Structural Analysis of Retrovirus Assembly and Maturation

Retroviruses have a very complex and tightly controlled life cycle which has been studied intensely for decades. After a virus enters the cell, it reverse-transcribes its genome, which is then integrated into the host genome, and subsequently all structural and regulatory proteins are transcribed an...

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Main Authors: Anna-Sophia Krebs, Luiza M. Mendonça, Peijun Zhang
Format: Article
Language:English
Published: MDPI AG 2021-12-01
Series:Viruses
Subjects:
Online Access:https://www.mdpi.com/1999-4915/14/1/54
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author Anna-Sophia Krebs
Luiza M. Mendonça
Peijun Zhang
author_facet Anna-Sophia Krebs
Luiza M. Mendonça
Peijun Zhang
author_sort Anna-Sophia Krebs
collection DOAJ
description Retroviruses have a very complex and tightly controlled life cycle which has been studied intensely for decades. After a virus enters the cell, it reverse-transcribes its genome, which is then integrated into the host genome, and subsequently all structural and regulatory proteins are transcribed and translated. The proteins, along with the viral genome, assemble into a new virion, which buds off the host cell and matures into a newly infectious virion. If any one of these steps are faulty, the virus cannot produce infectious viral progeny. Recent advances in structural and molecular techniques have made it possible to better understand this class of viruses, including details about how they regulate and coordinate the different steps of the virus life cycle. In this review we summarize the molecular analysis of the assembly and maturation steps of the life cycle by providing an overview on structural and biochemical studies to understand these processes. We also outline the differences between various retrovirus families with regards to these processes.
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spelling doaj.art-0a6171a2cb1d4fac835dc6ba670754f12023-11-23T15:41:26ZengMDPI AGViruses1999-49152021-12-011415410.3390/v14010054Structural Analysis of Retrovirus Assembly and MaturationAnna-Sophia Krebs0Luiza M. Mendonça1Peijun Zhang2Division of Structural Biology, Wellcome Trust Centre for Human Genetics, University of Oxford, Oxford OX3 7BN, UKDivision of Structural Biology, Wellcome Trust Centre for Human Genetics, University of Oxford, Oxford OX3 7BN, UKDivision of Structural Biology, Wellcome Trust Centre for Human Genetics, University of Oxford, Oxford OX3 7BN, UKRetroviruses have a very complex and tightly controlled life cycle which has been studied intensely for decades. After a virus enters the cell, it reverse-transcribes its genome, which is then integrated into the host genome, and subsequently all structural and regulatory proteins are transcribed and translated. The proteins, along with the viral genome, assemble into a new virion, which buds off the host cell and matures into a newly infectious virion. If any one of these steps are faulty, the virus cannot produce infectious viral progeny. Recent advances in structural and molecular techniques have made it possible to better understand this class of viruses, including details about how they regulate and coordinate the different steps of the virus life cycle. In this review we summarize the molecular analysis of the assembly and maturation steps of the life cycle by providing an overview on structural and biochemical studies to understand these processes. We also outline the differences between various retrovirus families with regards to these processes.https://www.mdpi.com/1999-4915/14/1/54HIV-1maturationcapsidcryoEMcryoETretroviruses
spellingShingle Anna-Sophia Krebs
Luiza M. Mendonça
Peijun Zhang
Structural Analysis of Retrovirus Assembly and Maturation
Viruses
HIV-1
maturation
capsid
cryoEM
cryoET
retroviruses
title Structural Analysis of Retrovirus Assembly and Maturation
title_full Structural Analysis of Retrovirus Assembly and Maturation
title_fullStr Structural Analysis of Retrovirus Assembly and Maturation
title_full_unstemmed Structural Analysis of Retrovirus Assembly and Maturation
title_short Structural Analysis of Retrovirus Assembly and Maturation
title_sort structural analysis of retrovirus assembly and maturation
topic HIV-1
maturation
capsid
cryoEM
cryoET
retroviruses
url https://www.mdpi.com/1999-4915/14/1/54
work_keys_str_mv AT annasophiakrebs structuralanalysisofretrovirusassemblyandmaturation
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