“Non-Essential” Proteins of HSV-1 with Essential Roles In Vivo: A Comprehensive Review

Viruses encode for structural proteins that participate in virion formation and include capsid and envelope proteins. In addition, viruses encode for an array of non-structural accessory proteins important for replication, spread, and immune evasion in the host and are often linked to virus pathogen...

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Main Authors: Christos Dogrammatzis, Hope Waisner, Maria Kalamvoki
Format: Article
Language:English
Published: MDPI AG 2020-12-01
Series:Viruses
Subjects:
Online Access:https://www.mdpi.com/1999-4915/13/1/17
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author Christos Dogrammatzis
Hope Waisner
Maria Kalamvoki
author_facet Christos Dogrammatzis
Hope Waisner
Maria Kalamvoki
author_sort Christos Dogrammatzis
collection DOAJ
description Viruses encode for structural proteins that participate in virion formation and include capsid and envelope proteins. In addition, viruses encode for an array of non-structural accessory proteins important for replication, spread, and immune evasion in the host and are often linked to virus pathogenesis. Most virus accessory proteins are non-essential for growth in cell culture because of the simplicity of the infection barriers or because they have roles only during a state of the infection that does not exist in cell cultures (i.e., tissue-specific functions), or finally because host factors in cell culture can complement their absence. For these reasons, the study of most nonessential viral factors is more complex and requires development of suitable cell culture systems and in vivo models. Approximately half of the proteins encoded by the herpes simplex virus 1 (HSV-1) genome have been classified as non-essential. These proteins have essential roles in vivo in counteracting antiviral responses, facilitating the spread of the virus from the sites of initial infection to the peripheral nervous system, where it establishes lifelong reservoirs, virus pathogenesis, and other regulatory roles during infection. Understanding the functions of the non-essential proteins of herpesviruses is important to understand mechanisms of viral pathogenesis but also to harness properties of these viruses for therapeutic purposes. Here, we have provided a comprehensive summary of the functions of HSV-1 non-essential proteins.
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spelling doaj.art-e83aaf0230444b16b47e479c000d90eb2023-11-21T02:19:02ZengMDPI AGViruses1999-49152020-12-011311710.3390/v13010017“Non-Essential” Proteins of HSV-1 with Essential Roles In Vivo: A Comprehensive ReviewChristos Dogrammatzis0Hope Waisner1Maria Kalamvoki2Department of Microbiology, Molecular Genetics, and Immunology, University of Kansas Medical Center, Kansas City, KS 66160, USADepartment of Microbiology, Molecular Genetics, and Immunology, University of Kansas Medical Center, Kansas City, KS 66160, USADepartment of Microbiology, Molecular Genetics, and Immunology, University of Kansas Medical Center, Kansas City, KS 66160, USAViruses encode for structural proteins that participate in virion formation and include capsid and envelope proteins. In addition, viruses encode for an array of non-structural accessory proteins important for replication, spread, and immune evasion in the host and are often linked to virus pathogenesis. Most virus accessory proteins are non-essential for growth in cell culture because of the simplicity of the infection barriers or because they have roles only during a state of the infection that does not exist in cell cultures (i.e., tissue-specific functions), or finally because host factors in cell culture can complement their absence. For these reasons, the study of most nonessential viral factors is more complex and requires development of suitable cell culture systems and in vivo models. Approximately half of the proteins encoded by the herpes simplex virus 1 (HSV-1) genome have been classified as non-essential. These proteins have essential roles in vivo in counteracting antiviral responses, facilitating the spread of the virus from the sites of initial infection to the peripheral nervous system, where it establishes lifelong reservoirs, virus pathogenesis, and other regulatory roles during infection. Understanding the functions of the non-essential proteins of herpesviruses is important to understand mechanisms of viral pathogenesis but also to harness properties of these viruses for therapeutic purposes. Here, we have provided a comprehensive summary of the functions of HSV-1 non-essential proteins.https://www.mdpi.com/1999-4915/13/1/17HSV-1 non-essential proteinsHSV-1 egressHSV-1 envelopmentinnate immunityHSV-1 based therapiesgene silencing
spellingShingle Christos Dogrammatzis
Hope Waisner
Maria Kalamvoki
“Non-Essential” Proteins of HSV-1 with Essential Roles In Vivo: A Comprehensive Review
Viruses
HSV-1 non-essential proteins
HSV-1 egress
HSV-1 envelopment
innate immunity
HSV-1 based therapies
gene silencing
title “Non-Essential” Proteins of HSV-1 with Essential Roles In Vivo: A Comprehensive Review
title_full “Non-Essential” Proteins of HSV-1 with Essential Roles In Vivo: A Comprehensive Review
title_fullStr “Non-Essential” Proteins of HSV-1 with Essential Roles In Vivo: A Comprehensive Review
title_full_unstemmed “Non-Essential” Proteins of HSV-1 with Essential Roles In Vivo: A Comprehensive Review
title_short “Non-Essential” Proteins of HSV-1 with Essential Roles In Vivo: A Comprehensive Review
title_sort non essential proteins of hsv 1 with essential roles in vivo a comprehensive review
topic HSV-1 non-essential proteins
HSV-1 egress
HSV-1 envelopment
innate immunity
HSV-1 based therapies
gene silencing
url https://www.mdpi.com/1999-4915/13/1/17
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