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Structural studies of human enteric adenovirus type 41
Anne-Laure Favier1, Guy Schoehn, Michel Jaquinod
1Institut de Biologie Structurale, 41 rue Jules Horowitz, 38027 Grenoble, France.
Virology
|February 21, 2002
Summary
Researchers successfully grew and purified human adenovirus 41 (HAdV-41), revealing insights into its unique fiber proteins. Electron microscopy suggests an equal ratio of short and long fibers on each virus particle.
Area of Science:
- Virology
- Structural Biology
- Biochemistry
Background:
- Enteric adenoviruses, specifically serotypes 40 and 41, exhibit unique structural characteristics, including two distinct fiber proteins.
- These viruses are challenging to cultivate in laboratory settings, hindering detailed structural and functional studies.
Purpose of the Study:
- To detail the successful cultivation and purification of human adenovirus 41 (HAdV-41).
- To analyze the structural proteins of HAdV-41, focusing on the short and long fibers, and their proportions on the virion.
Main Methods:
- Biochemical analysis
- Mass spectrometry
- Electron microscopy (EM)
- Protein purification
Main Results:
- Successful growth and purification of HAdV-41 were achieved.
- Analysis revealed that penton proteins, comprising short and long fibers, exhibited limited migration in denaturing polyacrylamide gels, potentially due to high isoelectric points (pI).
- Electron microscopy data indicated an equal distribution of short and long fibers on each HAdV-41 virion.
Conclusions:
- The study provides a detailed protocol for HAdV-41 cultivation and purification.
- Structural characterization of HAdV-41 proteins, particularly the fibers, offers new insights into its virion composition.
- The findings contribute to understanding the structural basis of enteric adenovirus biology and potential therapeutic targets.