Polyomavirus large T antigens: Unraveling a complex interactome

All members of the polyomavirus family encode a large T antigen (LT) protein that plays essential roles in viral DNA replication, regulation of viral gene expression, and the manipulation of numerous cellular pathways. Over 100 polyomaviruses have been discovered in hosts ranging from arthropods and...

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Main Authors: Matthew R. Googins, Ping An, Christian H. Gauthier, James M. Pipas
Format: Article
Language:English
Published: Elsevier 2025-06-01
Series:Tumour Virus Research
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S2666679024000302
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author Matthew R. Googins
Ping An
Christian H. Gauthier
James M. Pipas
author_facet Matthew R. Googins
Ping An
Christian H. Gauthier
James M. Pipas
author_sort Matthew R. Googins
collection DOAJ
description All members of the polyomavirus family encode a large T antigen (LT) protein that plays essential roles in viral DNA replication, regulation of viral gene expression, and the manipulation of numerous cellular pathways. Over 100 polyomaviruses have been discovered in hosts ranging from arthropods and fish to mammals, including fourteen that infect humans. LT is among the most studied viral proteins with thousands of articles describing its functions in viral productive infection and tumorigenesis. However, nearly all knowledge of LT activities is based on the studies of simian virus 40 (SV40) and a few other viruses. Comparative studies of LT proteins of different polyomaviruses have revealed a remarkable diversity in the mechanisms by which LT proteins function across different polyomavirus species. This review focuses on human polyomaviruses highlights the similarities and differences between polyomavirus LTs and highlights gaps in our understanding of this protein family. The concentration of knowledge around SV40 LT and the corresponding lack of mechanistic studies on LT proteins encoded by other human and animal polyomaviruses severely constrains our understanding of the biology of this important virus family.
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spelling doaj-art-e835c2f80e3c4ac69edcf77bbe0bc8392025-08-20T03:45:28ZengElsevierTumour Virus Research2666-67902025-06-011920030610.1016/j.tvr.2024.200306Polyomavirus large T antigens: Unraveling a complex interactomeMatthew R. Googins0Ping An1Christian H. Gauthier2James M. Pipas3Department of Biological Sciences, University of Pittsburgh, Pittsburgh, PA, 15260, USADepartment of Biological Sciences, University of Pittsburgh, Pittsburgh, PA, 15260, USADepartment of Biological Sciences, University of Pittsburgh, Pittsburgh, PA, 15260, USACorresponding author.; Department of Biological Sciences, University of Pittsburgh, Pittsburgh, PA, 15260, USAAll members of the polyomavirus family encode a large T antigen (LT) protein that plays essential roles in viral DNA replication, regulation of viral gene expression, and the manipulation of numerous cellular pathways. Over 100 polyomaviruses have been discovered in hosts ranging from arthropods and fish to mammals, including fourteen that infect humans. LT is among the most studied viral proteins with thousands of articles describing its functions in viral productive infection and tumorigenesis. However, nearly all knowledge of LT activities is based on the studies of simian virus 40 (SV40) and a few other viruses. Comparative studies of LT proteins of different polyomaviruses have revealed a remarkable diversity in the mechanisms by which LT proteins function across different polyomavirus species. This review focuses on human polyomaviruses highlights the similarities and differences between polyomavirus LTs and highlights gaps in our understanding of this protein family. The concentration of knowledge around SV40 LT and the corresponding lack of mechanistic studies on LT proteins encoded by other human and animal polyomaviruses severely constrains our understanding of the biology of this important virus family.http://www.sciencedirect.com/science/article/pii/S2666679024000302PolyomavirusesLarge T antigenProtein-protein interactionsPhosphorylationDNA replication
spellingShingle Matthew R. Googins
Ping An
Christian H. Gauthier
James M. Pipas
Polyomavirus large T antigens: Unraveling a complex interactome
Tumour Virus Research
Polyomaviruses
Large T antigen
Protein-protein interactions
Phosphorylation
DNA replication
title Polyomavirus large T antigens: Unraveling a complex interactome
title_full Polyomavirus large T antigens: Unraveling a complex interactome
title_fullStr Polyomavirus large T antigens: Unraveling a complex interactome
title_full_unstemmed Polyomavirus large T antigens: Unraveling a complex interactome
title_short Polyomavirus large T antigens: Unraveling a complex interactome
title_sort polyomavirus large t antigens unraveling a complex interactome
topic Polyomaviruses
Large T antigen
Protein-protein interactions
Phosphorylation
DNA replication
url http://www.sciencedirect.com/science/article/pii/S2666679024000302
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AT jamesmpipas polyomaviruslargetantigensunravelingacomplexinteractome