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Title: Structure, function and dynamics in adenovirus maturation

Journal Article · · Viruses
DOI:https://doi.org/10.3390/v6114536· OSTI ID:1167152
 [1];  [2]
  1. Brookhaven National Lab. (BNL), Upton, NY (United States)
  2. Centro Nacional de Biotechnologica, Madrid (Spain)

Here we review the current knowledge on maturation of adenovirus, a non-enveloped icosahedral eukaryotic virus. The adenovirus dsDNA genome fills the capsid in complex with a large amount of histone-like viral proteins, forming the core. Maturation involves proteolytic cleavage of several capsid and core precursor proteins by the viral protease (AVP). AVP uses a peptide cleaved from one of its targets as a “molecular sled” to slide on the viral genome and reach its substrates, in a remarkable example of one-dimensional chemistry. Immature adenovirus containing the precursor proteins lacks infectivity because of its inability to uncoat. The immature core is more compact and stable than the mature one, due to the condensing action of unprocessed core polypeptides; shell precursors underpin the vertex region and the connections between capsid and core. Maturation makes the virion metastable, priming it for stepwise uncoating by facilitating vertex release and loosening the condensed genome and its attachment to the icosahedral shell. The packaging scaffold protein L1 52/55k is also a substrate for AVP. Proteolytic processing of L1 52/55k disrupts its interactions with other virion components, providing a mechanism for its removal during maturation. In conclusion, possible roles for maturation of the terminal protein are discussed.

Research Organization:
Brookhaven National Laboratory (BNL), Upton, NY (United States)
Sponsoring Organization:
National Institutes of Health (NIH)
Grant/Contract Number:
SC00112704
OSTI ID:
1167152
Report Number(s):
BNL-107242-2014-JA; VIRUBR; 400412000
Journal Information:
Viruses, Vol. 6, Issue 11; ISSN 1999-4915
Publisher:
MDPICopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 80 works
Citation information provided by
Web of Science

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Beyond the Matrix: The Many Non-ECM Ligands for Integrins journal February 2018
Dynamic competition for hexon binding between core protein VII and lytic protein VI promotes adenovirus maturation and entry posted_content January 2019
Immune-Complexed Adenovirus Induce AIM2-Mediated Pyroptosis in Human Dendritic Cells journal September 2016
Principles of virus uncoating: cues and the snooker ball text January 2016
Adenovirus flow in host cell networks journal February 2019
Emerging Roles of Heparanase in Viral Pathogenesis journal September 2017
Localization of adenovirus morphogenesis players, together with visualization of assembly intermediates and failed products, favor a model where assembly and packaging occur concurrently at the periphery of the replication center journal April 2017
Human adenovirus type 5 vectors deleted of early region 1 (E1) undergo limited expression of early replicative E2 proteins and DNA replication in non-permissive cells journal July 2017
Systematic analysis of biological roles of charged amino acid residues located throughout the structured inner wall of a virus capsid journal June 2018
Maturation of adenovirus primes the protein nano-shell for successful endosomal escape journal January 2019
αvβ3 Integrin Is Required for Efficient Infection of Epithelial Cells with Human Adenovirus Type 26 journal January 2019
Full genome sequence analysis of a novel adenovirus from a captive polar bear (Ursus maritimus) journal February 2020
Components of Adenovirus Genome Packaging journal September 2016
Principles of Virus Uncoating: Cues and the Snooker Ball: Virus Entry and Uncoating journal March 2016
Molecular sled is an eleven-amino acid vehicle facilitating biochemical interactions via sliding components along DNA journal February 2016
Cryo-EM structure of human adenovirus D26 reveals the conservation of structural organization among human adenoviruses journal May 2017
Adenovirus major core protein condenses DNA in clusters and bundles, modulating genome release and capsid internal pressure journal August 2019
Identification of Adomavirus Virion Proteins posted_content March 2020
Humoral immune response to adenovirus induce tolerogenic bystander dendritic cells that promote generation of regulatory T cells journal August 2018
Imaging the adenovirus infection cycle journal November 2019
Adenovirus 5 recovery using nanofiber ion‐exchange adsorbents journal March 2019
Viral and cellular interactions during adenovirus DNA replication journal November 2019
Adenovirus with DNA Packaging Gene Mutations Increased Virus Release journal December 2016
The adenovirus major core protein VII is dispensable for virion assembly but is essential for lytic infection journal June 2017

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