Replication and trafficking of a plant virus are coupled at the entrances of plasmodesmata (Record no. 49093)

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control field MX-MdCICY
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control field 20250625153950.0
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Transcribing agency CICY
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Classification number (OCLC) (R) ; Classification number, CALL (RLIN) (NR) B-14909
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Title Replication and trafficking of a plant virus are coupled at the entrances of plasmodesmata
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Volume/sequential designation Journal of Cell Biology, 201(7), p.981-995, 2013
520 3# - SUMMARY, ETC.
Summary, etc. lant viruses use movement proteins (MPs)to modify intercellular pores called plasmodesmata (PD)to cross the plant cell wall. Many viruses encode a conserved set of three MPs, known as the triple gene block (TGB), typified by Potato virus X (PVX). In this paper, using live-cell imaging of viral RNA (vRNA)and virus-encoded proteins, we show that the TGB proteins have distinct functions during movement. TGB2 and TGB3 established endoplasmic reticulum-derived mem-branous caps at PD orifices. These caps harbored the PVX replicase and nonencapsidated vRNA and repre-sented PD-anchored viral replication sites. TGB1 medi-ated insertion of the viral coat protein into PD, probably by its interaction with the 5?end of nascent virions, and was recruited to PD by the TGB2/3 complex. We pro-pose a new model of plant virus movement, which we term coreplicational insertion, in which MPs function to compartmentalize replication complexes at PD for local-ized RNA synthesis and directional trafficking of the virus between cells.
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Personal name Tilsner, J.
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Personal name Linnik, O.
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Personal name Louveaux, M.
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Personal name Roberts, I.M.
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Personal name Chapman, S.N.
700 12 - ADDED ENTRY--PERSONAL NAME
Personal name Oparka, K.J.
856 40 - ELECTRONIC LOCATION AND ACCESS
Uniform Resource Identifier <a href="https://drive.google.com/file/d/1Pe1yfLtetAbL8h7y5SJHAcf25jB2Ox0b/view?usp=drivesdk">https://drive.google.com/file/d/1Pe1yfLtetAbL8h7y5SJHAcf25jB2Ox0b/view?usp=drivesdk</a>
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Source of classification or shelving scheme Clasificación local
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  Clasificación local     Ref1 CICY CICY Documento préstamo interbibliotecario 25.06.2025   B-14909 25.06.2025 25.06.2025 Documentos solicitados