Viruses-12-00020-g008 PBCV-1 replicaton cycle (frameless)

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Provided by James L. Van Etten, Irina V. Agarkova, David D. Dunigan. Created by Kang et al.

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Proposed replication cycle of PBCV-1. The virus binds to the surface of the alga and opens a portal to release the viral DNA and associated proteins; the viral DNA moves to the nucleus where early gene transcription begins at 5 to 10 min p.i. Early mRNAs move to the cytoplasm for translation, and at least some early proteins presumably return to the viral genome located at or near to the nucleus to initiate viral DNA replication, which begins ~60 p.i., followed by late gene transcription. Late mRNAs move to the cytoplasm for translation and many of these late proteins are targeted to the virus assembly centers, where virus capsids are formed and DNA is packaged. Mature infectious virus particlles appear in the cytoplasm of the cell ~45 min prior to virus release. The chlorella cell membrane and wall lyses, and infectious PBCV-1 progeny viruses are released at 6 to 8 h p.i. (→) Known events; (---->) hypothesized events.

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https://www.mdpi.com/viruses/viruses-12-00020/article_deploy/html/images/viruses-12-00020-g008.png at https://www.mdpi.com/1999-4915/12/1/20/htm (edit) Viruses 2020, 12(1), 20;doi:10.3390/v12010020

This article belongs to the Special Issue Viruses Ten-Year Anniversary. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).

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