Antiviral compounds may require hydrophilic head groups to interact with residues at the pocket entrance for efficacy against EV71.
Related Concept Videos
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 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...
Antibody Structure
Overview
Antibodies, also known as immunoglobulins (Ig), are essential players of the adaptive immune system. These antigen-binding proteins are produced by B cells and make up 20 percent of the total blood plasma by weight. In mammals, antibodies fall into five different classes, which each elicits a different biological response upon antigen binding.
The Y-Shaped Structure of Antibodies Consists of Four Polypeptide Chains
Antibodies consist of four polypeptide chains: two identical heavy...
Antibodies, also known as immunoglobulins (Ig), are essential players of the adaptive immune system. These antigen-binding proteins are produced by B cells and make up 20 percent of the total blood plasma by weight. In mammals, antibodies fall into five different classes, which each elicits a different biological response upon antigen binding.
The Y-Shaped Structure of Antibodies Consists of Four Polypeptide Chains
Antibodies consist of four polypeptide chains: two identical heavy...
Antibody Structure
Overview
Antibodies, also known as immunoglobulins (Ig), are essential players of the adaptive immune system. These antigen-binding proteins are produced by B cells and make up 20 percent of the total blood plasma by weight. In mammals, antibodies fall into five different classes, which each elicits a different biological response upon antigen binding.
The Y-Shaped Structure of Antibodies Consists of Four Polypeptide Chains
Antibodies consist of four polypeptide chains: two identical heavy...
Antibodies, also known as immunoglobulins (Ig), are essential players of the adaptive immune system. These antigen-binding proteins are produced by B cells and make up 20 percent of the total blood plasma by weight. In mammals, antibodies fall into five different classes, which each elicits a different biological response upon antigen binding.
The Y-Shaped Structure of Antibodies Consists of Four Polypeptide Chains
Antibodies consist of four polypeptide chains: two identical heavy...

